Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson...

55
Selected new results from the Spectroscopy in the sextet BSM Model Chik Him (Ricky) Wong Outline Review η Spectroscopy Correlator construction Improvement using Gradient Flow Preliminary Results Conclusion Selected new results from the Spectroscopy in the sextet BSM Model Selected new results from the Spectroscopy in the sextet BSM Model Chik Him (Ricky) Wong Lattice Higgs Collaboration (LatHC): Zoltán Fodor $ , Kieran Holland * , Julius Kuti , Santanu Mondal - , Dániel Nógrádi - , Chik Him Wong $ † University of California, San Diego * University of the Pacific $ University of Wuppertal - Eötvös University LATTICE 2016 1 / 15

Transcript of Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson...

Page 1: Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson H N2 f 4massless BSM-p’s somehow gains masses from additional interactions, but

Selected newresults from theSpectroscopy

in the sextet BSMModel

Chik Him (Ricky)Wong

Outline

Review

η Spectroscopy

Correlator construction

Improvement usingGradient Flow

Preliminary Results

Conclusion

Selected new results from the Spectroscopyin the sextet BSM Model

Selected new results from the Spectroscopyin the sextet BSM Model

Chik Him (Ricky) Wong

Lattice Higgs Collaboration (LatHC):Zoltán Fodor $, Kieran Holland ∗,Julius Kuti †, Santanu Mondal −,

Dániel Nógrádi −, Chik Him Wong $

† University of California, San Diego * University of the Pacific $ University of Wuppertal - Eötvös University

LATTICE 2016

1 / 15

Page 2: Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson H N2 f 4massless BSM-p’s somehow gains masses from additional interactions, but

Selected newresults from theSpectroscopy

in the sextet BSMModel

Chik Him (Ricky)Wong

Outline

Review

η Spectroscopy

Correlator construction

Improvement usingGradient Flow

Preliminary Results

Conclusion

OutlineOutline

Review: Sextet model as Composite Higgs candidateHadron spectroscopy in Isoscalar JPC = 0−+ (η) channel

Fermionic correlatorGluonic operatorImprovement using Gradient FlowPreliminary results

Conclusion

2 / 15

Page 3: Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson H N2 f 4massless BSM-p’s somehow gains masses from additional interactions, but

Selected newresults from theSpectroscopy

in the sextet BSMModel

Chik Him (Ricky)Wong

Outline

Review

η Spectroscopy

Correlator construction

Improvement usingGradient Flow

Preliminary Results

Conclusion

Sextet model as Composite Higgs candidateSextet model as Composite Higgs candidateCriteria for candidate models in composite Higgs scenario:

Generates Higgs boson consistent with phenomenologyInfrared pseudo-Fixed point(IRFP) + Spontaneous χSB⇒Modelsat the edge of Conformal Window

SU(3) Nf = 2 Sextet(Two-index symmetric) Model

ψLab = ψ

Lba ≡

(uL

ab

dLab

), ψ

Rab = ψ

Rba ≡

(uR

ab dRab)

a,b = 0,1,2Why is it interesting?

Very close to Conformal Window“Minimal” model

Spontaneous Chiral Symmetry Breaking:SU(Nf )L×SU(Nf )R → SU(Nf )V

3 Nambu-Goldstone Bosons (BSM-π) out of N2f −1 are eaten in Higgs

Mechanism:SU(2)W ×U(1)Y → U(1)em

while BSM-f0 is identified as the Higgs boson HN2

f −4 massless BSM-π’s somehow gains masses from additionalinteractions, but far separated from the eaten massless 3, yet not aconcern if Nf = 2⇒ Sextet is “Minimal” realization and hence appealing

3 / 15

Page 4: Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson H N2 f 4massless BSM-p’s somehow gains masses from additional interactions, but

Selected newresults from theSpectroscopy

in the sextet BSMModel

Chik Him (Ricky)Wong

Outline

Review

η Spectroscopy

Correlator construction

Improvement usingGradient Flow

Preliminary Results

Conclusion

Sextet model as Composite Higgs candidateSextet model as Composite Higgs candidateCriteria for candidate models in composite Higgs scenario:

Generates Higgs boson consistent with phenomenologyInfrared pseudo-Fixed point(IRFP) + Spontaneous χSB⇒Modelsat the edge of Conformal Window

SU(3) Nf = 2 Sextet(Two-index symmetric) Model

ψLab = ψ

Lba ≡

(uL

ab

dLab

), ψ

Rab = ψ

Rba ≡

(uR

ab dRab)

a,b = 0,1,2Why is it interesting?

Very close to Conformal Window“Minimal” model

Spontaneous Chiral Symmetry Breaking:SU(Nf )L×SU(Nf )R → SU(Nf )V

3 Nambu-Goldstone Bosons (BSM-π) out of N2f −1 are eaten in Higgs

Mechanism:SU(2)W ×U(1)Y → U(1)em

while BSM-f0 is identified as the Higgs boson HN2

f −4 massless BSM-π’s somehow gains masses from additionalinteractions, but far separated from the eaten massless 3, yet not aconcern if Nf = 2⇒ Sextet is “Minimal” realization and hence appealing

3 / 15

Page 5: Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson H N2 f 4massless BSM-p’s somehow gains masses from additional interactions, but

Selected newresults from theSpectroscopy

in the sextet BSMModel

Chik Him (Ricky)Wong

Outline

Review

η Spectroscopy

Correlator construction

Improvement usingGradient Flow

Preliminary Results

Conclusion

Sextet model as Composite Higgs candidateSextet model as Composite Higgs candidateCriteria for candidate models in composite Higgs scenario:

Generates Higgs boson consistent with phenomenologyInfrared pseudo-Fixed point(IRFP) + Spontaneous χSB⇒Modelsat the edge of Conformal Window

SU(3) Nf = 2 Sextet(Two-index symmetric) Model

ψLab = ψ

Lba ≡

(uL

ab

dLab

), ψ

Rab = ψ

Rba ≡

(uR

ab dRab)

a,b = 0,1,2Why is it interesting?

Very close to Conformal Window“Minimal” model

Spontaneous Chiral Symmetry Breaking:SU(Nf )L×SU(Nf )R → SU(Nf )V

3 Nambu-Goldstone Bosons (BSM-π) out of N2f −1 are eaten in Higgs

Mechanism:SU(2)W ×U(1)Y → U(1)em

while BSM-f0 is identified as the Higgs boson HN2

f −4 massless BSM-π’s somehow gains masses from additionalinteractions, but far separated from the eaten massless 3, yet not aconcern if Nf = 2⇒ Sextet is “Minimal” realization and hence appealing

3 / 15

Page 6: Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson H N2 f 4massless BSM-p’s somehow gains masses from additional interactions, but

Selected newresults from theSpectroscopy

in the sextet BSMModel

Chik Him (Ricky)Wong

Outline

Review

η Spectroscopy

Correlator construction

Improvement usingGradient Flow

Preliminary Results

Conclusion

Sextet model as Composite Higgs candidateSextet model as Composite Higgs candidateCriteria for candidate models in composite Higgs scenario:

Generates Higgs boson consistent with phenomenologyInfrared pseudo-Fixed point(IRFP) + Spontaneous χSB⇒Modelsat the edge of Conformal Window

SU(3) Nf = 2 Sextet(Two-index symmetric) Model

ψLab = ψ

Lba ≡

(uL

ab

dLab

), ψ

Rab = ψ

Rba ≡

(uR

ab dRab)

a,b = 0,1,2Why is it interesting?

Very close to Conformal Window“Minimal” model

Spontaneous Chiral Symmetry Breaking:SU(Nf )L×SU(Nf )R → SU(Nf )V

3 Nambu-Goldstone Bosons (BSM-π) out of N2f −1 are eaten in Higgs

Mechanism:SU(2)W ×U(1)Y → U(1)em

while BSM-f0 is identified as the Higgs boson HN2

f −4 massless BSM-π’s somehow gains masses from additionalinteractions, but far separated from the eaten massless 3, yet not aconcern if Nf = 2⇒ Sextet is “Minimal” realization and hence appealing

3 / 15

Page 7: Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson H N2 f 4massless BSM-p’s somehow gains masses from additional interactions, but

Selected newresults from theSpectroscopy

in the sextet BSMModel

Chik Him (Ricky)Wong

Outline

Review

η Spectroscopy

Correlator construction

Improvement usingGradient Flow

Preliminary Results

Conclusion

Sextet model as Composite Higgs candidateSextet model as Composite Higgs candidateCriteria for candidate models in composite Higgs scenario:

Generates Higgs boson consistent with phenomenologyInfrared pseudo-Fixed point(IRFP) + Spontaneous χSB⇒Modelsat the edge of Conformal Window

SU(3) Nf = 2 Sextet(Two-index symmetric) Model

ψLab = ψ

Lba ≡

(uL

ab

dLab

), ψ

Rab = ψ

Rba ≡

(uR

ab dRab)

a,b = 0,1,2Why is it interesting?

Very close to Conformal Window“Minimal” model

Spontaneous Chiral Symmetry Breaking:SU(Nf )L×SU(Nf )R → SU(Nf )V

3 Nambu-Goldstone Bosons (BSM-π) out of N2f −1 are eaten in Higgs

Mechanism:SU(2)W ×U(1)Y → U(1)em

while BSM-f0 is identified as the Higgs boson HN2

f −4 massless BSM-π’s somehow gains masses from additionalinteractions, but far separated from the eaten massless 3, yet not aconcern if Nf = 2⇒ Sextet is “Minimal” realization and hence appealing

3 / 15

Page 8: Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson H N2 f 4massless BSM-p’s somehow gains masses from additional interactions, but

Selected newresults from theSpectroscopy

in the sextet BSMModel

Chik Him (Ricky)Wong

Outline

Review

η Spectroscopy

Correlator construction

Improvement usingGradient Flow

Preliminary Results

Conclusion

Sextet model as Composite Higgs candidateSextet model as Composite Higgs candidateCriteria for candidate models in composite Higgs scenario:

Generates Higgs boson consistent with phenomenologyInfrared pseudo-Fixed point(IRFP) + Spontaneous χSB⇒Modelsat the edge of Conformal Window

SU(3) Nf = 2 Sextet(Two-index symmetric) Model

ψLab = ψ

Lba ≡

(uL

ab

dLab

), ψ

Rab = ψ

Rba ≡

(uR

ab dRab)

a,b = 0,1,2Why is it interesting?

Very close to Conformal Window“Minimal” model

Spontaneous Chiral Symmetry Breaking:SU(Nf )L×SU(Nf )R → SU(Nf )V

3 Nambu-Goldstone Bosons (BSM-π) out of N2f −1 are eaten in Higgs

Mechanism:SU(2)W ×U(1)Y → U(1)em

while BSM-f0 is identified as the Higgs boson HN2

f −4 massless BSM-π’s somehow gains masses from additionalinteractions, but far separated from the eaten massless 3, yet not aconcern if Nf = 2⇒ Sextet is “Minimal” realization and hence appealing

3 / 15

Page 9: Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson H N2 f 4massless BSM-p’s somehow gains masses from additional interactions, but

Selected newresults from theSpectroscopy

in the sextet BSMModel

Chik Him (Ricky)Wong

Outline

Review

η Spectroscopy

Correlator construction

Improvement usingGradient Flow

Preliminary Results

Conclusion

Sextet model as Composite Higgs candidateSextet model as Composite Higgs candidateCriteria for candidate models in composite Higgs scenario:

Generates Higgs boson consistent with phenomenologyInfrared pseudo-Fixed point(IRFP) + Spontaneous χSB⇒Modelsat the edge of Conformal Window

SU(3) Nf = 2 Sextet(Two-index symmetric) Model

ψLab = ψ

Lba ≡

(uL

ab

dLab

), ψ

Rab = ψ

Rba ≡

(uR

ab dRab)

a,b = 0,1,2Why is it interesting?

Very close to Conformal Window“Minimal” model

Spontaneous Chiral Symmetry Breaking:SU(Nf )L×SU(Nf )R → SU(Nf )V

3 Nambu-Goldstone Bosons (BSM-π) out of N2f −1 are eaten in Higgs

Mechanism:SU(2)W ×U(1)Y → U(1)em

while BSM-f0 is identified as the Higgs boson HN2

f −4 massless BSM-π’s somehow gains masses from additionalinteractions, but far separated from the eaten massless 3, yet not aconcern if Nf = 2⇒ Sextet is “Minimal” realization and hence appealing

3 / 15

Page 10: Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson H N2 f 4massless BSM-p’s somehow gains masses from additional interactions, but

Selected newresults from theSpectroscopy

in the sextet BSMModel

Chik Him (Ricky)Wong

Outline

Review

η Spectroscopy

Correlator construction

Improvement usingGradient Flow

Preliminary Results

Conclusion

Sextet model as Composite Higgs candidateSextet model as Composite Higgs candidateCriteria for candidate models in composite Higgs scenario:

Generates Higgs boson consistent with phenomenologyInfrared pseudo-Fixed point(IRFP) + Spontaneous χSB⇒Modelsat the edge of Conformal Window

SU(3) Nf = 2 Sextet(Two-index symmetric) Model

ψLab = ψ

Lba ≡

(uL

ab

dLab

), ψ

Rab = ψ

Rba ≡

(uR

ab dRab)

a,b = 0,1,2Why is it interesting?

Very close to Conformal Window“Minimal” model

Spontaneous Chiral Symmetry Breaking:SU(Nf )L×SU(Nf )R → SU(Nf )V

3 Nambu-Goldstone Bosons (BSM-π) out of N2f −1 are eaten in Higgs

Mechanism:SU(2)W ×U(1)Y → U(1)em

while BSM-f0 is identified as the Higgs boson HN2

f −4 massless BSM-π’s somehow gains masses from additionalinteractions, but far separated from the eaten massless 3, yet not aconcern if Nf = 2⇒ Sextet is “Minimal” realization and hence appealing

3 / 15

Page 11: Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson H N2 f 4massless BSM-p’s somehow gains masses from additional interactions, but

Selected newresults from theSpectroscopy

in the sextet BSMModel

Chik Him (Ricky)Wong

Outline

Review

η Spectroscopy

Correlator construction

Improvement usingGradient Flow

Preliminary Results

Conclusion

Sextet model as Composite Higgs candidateSextet model as Composite Higgs candidateCriteria for candidate models in composite Higgs scenario:

Generates Higgs boson consistent with phenomenologyInfrared pseudo-Fixed point(IRFP) + Spontaneous χSB⇒Modelsat the edge of Conformal Window

SU(3) Nf = 2 Sextet(Two-index symmetric) Model

ψLab = ψ

Lba ≡

(uL

ab

dLab

), ψ

Rab = ψ

Rba ≡

(uR

ab dRab)

a,b = 0,1,2Why is it interesting?

Very close to Conformal Window“Minimal” model

Spontaneous Chiral Symmetry Breaking:SU(Nf )L×SU(Nf )R → SU(Nf )V

3 Nambu-Goldstone Bosons (BSM-π) out of N2f −1 are eaten in Higgs

Mechanism:SU(2)W ×U(1)Y → U(1)em

while BSM-f0 is identified as the Higgs boson HN2

f −4 massless BSM-π’s somehow gains masses from additionalinteractions, but far separated from the eaten massless 3, yet not aconcern if Nf = 2⇒ Sextet is “Minimal” realization and hence appealing

3 / 15

Page 12: Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson H N2 f 4massless BSM-p’s somehow gains masses from additional interactions, but

Selected newresults from theSpectroscopy

in the sextet BSMModel

Chik Him (Ricky)Wong

Outline

Review

η Spectroscopy

Correlator construction

Improvement usingGradient Flow

Preliminary Results

Conclusion

Sextet model as Composite Higgs candidateSextet model as Composite Higgs candidateCriteria for candidate models in composite Higgs scenario:

Generates Higgs boson consistent with phenomenologyInfrared pseudo-Fixed point(IRFP) + Spontaneous χSB⇒Modelsat the edge of Conformal Window

SU(3) Nf = 2 Sextet(Two-index symmetric) Model

ψLab = ψ

Lba ≡

(uL

ab

dLab

), ψ

Rab = ψ

Rba ≡

(uR

ab dRab)

a,b = 0,1,2Why is it interesting?

Very close to Conformal Window“Minimal” model

Spontaneous Chiral Symmetry Breaking:SU(Nf )L×SU(Nf )R → SU(Nf )V

3 Nambu-Goldstone Bosons (BSM-π) out of N2f −1 are eaten in Higgs

Mechanism:SU(2)W ×U(1)Y → U(1)em

while BSM-f0 is identified as the Higgs boson HN2

f −4 massless BSM-π’s somehow gains masses from additionalinteractions, but far separated from the eaten massless 3, yet not aconcern if Nf = 2⇒ Sextet is “Minimal” realization and hence appealing

3 / 15

Page 13: Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson H N2 f 4massless BSM-p’s somehow gains masses from additional interactions, but

Selected newresults from theSpectroscopy

in the sextet BSMModel

Chik Him (Ricky)Wong

Outline

Review

η Spectroscopy

Correlator construction

Improvement usingGradient Flow

Preliminary Results

Conclusion

Sextet model as Composite Higgs candidateSextet model as Composite Higgs candidateConsistent with χSB

Static Quark Potential: Confining (Fodor et al, PoS (Lattice 2012) 025)

Chiral condensate: Non-zero (Fodor et al, PoS (LATTICE 2013) 089)

β function of gR : No IRFP is observed (Fodor et al, Phys.Rev. D94 (2016) no.1, 014503 )

Hadron SpectroscopyAction: Tree-level Symanzik-Improved 2-stout ρ = 0.15 smearedgauge action with Staggered Nf = 2 Sextet SU(3) fermionsPreviously:(Fodor et al, PoS (LATTICE 2014) 244)

0 0.01 0.02 0.03 0.04 0.05

2

0

2

4

6

8

10

12

14

M /

a0

πf0

β=3.25

00.010.020.030.040.05

2

0

2

4

6

8

10

12

14

M /

0

0.5

1

1.5

2

2.5

3

M / TeV

Na

1

ρ

β=3.20

Decreasing Mπ

Decreasing Mπ

4 / 15

Page 14: Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson H N2 f 4massless BSM-p’s somehow gains masses from additional interactions, but

Selected newresults from theSpectroscopy

in the sextet BSMModel

Chik Him (Ricky)Wong

Outline

Review

η Spectroscopy

Correlator construction

Improvement usingGradient Flow

Preliminary Results

Conclusion

Sextet model as Composite Higgs candidateSextet model as Composite Higgs candidateConsistent with χSB

Static Quark Potential: Confining (Fodor et al, PoS (Lattice 2012) 025)

Chiral condensate: Non-zero (Fodor et al, PoS (LATTICE 2013) 089)

β function of gR : No IRFP is observed (Fodor et al, Phys.Rev. D94 (2016) no.1, 014503 )

Hadron SpectroscopyAction: Tree-level Symanzik-Improved 2-stout ρ = 0.15 smearedgauge action with Staggered Nf = 2 Sextet SU(3) fermionsPreviously:(Fodor et al, PoS (LATTICE 2014) 244)

0 0.01 0.02 0.03 0.04 0.05

2

0

2

4

6

8

10

12

14

M /

a0

πf0

β=3.25

00.010.020.030.040.05

2

0

2

4

6

8

10

12

14

M /

0

0.5

1

1.5

2

2.5

3

M / TeV

Na

1

ρ

β=3.20

Decreasing Mπ

Decreasing Mπ

4 / 15

Page 15: Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson H N2 f 4massless BSM-p’s somehow gains masses from additional interactions, but

Selected newresults from theSpectroscopy

in the sextet BSMModel

Chik Him (Ricky)Wong

Outline

Review

η Spectroscopy

Correlator construction

Improvement usingGradient Flow

Preliminary Results

Conclusion

Sextet model as Composite Higgs candidateSextet model as Composite Higgs candidateConsistent with χSB

Static Quark Potential: Confining (Fodor et al, PoS (Lattice 2012) 025)

Chiral condensate: Non-zero (Fodor et al, PoS (LATTICE 2013) 089)

β function of gR : No IRFP is observed (Fodor et al, Phys.Rev. D94 (2016) no.1, 014503 )

Hadron SpectroscopyAction: Tree-level Symanzik-Improved 2-stout ρ = 0.15 smearedgauge action with Staggered Nf = 2 Sextet SU(3) fermionsPreviously:(Fodor et al, PoS (LATTICE 2014) 244)

0 0.01 0.02 0.03 0.04 0.05

2

0

2

4

6

8

10

12

14

M /

a0

πf0

β=3.25

00.010.020.030.040.05

2

0

2

4

6

8

10

12

14

M /

0

0.5

1

1.5

2

2.5

3

M / TeV

Na

1

ρ

β=3.20

Decreasing Mπ

Decreasing Mπ

4 / 15

Page 16: Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson H N2 f 4massless BSM-p’s somehow gains masses from additional interactions, but

Selected newresults from theSpectroscopy

in the sextet BSMModel

Chik Him (Ricky)Wong

Outline

Review

η Spectroscopy

Correlator construction

Improvement usingGradient Flow

Preliminary Results

Conclusion

Sextet model as Composite Higgs candidateSextet model as Composite Higgs candidateConsistent with χSB

Static Quark Potential: Confining (Fodor et al, PoS (Lattice 2012) 025)

Chiral condensate: Non-zero (Fodor et al, PoS (LATTICE 2013) 089)

β function of gR : No IRFP is observed (Fodor et al, Phys.Rev. D94 (2016) no.1, 014503 )

Hadron SpectroscopyAction: Tree-level Symanzik-Improved 2-stout ρ = 0.15 smearedgauge action with Staggered Nf = 2 Sextet SU(3) fermionsPreviously:(Fodor et al, PoS (LATTICE 2014) 244)

0 0.01 0.02 0.03 0.04 0.05

2

0

2

4

6

8

10

12

14

M /

a0

πf0

β=3.25

00.010.020.030.040.05

2

0

2

4

6

8

10

12

14

M /

0

0.5

1

1.5

2

2.5

3

M / TeV

Na

1

ρ

β=3.20

Decreasing Mπ

Decreasing Mπ

4 / 15

Page 17: Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson H N2 f 4massless BSM-p’s somehow gains masses from additional interactions, but

Selected newresults from theSpectroscopy

in the sextet BSMModel

Chik Him (Ricky)Wong

Outline

Review

η Spectroscopy

Correlator construction

Improvement usingGradient Flow

Preliminary Results

Conclusion

Sextet model as Composite Higgs candidateSextet model as Composite Higgs candidateConsistent with χSB

Static Quark Potential: Confining (Fodor et al, PoS (Lattice 2012) 025)

Chiral condensate: Non-zero (Fodor et al, PoS (LATTICE 2013) 089)

β function of gR : No IRFP is observed (Fodor et al, Phys.Rev. D94 (2016) no.1, 014503 )

Hadron SpectroscopyAction: Tree-level Symanzik-Improved 2-stout ρ = 0.15 smearedgauge action with Staggered Nf = 2 Sextet SU(3) fermionsPreviously:(Fodor et al, PoS (LATTICE 2014) 244)

0 0.01 0.02 0.03 0.04 0.05

2

0

2

4

6

8

10

12

14

M /

a0

πf0

β=3.25

00.010.020.030.040.05

2

0

2

4

6

8

10

12

14

M /

0

0.5

1

1.5

2

2.5

3

M / TeV

Na

1

ρ

β=3.20

Decreasing Mπ

Decreasing Mπ

4 / 15

Page 18: Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson H N2 f 4massless BSM-p’s somehow gains masses from additional interactions, but

Selected newresults from theSpectroscopy

in the sextet BSMModel

Chik Him (Ricky)Wong

Outline

Review

η Spectroscopy

Correlator construction

Improvement usingGradient Flow

Preliminary Results

Conclusion

Sextet model as Composite Higgs candidateSextet model as Composite Higgs candidateConsistent with χSB

Static Quark Potential: Confining (Fodor et al, PoS (Lattice 2012) 025)

Chiral condensate: Non-zero (Fodor et al, PoS (LATTICE 2013) 089)

β function of gR : No IRFP is observed (Fodor et al, Phys.Rev. D94 (2016) no.1, 014503 )

Hadron SpectroscopyAction: Tree-level Symanzik-Improved 2-stout ρ = 0.15 smearedgauge action with Staggered Nf = 2 Sextet SU(3) fermionsPreviously:(Fodor et al, PoS (LATTICE 2014) 244)

0 0.01 0.02 0.03 0.04 0.05

2

0

2

4

6

8

10

12

14

M /

a0

πf0

β=3.25

00.010.020.030.040.05

2

0

2

4

6

8

10

12

14

M /

0

0.5

1

1.5

2

2.5

3

M / TeV

Na

1

ρ

β=3.20

Decreasing Mπ

Decreasing Mπ

4 / 15

Page 19: Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson H N2 f 4massless BSM-p’s somehow gains masses from additional interactions, but

Selected newresults from theSpectroscopy

in the sextet BSMModel

Chik Him (Ricky)Wong

Outline

Review

η Spectroscopy

Correlator construction

Improvement usingGradient Flow

Preliminary Results

Conclusion

Sextet model as Composite Higgs candidateSextet model as Composite Higgs candidateConsistent with χSB

Static Quark Potential: Confining (Fodor et al, PoS (Lattice 2012) 025)

Chiral condensate: Non-zero (Fodor et al, PoS (LATTICE 2013) 089)

β function of gR : No IRFP is observed (Fodor et al, Phys.Rev. D94 (2016) no.1, 014503 )

Hadron SpectroscopyAction: Tree-level Symanzik-Improved 2-stout ρ = 0.15 smearedgauge action with Staggered Nf = 2 Sextet SU(3) fermionsPreviously:(Fodor et al, PoS (LATTICE 2014) 244)

0 0.01 0.02 0.03 0.04 0.05

2

0

2

4

6

8

10

12

14

M /

a0

πf0

β=3.25

00.010.020.030.040.05

2

0

2

4

6

8

10

12

14

M /

0

0.5

1

1.5

2

2.5

3

M / TeV

Na

1

ρ

β=3.20

Decreasing Mπ

Decreasing Mπ

4 / 15

Page 20: Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson H N2 f 4massless BSM-p’s somehow gains masses from additional interactions, but

Selected newresults from theSpectroscopy

in the sextet BSMModel

Chik Him (Ricky)Wong

Outline

Review

η Spectroscopy

Correlator construction

Improvement usingGradient Flow

Preliminary Results

Conclusion

Sextet model as Composite Higgs candidateSextet model as Composite Higgs candidateConsistent with χSB

Static Quark Potential: Confining (Fodor et al, PoS (Lattice 2012) 025)

Chiral condensate: Non-zero (Fodor et al, PoS (LATTICE 2013) 089)

β function of gR : No IRFP is observed (Fodor et al, Phys.Rev. D94 (2016) no.1, 014503 )

Hadron SpectroscopyAction: Tree-level Symanzik-Improved 2-stout ρ = 0.15 smearedgauge action with Staggered Nf = 2 Sextet SU(3) fermionsPreviously:(Fodor et al, PoS (LATTICE 2014) 244)

0 0.01 0.02 0.03 0.04 0.05

2

0

2

4

6

8

10

12

14

M /

a0

πf0

β=3.25

00.010.020.030.040.05

2

0

2

4

6

8

10

12

14

M /

0

0.5

1

1.5

2

2.5

3

M / TeV

Na

1

ρ

β=3.20

Decreasing Mπ

Decreasing Mπ

Light Higgs f0

LHC-reachable resonance candidates ρ , a0, a1

Baryon N: Its spectrum is crucial for predicting relic abundance in the

early Universe and dictates how to embed into SM (Fodor et al, Phys.Rev. D94 (2016) no.1, 014503)

5 / 15

Page 21: Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson H N2 f 4massless BSM-p’s somehow gains masses from additional interactions, but

Selected newresults from theSpectroscopy

in the sextet BSMModel

Chik Him (Ricky)Wong

Outline

Review

η Spectroscopy

Correlator construction

Improvement usingGradient Flow

Preliminary Results

Conclusion

Sextet model as Composite Higgs candidateSextet model as Composite Higgs candidate

Taste breakingGoldstone spectrum depends on m with different slopes⇒ Tastebreaking pattern is different from QCD

0 0.002 0.004 0.006 0.008

m

0

0.02

0.04

0.06

0.08

M2

P

I

V

T

A

β=3.20

0 0.002 0.004 0.006 0.008

m

0

0.02

0.04

0.06

0.08

M2

P

I

V

T

A

β=3.25

χPT analysis is complicated by Taste breaking

6 / 15

Page 22: Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson H N2 f 4massless BSM-p’s somehow gains masses from additional interactions, but

Selected newresults from theSpectroscopy

in the sextet BSMModel

Chik Him (Ricky)Wong

Outline

Review

η Spectroscopy

Correlator construction

Improvement usingGradient Flow

Preliminary Results

Conclusion

Sextet model as Composite Higgs candidateSextet model as Composite Higgs candidate

Taste breakingGoldstone spectrum depends on m with different slopes⇒ Tastebreaking pattern is different from QCD

0 0.002 0.004 0.006 0.008

m

0

0.02

0.04

0.06

0.08

M2

P

I

V

T

A

β=3.20

0 0.002 0.004 0.006 0.008

m

0

0.02

0.04

0.06

0.08

M2

P

I

V

T

A

β=3.25

χPT analysis is complicated by Taste breaking

6 / 15

Page 23: Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson H N2 f 4massless BSM-p’s somehow gains masses from additional interactions, but

Selected newresults from theSpectroscopy

in the sextet BSMModel

Chik Him (Ricky)Wong

Outline

Review

η Spectroscopy

Correlator construction

Improvement usingGradient Flow

Preliminary Results

Conclusion

Sextet model as Composite Higgs candidateSextet model as Composite Higgs candidate

Taste breakingGoldstone spectrum depends on m with different slopes⇒ Tastebreaking pattern is different from QCD

0 0.002 0.004 0.006 0.008

m

0

0.02

0.04

0.06

0.08

M2

P

I

V

T

A

β=3.20

0 0.002 0.004 0.006 0.008

m

0

0.02

0.04

0.06

0.08

M2

P

I

V

T

A

β=3.25

χPT analysis is complicated by Taste breaking

6 / 15

Page 24: Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson H N2 f 4massless BSM-p’s somehow gains masses from additional interactions, but

Selected newresults from theSpectroscopy

in the sextet BSMModel

Chik Him (Ricky)Wong

Outline

Review

η Spectroscopy

Correlator construction

Improvement usingGradient Flow

Preliminary Results

Conclusion

Sextet model as Composite Higgs candidateSextet model as Composite Higgs candidate

Taste breakingGradient Flow ( Martin Luescher Commun.Math.Phys.293:899-919,2010 ) restores taste

Mixed action analysis using Gradient Flow is under development

7 / 15

Page 25: Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson H N2 f 4massless BSM-p’s somehow gains masses from additional interactions, but

Selected newresults from theSpectroscopy

in the sextet BSMModel

Chik Him (Ricky)Wong

Outline

Review

η Spectroscopy

Correlator construction

Improvement usingGradient Flow

Preliminary Results

Conclusion

Sextet model as Composite Higgs candidateSextet model as Composite Higgs candidate

Taste breakingGradient Flow ( Martin Luescher Commun.Math.Phys.293:899-919,2010 ) restores taste

Mixed action analysis using Gradient Flow is under development

7 / 15

Page 26: Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson H N2 f 4massless BSM-p’s somehow gains masses from additional interactions, but

Selected newresults from theSpectroscopy

in the sextet BSMModel

Chik Him (Ricky)Wong

Outline

Review

η Spectroscopy

Correlator construction

Improvement usingGradient Flow

Preliminary Results

Conclusion

Sextet model as Composite Higgs candidateSextet model as Composite Higgs candidate

Taste breakingGradient Flow ( Martin Luescher Commun.Math.Phys.293:899-919,2010 ) restores taste

Mixed action analysis using Gradient Flow is under development

7 / 15

Page 27: Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson H N2 f 4massless BSM-p’s somehow gains masses from additional interactions, but

Selected newresults from theSpectroscopy

in the sextet BSMModel

Chik Him (Ricky)Wong

Outline

Review

η Spectroscopy

Correlator construction

Improvement usingGradient Flow

Preliminary Results

Conclusion

Hadron spectroscopy in η channelHadron spectroscopy in η channel

Where is Mη (Isoscalar JPC = 0−+)?π = ψ̄ γ5 C ψ , ψ = (u,d)T :NG boson

∂µ jµ5 ∼ mj5 ⇒ limm→0

M2π = 0

η = ψ̄ γ5 ψ , ψ = (u,d)T :would-be NG boson, but mass generated by U(1)A anomaly

∂µ jµ5 ∼ 2Nf (Nc±2)q,

+: Symmetric, −: Anti-symmetricWitten-Veneziano formula ( E. Witten, G. Veneziano Nucl. Phys. B 159, 213,269 (1979))

predicts much higher mass than QCD in the chiral limit

M2η ∼

6(Nc±2)f 2π

χt|Nf =0, χt|Nf =0 =∫

dx〈q(0)q(x)〉|Nf =0

8 / 15

Page 28: Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson H N2 f 4massless BSM-p’s somehow gains masses from additional interactions, but

Selected newresults from theSpectroscopy

in the sextet BSMModel

Chik Him (Ricky)Wong

Outline

Review

η Spectroscopy

Correlator construction

Improvement usingGradient Flow

Preliminary Results

Conclusion

Hadron spectroscopy in η channelHadron spectroscopy in η channel

Where is Mη (Isoscalar JPC = 0−+)?π = ψ̄ γ5 C ψ , ψ = (u,d)T :NG boson

∂µ jµ5 ∼ mj5 ⇒ limm→0

M2π = 0

η = ψ̄ γ5 ψ , ψ = (u,d)T :would-be NG boson, but mass generated by U(1)A anomaly

∂µ jµ5 ∼ 2Nf (Nc±2)q,

+: Symmetric, −: Anti-symmetricWitten-Veneziano formula ( E. Witten, G. Veneziano Nucl. Phys. B 159, 213,269 (1979))

predicts much higher mass than QCD in the chiral limit

M2η ∼

6(Nc±2)f 2π

χt|Nf =0, χt|Nf =0 =∫

dx〈q(0)q(x)〉|Nf =0

8 / 15

Page 29: Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson H N2 f 4massless BSM-p’s somehow gains masses from additional interactions, but

Selected newresults from theSpectroscopy

in the sextet BSMModel

Chik Him (Ricky)Wong

Outline

Review

η Spectroscopy

Correlator construction

Improvement usingGradient Flow

Preliminary Results

Conclusion

Hadron spectroscopy in η channelHadron spectroscopy in η channel

Where is Mη (Isoscalar JPC = 0−+)?π = ψ̄ γ5 C ψ , ψ = (u,d)T :NG boson

∂µ jµ5 ∼ mj5 ⇒ limm→0

M2π = 0

η = ψ̄ γ5 ψ , ψ = (u,d)T :would-be NG boson, but mass generated by U(1)A anomaly

∂µ jµ5 ∼ 2Nf (Nc±2)q,

+: Symmetric, −: Anti-symmetricWitten-Veneziano formula ( E. Witten, G. Veneziano Nucl. Phys. B 159, 213,269 (1979))

predicts much higher mass than QCD in the chiral limit

M2η ∼

6(Nc±2)f 2π

χt|Nf =0, χt|Nf =0 =∫

dx〈q(0)q(x)〉|Nf =0

8 / 15

Page 30: Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson H N2 f 4massless BSM-p’s somehow gains masses from additional interactions, but

Selected newresults from theSpectroscopy

in the sextet BSMModel

Chik Him (Ricky)Wong

Outline

Review

η Spectroscopy

Correlator construction

Improvement usingGradient Flow

Preliminary Results

Conclusion

Hadron spectroscopy in η channelHadron spectroscopy in η channel

Where is Mη (Isoscalar JPC = 0−+)?π = ψ̄ γ5 C ψ , ψ = (u,d)T :NG boson

∂µ jµ5 ∼ mj5 ⇒ limm→0

M2π = 0

η = ψ̄ γ5 ψ , ψ = (u,d)T :would-be NG boson, but mass generated by U(1)A anomaly

∂µ jµ5 ∼ 2Nf (Nc±2)q,

+: Symmetric, −: Anti-symmetricWitten-Veneziano formula ( E. Witten, G. Veneziano Nucl. Phys. B 159, 213,269 (1979))

predicts much higher mass than QCD in the chiral limit

M2η ∼

6(Nc±2)f 2π

χt|Nf =0, χt|Nf =0 =∫

dx〈q(0)q(x)〉|Nf =0

8 / 15

Page 31: Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson H N2 f 4massless BSM-p’s somehow gains masses from additional interactions, but

Selected newresults from theSpectroscopy

in the sextet BSMModel

Chik Him (Ricky)Wong

Outline

Review

η Spectroscopy

Correlator construction

Improvement usingGradient Flow

Preliminary Results

Conclusion

Hadron spectroscopy in η channelHadron spectroscopy in η channel

Fermionic correlator

〈η(τ)η(τ0)〉 ≡ −C(τ− τ0)+2D(τ− τ0)

Involves disconnected contribution D(τ− τ0) which are costlyIn the limit τ− τ0→ ∞,

−C(τ− τ0) ∝ Aπ e−Mπ (τ−τ0)

2D(τ− τ0) ∝−Aπ e−Mπ (τ−τ0)+Bη e−Mη (τ−τ0) (Mπ < Mη )

Cancellation of large pion contribution⇒ Noisy

9 / 15

Page 32: Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson H N2 f 4massless BSM-p’s somehow gains masses from additional interactions, but

Selected newresults from theSpectroscopy

in the sextet BSMModel

Chik Him (Ricky)Wong

Outline

Review

η Spectroscopy

Correlator construction

Improvement usingGradient Flow

Preliminary Results

Conclusion

Hadron spectroscopy in η channelHadron spectroscopy in η channel

Fermionic correlator

〈η(τ)η(τ0)〉 ≡ −C(τ− τ0)+2D(τ− τ0)

Involves disconnected contribution D(τ− τ0) which are costlyIn the limit τ− τ0→ ∞,

−C(τ− τ0) ∝ Aπ e−Mπ (τ−τ0)

2D(τ− τ0) ∝−Aπ e−Mπ (τ−τ0)+Bη e−Mη (τ−τ0) (Mπ < Mη )

Cancellation of large pion contribution⇒ Noisy

9 / 15

Page 33: Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson H N2 f 4massless BSM-p’s somehow gains masses from additional interactions, but

Selected newresults from theSpectroscopy

in the sextet BSMModel

Chik Him (Ricky)Wong

Outline

Review

η Spectroscopy

Correlator construction

Improvement usingGradient Flow

Preliminary Results

Conclusion

Hadron spectroscopy in η channelHadron spectroscopy in η channel

Fermionic correlator

〈η(τ)η(τ0)〉 ≡ −C(τ− τ0)+2D(τ− τ0)

Involves disconnected contribution D(τ− τ0) which are costlyIn the limit τ− τ0→ ∞,

−C(τ− τ0) ∝ Aπ e−Mπ (τ−τ0)

2D(τ− τ0) ∝−Aπ e−Mπ (τ−τ0)+Bη e−Mη (τ−τ0) (Mπ < Mη )

Cancellation of large pion contribution⇒ Noisy

9 / 15

Page 34: Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson H N2 f 4massless BSM-p’s somehow gains masses from additional interactions, but

Selected newresults from theSpectroscopy

in the sextet BSMModel

Chik Him (Ricky)Wong

Outline

Review

η Spectroscopy

Correlator construction

Improvement usingGradient Flow

Preliminary Results

Conclusion

Hadron spectroscopy in η channelHadron spectroscopy in η channel

Fermionic correlator

〈η(τ)η(τ0)〉 ≡ −C(τ− τ0)+2D(τ− τ0)

Involves disconnected contribution D(τ− τ0) which are costlyIn the limit τ− τ0→ ∞,

−C(τ− τ0) ∝ Aπ e−Mπ (τ−τ0)

2D(τ− τ0) ∝−Aπ e−Mπ (τ−τ0)+Bη e−Mη (τ−τ0) (Mπ < Mη )

Cancellation of large pion contribution⇒ Noisy

9 / 15

Page 35: Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson H N2 f 4massless BSM-p’s somehow gains masses from additional interactions, but

Selected newresults from theSpectroscopy

in the sextet BSMModel

Chik Him (Ricky)Wong

Outline

Review

η Spectroscopy

Correlator construction

Improvement usingGradient Flow

Preliminary Results

Conclusion

Hadron spectroscopy in η channelHadron spectroscopy in η channel

Gluonic operator (H. Fukaya, Phys. Rev. D 92, 111501 2015)

Mη can be extracted from the topological charge density:

q(x) =1

32π2 εµνρσ Tr Fµν

cl Fρσ

cl (x)

limr→large

−〈q(x)q(y)〉 ∝K1( Mη r )

r, r ≡ |x− y|

Fµν

cl : Field Strength Tensor (clover term)K1: Modified Bessel function of the second kindDoes not couple directly to pions⇒ QuieterNo inversions of Dirac operator⇒ CheaperFurther speed-up by FFT

〈q(x)q(y)〉= 14π2

∫|q̃(k)|2eik(x−y)d4k

10 / 15

Page 36: Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson H N2 f 4massless BSM-p’s somehow gains masses from additional interactions, but

Selected newresults from theSpectroscopy

in the sextet BSMModel

Chik Him (Ricky)Wong

Outline

Review

η Spectroscopy

Correlator construction

Improvement usingGradient Flow

Preliminary Results

Conclusion

Hadron spectroscopy in η channelHadron spectroscopy in η channel

Gluonic operator (H. Fukaya, Phys. Rev. D 92, 111501 2015)

Mη can be extracted from the topological charge density:

q(x) =1

32π2 εµνρσ Tr Fµν

cl Fρσ

cl (x)

limr→large

−〈q(x)q(y)〉 ∝K1( Mη r )

r, r ≡ |x− y|

Fµν

cl : Field Strength Tensor (clover term)K1: Modified Bessel function of the second kindDoes not couple directly to pions⇒ QuieterNo inversions of Dirac operator⇒ CheaperFurther speed-up by FFT

〈q(x)q(y)〉= 14π2

∫|q̃(k)|2eik(x−y)d4k

10 / 15

Page 37: Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson H N2 f 4massless BSM-p’s somehow gains masses from additional interactions, but

Selected newresults from theSpectroscopy

in the sextet BSMModel

Chik Him (Ricky)Wong

Outline

Review

η Spectroscopy

Correlator construction

Improvement usingGradient Flow

Preliminary Results

Conclusion

Hadron spectroscopy in η channelHadron spectroscopy in η channel

Gluonic operator (H. Fukaya, Phys. Rev. D 92, 111501 2015)

Mη can be extracted from the topological charge density:

q(x) =1

32π2 εµνρσ Tr Fµν

cl Fρσ

cl (x)

limr→large

−〈q(x)q(y)〉 ∝K1( Mη r )

r, r ≡ |x− y|

Fµν

cl : Field Strength Tensor (clover term)K1: Modified Bessel function of the second kindDoes not couple directly to pions⇒ QuieterNo inversions of Dirac operator⇒ CheaperFurther speed-up by FFT

〈q(x)q(y)〉= 14π2

∫|q̃(k)|2eik(x−y)d4k

10 / 15

Page 38: Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson H N2 f 4massless BSM-p’s somehow gains masses from additional interactions, but

Selected newresults from theSpectroscopy

in the sextet BSMModel

Chik Him (Ricky)Wong

Outline

Review

η Spectroscopy

Correlator construction

Improvement usingGradient Flow

Preliminary Results

Conclusion

Hadron spectroscopy in η channelHadron spectroscopy in η channel

Gluonic operator (H. Fukaya, Phys. Rev. D 92, 111501 2015)

Mη can be extracted from the topological charge density:

q(x) =1

32π2 εµνρσ Tr Fµν

cl Fρσ

cl (x)

limr→large

−〈q(x)q(y)〉 ∝K1( Mη r )

r, r ≡ |x− y|

Fµν

cl : Field Strength Tensor (clover term)K1: Modified Bessel function of the second kindDoes not couple directly to pions⇒ QuieterNo inversions of Dirac operator⇒ CheaperFurther speed-up by FFT

〈q(x)q(y)〉= 14π2

∫|q̃(k)|2eik(x−y)d4k

10 / 15

Page 39: Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson H N2 f 4massless BSM-p’s somehow gains masses from additional interactions, but

Selected newresults from theSpectroscopy

in the sextet BSMModel

Chik Him (Ricky)Wong

Outline

Review

η Spectroscopy

Correlator construction

Improvement usingGradient Flow

Preliminary Results

Conclusion

Hadron spectroscopy in η channelHadron spectroscopy in η channel

Gluonic operator (H. Fukaya, Phys. Rev. D 92, 111501 2015)

Mη can be extracted from the topological charge density:

q(x) =1

32π2 εµνρσ Tr Fµν

cl Fρσ

cl (x)

limr→large

−〈q(x)q(y)〉 ∝K1( Mη r )

r, r ≡ |x− y|

Fµν

cl : Field Strength Tensor (clover term)K1: Modified Bessel function of the second kindDoes not couple directly to pions⇒ QuieterNo inversions of Dirac operator⇒ CheaperFurther speed-up by FFT

〈q(x)q(y)〉= 14π2

∫|q̃(k)|2eik(x−y)d4k

10 / 15

Page 40: Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson H N2 f 4massless BSM-p’s somehow gains masses from additional interactions, but

Selected newresults from theSpectroscopy

in the sextet BSMModel

Chik Him (Ricky)Wong

Outline

Review

η Spectroscopy

Correlator construction

Improvement usingGradient Flow

Preliminary Results

Conclusion

Hadron spectroscopy in η channelHadron spectroscopy in η channel

Improvement from Gradient FlowCut-off effects can be reduced by the lattice version of GradientFlow with Wilson operator

∂tAµ(t,x) =−∂SYM

∂Aµ

Smooths links similar to diffusion equation with diffusion length√8t in lattice units

Correlator is distorted by footprint⇒ Fitting range of r should befar enough r >> 2

√8t

0 2 4 6 8 10 12 14 16 18 20 22

r=|x-y|

-1e-10

-5e-11

0

5e-11

1e-10

<q

(x)q

(y)>

tf=1.0

tf=2.0

tf=3.5

tf=5.0

643x96, β=3.2500, m=0.001

0 2 4 6 8 10 12 14 16 18 20 22

r=|x-y|

1e-15

1e-14

1e-13

1e-12

1e-11

1e-10

1e-09

1e-08

-<q

(x)q

(y)>

tf=1.0

tf=2.0

tf=3.5

tf=5.0

643x96, β=3.2500, m=0.001

11 / 15

Page 41: Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson H N2 f 4massless BSM-p’s somehow gains masses from additional interactions, but

Selected newresults from theSpectroscopy

in the sextet BSMModel

Chik Him (Ricky)Wong

Outline

Review

η Spectroscopy

Correlator construction

Improvement usingGradient Flow

Preliminary Results

Conclusion

Hadron spectroscopy in η channelHadron spectroscopy in η channel

Improvement from Gradient FlowCut-off effects can be reduced by the lattice version of GradientFlow with Wilson operator

∂tAµ(t,x) =−∂SYM

∂Aµ

Smooths links similar to diffusion equation with diffusion length√8t in lattice units

Correlator is distorted by footprint⇒ Fitting range of r should befar enough r >> 2

√8t

0 2 4 6 8 10 12 14 16 18 20 22

r=|x-y|

-1e-10

-5e-11

0

5e-11

1e-10

<q

(x)q

(y)>

tf=1.0

tf=2.0

tf=3.5

tf=5.0

643x96, β=3.2500, m=0.001

0 2 4 6 8 10 12 14 16 18 20 22

r=|x-y|

1e-15

1e-14

1e-13

1e-12

1e-11

1e-10

1e-09

1e-08

-<q

(x)q

(y)>

tf=1.0

tf=2.0

tf=3.5

tf=5.0

643x96, β=3.2500, m=0.001

11 / 15

Page 42: Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson H N2 f 4massless BSM-p’s somehow gains masses from additional interactions, but

Selected newresults from theSpectroscopy

in the sextet BSMModel

Chik Him (Ricky)Wong

Outline

Review

η Spectroscopy

Correlator construction

Improvement usingGradient Flow

Preliminary Results

Conclusion

Hadron spectroscopy in η channelHadron spectroscopy in η channel

Improvement from Gradient FlowCut-off effects can be reduced by the lattice version of GradientFlow with Wilson operator

∂tAµ(t,x) =−∂SYM

∂Aµ

Smooths links similar to diffusion equation with diffusion length√8t in lattice units

Correlator is distorted by footprint⇒ Fitting range of r should befar enough r >> 2

√8t

0 2 4 6 8 10 12 14 16 18 20 22

r=|x-y|

-1e-10

-5e-11

0

5e-11

1e-10

<q

(x)q

(y)>

tf=1.0

tf=2.0

tf=3.5

tf=5.0

643x96, β=3.2500, m=0.001

0 2 4 6 8 10 12 14 16 18 20 22

r=|x-y|

1e-15

1e-14

1e-13

1e-12

1e-11

1e-10

1e-09

1e-08

-<q

(x)q

(y)>

tf=1.0

tf=2.0

tf=3.5

tf=5.0

643x96, β=3.2500, m=0.001

11 / 15

Page 43: Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson H N2 f 4massless BSM-p’s somehow gains masses from additional interactions, but

Selected newresults from theSpectroscopy

in the sextet BSMModel

Chik Him (Ricky)Wong

Outline

Review

η Spectroscopy

Correlator construction

Improvement usingGradient Flow

Preliminary Results

Conclusion

Hadron spectroscopy in η channelHadron spectroscopy in η channel

Improvement from Gradient FlowCut-off effects can be reduced by the lattice version of GradientFlow with Wilson operator

∂tAµ(t,x) =−∂SYM

∂Aµ

Smooths links similar to diffusion equation with diffusion length√8t in lattice units

Correlator is distorted by footprint⇒ Fitting range of r should befar enough r >> 2

√8t

0 2 4 6 8 10 12 14 16 18 20 22

r=|x-y|

-1e-10

-5e-11

0

5e-11

1e-10

<q

(x)q

(y)>

tf=1.0

tf=2.0

tf=3.5

tf=5.0

643x96, β=3.2500, m=0.001

0 2 4 6 8 10 12 14 16 18 20 22

r=|x-y|

1e-15

1e-14

1e-13

1e-12

1e-11

1e-10

1e-09

1e-08

-<q

(x)q

(y)>

tf=1.0

tf=2.0

tf=3.5

tf=5.0

643x96, β=3.2500, m=0.001

11 / 15

Page 44: Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson H N2 f 4massless BSM-p’s somehow gains masses from additional interactions, but

Selected newresults from theSpectroscopy

in the sextet BSMModel

Chik Him (Ricky)Wong

Outline

Review

η Spectroscopy

Correlator construction

Improvement usingGradient Flow

Preliminary Results

Conclusion

Preliminary ResultsPreliminary Results

4 6 8 10 12 14 16 18 20 22

r=|x-y|

1e-14

1e-13

1e-12

1e-11

-<q

(x)q

(y)>

tf=4.5

643x96, β=3.2500, m=0.001

-<q(x)q(y)>=A*K1(M

η r)/r

A=6.4(2) x 10-9

,Mη=0.418(2), χ

2/dof=0.2

4 6 8 10 12 14 16 18 20 22

r=|x-y|

1e-14

1e-13

1e-12

1e-11

-<q

(x)q

(y)>

tf=5.0

643x96, β=3.2500, m=0.001

-<q(x)q(y)>=A*K1(M

η r)/r

A=6.6(2) x 10-9

,Mη=0.419(2), χ

2/dof=0.3

4 6 8 10 12 14 16 18 20 22

r=|x-y|

1e-14

1e-13

1e-12

1e-11

-<q

(x)q

(y)>

tf=5.5

643x96, β=3.2500, m=0.001

-<q(x)q(y)>=A*K1(M

η r)/r

A=6.3(2) x 10-9

,Mη=0.416(2), χ

2/dof=0.5

3 3.5 4 4.5 5 5.5 6

tf

0.3

0.35

0.4

0.45

0.5

643x96, β=3.2500, m=0.001

12 / 15

Page 45: Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson H N2 f 4massless BSM-p’s somehow gains masses from additional interactions, but

Selected newresults from theSpectroscopy

in the sextet BSMModel

Chik Him (Ricky)Wong

Outline

Review

η Spectroscopy

Correlator construction

Improvement usingGradient Flow

Preliminary Results

Conclusion

Preliminary ResultsPreliminary Results

Mη can be as heavy as > 3 TeVMeasurements from more ensembles at different volumes, β ’s andm’s are available and accumulating

4 6 8 10 12 14 16 18 20 22

r=|x-y|

1e-14

1e-13

1e-12

1e-11

-<q(x

)q(y

)>

tf=5.0

563x96, β=3.2000, m=0.001

4 6 8 10 12 14 16 18 20 22

r=|x-y|

1e-14

1e-13

1e-12

1e-11

-<q(x

)q(y

)>

tf=5.0

563x96, β=3.2000, m=0.0015

4 6 8 10 12 14 16 18 20

r=|x-y|

1e-14

1e-13

1e-12

1e-11

-<q(x

)q(y

)>

tf=5.0

563x96, β=3.2000, m=0.002

Further analysis:The effects of finite volume and fixed topologyCross-check by time-slice-to-time-slice correlator

lim|x4−y4|→large

−∑~x ,~y〈q(x)q(y)〉 ∝ e−Mη |x4−y4|

The mixing between η and pseudoscalar glueball

13 / 15

Page 46: Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson H N2 f 4massless BSM-p’s somehow gains masses from additional interactions, but

Selected newresults from theSpectroscopy

in the sextet BSMModel

Chik Him (Ricky)Wong

Outline

Review

η Spectroscopy

Correlator construction

Improvement usingGradient Flow

Preliminary Results

Conclusion

Preliminary ResultsPreliminary Results

Mη can be as heavy as > 3 TeVMeasurements from more ensembles at different volumes, β ’s andm’s are available and accumulating

4 6 8 10 12 14 16 18 20 22

r=|x-y|

1e-14

1e-13

1e-12

1e-11

-<q(x

)q(y

)>

tf=5.0

563x96, β=3.2000, m=0.001

4 6 8 10 12 14 16 18 20 22

r=|x-y|

1e-14

1e-13

1e-12

1e-11

-<q(x

)q(y

)>

tf=5.0

563x96, β=3.2000, m=0.0015

4 6 8 10 12 14 16 18 20

r=|x-y|

1e-14

1e-13

1e-12

1e-11

-<q(x

)q(y

)>

tf=5.0

563x96, β=3.2000, m=0.002

Further analysis:The effects of finite volume and fixed topologyCross-check by time-slice-to-time-slice correlator

lim|x4−y4|→large

−∑~x ,~y〈q(x)q(y)〉 ∝ e−Mη |x4−y4|

The mixing between η and pseudoscalar glueball

13 / 15

Page 47: Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson H N2 f 4massless BSM-p’s somehow gains masses from additional interactions, but

Selected newresults from theSpectroscopy

in the sextet BSMModel

Chik Him (Ricky)Wong

Outline

Review

η Spectroscopy

Correlator construction

Improvement usingGradient Flow

Preliminary Results

Conclusion

Preliminary ResultsPreliminary Results

Mη can be as heavy as > 3 TeVMeasurements from more ensembles at different volumes, β ’s andm’s are available and accumulating

4 6 8 10 12 14 16 18 20 22

r=|x-y|

1e-14

1e-13

1e-12

1e-11

-<q(x

)q(y

)>

tf=5.0

563x96, β=3.2000, m=0.001

4 6 8 10 12 14 16 18 20 22

r=|x-y|

1e-14

1e-13

1e-12

1e-11

-<q(x

)q(y

)>

tf=5.0

563x96, β=3.2000, m=0.0015

4 6 8 10 12 14 16 18 20

r=|x-y|

1e-14

1e-13

1e-12

1e-11

-<q(x

)q(y

)>

tf=5.0

563x96, β=3.2000, m=0.002

Further analysis:The effects of finite volume and fixed topologyCross-check by time-slice-to-time-slice correlator

lim|x4−y4|→large

−∑~x ,~y〈q(x)q(y)〉 ∝ e−Mη |x4−y4|

The mixing between η and pseudoscalar glueball

13 / 15

Page 48: Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson H N2 f 4massless BSM-p’s somehow gains masses from additional interactions, but

Selected newresults from theSpectroscopy

in the sextet BSMModel

Chik Him (Ricky)Wong

Outline

Review

η Spectroscopy

Correlator construction

Improvement usingGradient Flow

Preliminary Results

Conclusion

Preliminary ResultsPreliminary Results

Mη can be as heavy as > 3 TeVMeasurements from more ensembles at different volumes, β ’s andm’s are available and accumulating

4 6 8 10 12 14 16 18 20 22

r=|x-y|

1e-14

1e-13

1e-12

1e-11

-<q(x

)q(y

)>

tf=5.0

563x96, β=3.2000, m=0.001

4 6 8 10 12 14 16 18 20 22

r=|x-y|

1e-14

1e-13

1e-12

1e-11

-<q(x

)q(y

)>

tf=5.0

563x96, β=3.2000, m=0.0015

4 6 8 10 12 14 16 18 20

r=|x-y|

1e-14

1e-13

1e-12

1e-11

-<q(x

)q(y

)>

tf=5.0

563x96, β=3.2000, m=0.002

Further analysis:The effects of finite volume and fixed topologyCross-check by time-slice-to-time-slice correlator

lim|x4−y4|→large

−∑~x ,~y〈q(x)q(y)〉 ∝ e−Mη |x4−y4|

The mixing between η and pseudoscalar glueball

13 / 15

Page 49: Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson H N2 f 4massless BSM-p’s somehow gains masses from additional interactions, but

Selected newresults from theSpectroscopy

in the sextet BSMModel

Chik Him (Ricky)Wong

Outline

Review

η Spectroscopy

Correlator construction

Improvement usingGradient Flow

Preliminary Results

Conclusion

Preliminary ResultsPreliminary Results

Mη can be as heavy as > 3 TeVMeasurements from more ensembles at different volumes, β ’s andm’s are available and accumulating

4 6 8 10 12 14 16 18 20 22

r=|x-y|

1e-14

1e-13

1e-12

1e-11

-<q(x

)q(y

)>

tf=5.0

563x96, β=3.2000, m=0.001

4 6 8 10 12 14 16 18 20 22

r=|x-y|

1e-14

1e-13

1e-12

1e-11

-<q(x

)q(y

)>

tf=5.0

563x96, β=3.2000, m=0.0015

4 6 8 10 12 14 16 18 20

r=|x-y|

1e-14

1e-13

1e-12

1e-11

-<q(x

)q(y

)>

tf=5.0

563x96, β=3.2000, m=0.002

Further analysis:The effects of finite volume and fixed topologyCross-check by time-slice-to-time-slice correlator

lim|x4−y4|→large

−∑~x ,~y〈q(x)q(y)〉 ∝ e−Mη |x4−y4|

The mixing between η and pseudoscalar glueball

13 / 15

Page 50: Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson H N2 f 4massless BSM-p’s somehow gains masses from additional interactions, but

Selected newresults from theSpectroscopy

in the sextet BSMModel

Chik Him (Ricky)Wong

Outline

Review

η Spectroscopy

Correlator construction

Improvement usingGradient Flow

Preliminary Results

Conclusion

Preliminary ResultsPreliminary Results

Mη can be as heavy as > 3 TeVMeasurements from more ensembles at different volumes, β ’s andm’s are available and accumulating

4 6 8 10 12 14 16 18 20 22

r=|x-y|

1e-14

1e-13

1e-12

1e-11

-<q(x

)q(y

)>

tf=5.0

563x96, β=3.2000, m=0.001

4 6 8 10 12 14 16 18 20 22

r=|x-y|

1e-14

1e-13

1e-12

1e-11

-<q(x

)q(y

)>

tf=5.0

563x96, β=3.2000, m=0.0015

4 6 8 10 12 14 16 18 20

r=|x-y|

1e-14

1e-13

1e-12

1e-11

-<q(x

)q(y

)>

tf=5.0

563x96, β=3.2000, m=0.002

Further analysis:The effects of finite volume and fixed topologyCross-check by time-slice-to-time-slice correlator

lim|x4−y4|→large

−∑~x ,~y〈q(x)q(y)〉 ∝ e−Mη |x4−y4|

The mixing between η and pseudoscalar glueball

13 / 15

Page 51: Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson H N2 f 4massless BSM-p’s somehow gains masses from additional interactions, but

Selected newresults from theSpectroscopy

in the sextet BSMModel

Chik Him (Ricky)Wong

Outline

Review

η Spectroscopy

Correlator construction

Improvement usingGradient Flow

Preliminary Results

Conclusion

ConclusionConclusion

The sextet model remains an interesting candidate model ofComposite Higgs scenario (More details can be found on JuliusKuti’s talk on Mon)More comprehensive and better analysis tools , e.g. mixed actionanalysis, are being developedSextet Mη is extracted from the topological charge densitycorrelator after Wilson Gradient FlowSextet Mη appears to be heavy, and further investigation is ongoing

14 / 15

Page 52: Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson H N2 f 4massless BSM-p’s somehow gains masses from additional interactions, but

Selected newresults from theSpectroscopy

in the sextet BSMModel

Chik Him (Ricky)Wong

Outline

Review

η Spectroscopy

Correlator construction

Improvement usingGradient Flow

Preliminary Results

Conclusion

ConclusionConclusion

The sextet model remains an interesting candidate model ofComposite Higgs scenario (More details can be found on JuliusKuti’s talk on Mon)More comprehensive and better analysis tools , e.g. mixed actionanalysis, are being developedSextet Mη is extracted from the topological charge densitycorrelator after Wilson Gradient FlowSextet Mη appears to be heavy, and further investigation is ongoing

14 / 15

Page 53: Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson H N2 f 4massless BSM-p’s somehow gains masses from additional interactions, but

Selected newresults from theSpectroscopy

in the sextet BSMModel

Chik Him (Ricky)Wong

Outline

Review

η Spectroscopy

Correlator construction

Improvement usingGradient Flow

Preliminary Results

Conclusion

ConclusionConclusion

The sextet model remains an interesting candidate model ofComposite Higgs scenario (More details can be found on JuliusKuti’s talk on Mon)More comprehensive and better analysis tools , e.g. mixed actionanalysis, are being developedSextet Mη is extracted from the topological charge densitycorrelator after Wilson Gradient FlowSextet Mη appears to be heavy, and further investigation is ongoing

14 / 15

Page 54: Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson H N2 f 4massless BSM-p’s somehow gains masses from additional interactions, but

Selected newresults from theSpectroscopy

in the sextet BSMModel

Chik Him (Ricky)Wong

Outline

Review

η Spectroscopy

Correlator construction

Improvement usingGradient Flow

Preliminary Results

Conclusion

ConclusionConclusion

The sextet model remains an interesting candidate model ofComposite Higgs scenario (More details can be found on JuliusKuti’s talk on Mon)More comprehensive and better analysis tools , e.g. mixed actionanalysis, are being developedSextet Mη is extracted from the topological charge densitycorrelator after Wilson Gradient FlowSextet Mη appears to be heavy, and further investigation is ongoing

14 / 15

Page 55: Selected new results from the Spectroscopy in the sextet ... · 0 is identified as the Higgs boson H N2 f 4massless BSM-p’s somehow gains masses from additional interactions, but

Selected newresults from theSpectroscopy

in the sextet BSMModel

Chik Him (Ricky)Wong

Outline

Review

η Spectroscopy

Correlator construction

Improvement usingGradient Flow

Preliminary Results

Conclusion

12 12.5 13 13.5 14 14.5rmin

0

0.1

0.2

0.3

0.4

0.5

mfi

t(rm

in)

tf=4.0

643x96, β=3.2500, m=0.001, r

max=20

15 / 15