μ̃, ẽ and ν̃ Benchmark Status 1.4 TeV

WG6, J-J.Blaising, LAPP/IN2P3 124 April 2012

, e and μ ν Benchmark Status1.4 TeV

• , e and μ ν Production Status

• ν performance plots

• Discriminating variables, S+B plots, mass determination, fit results, assuming L=2 ab¯¹


Benchmarkμ Production StatusProcess σx Br

fbEvents

generatedL

fb⁻¹EventsPre-sel

MokkaMarlin

e⁻ e⁺-> ⁻ μ μ⁺ 1.53 5. 0x10⁴ 32700 50000 Y/Y

SUSY-μ⁻ ⁺μ 2.61 1.0x10⁶ 23780 60000 Y/Y

e⁻ e⁺-> μ⁻ μ⁺ 0.73 5 .0x10⁶ 34000 25000 Y/Y

e⁻ e⁺-> μ⁻ μ⁺ ν eνe 2.2 1.0x10⁶ 21800 48000 Y/Y

e⁻ e⁺-> μ⁻ μ⁺ μν νμ

6.3 5.0x10⁵ 34000 200000 Y/Y

e⁻ e⁺-> W⁻ W⁺ ν ν 0.72 1.0x 10⁶ 34000 24700 Y/Y

e⁻ e⁺-> μ⁻ μ⁺ e¯e⁺ 25.6 10.0x 10⁶ 5600 143000 New Y/Y

e⁻ e⁺-> Z⁻ Z⁺ ν ν 0.0007 1.0x10⁵ 10000 7 Negligible

γγ -> μ¯μ⁺ 1.0x10⁵ 0

~18x10⁶ 540 000

50000 μ produced with γγ -> h overlaid


e Benchmark Production StatusProcess σx Br

fbEvents

generatedL

fb⁻¹EventsPre-sel

MokkaMarlin

e⁻ e⁺-> e⁻ e⁺ 5.91 1.0x 10⁵ 16900 100000 Y/Y

SUSY-e⁻ e 2.61 1.0x 10⁶ 23780 60000 Y/Y

e⁻ e⁺-> e⁻ e⁺ 95.5 25.0x 10⁶ 1175 110000 Y/Y

e⁻ e⁺-> e⁻ e⁺ 95.5 50.0x 10⁶ 2350 220000 New Y/Y

e⁻ e⁺-> e⁻ e⁺ ν ν 96.5 5. 0x10⁵ 2400 240000 Y/Y

e⁻ e⁺-> e⁻ e⁺ ν ν 96.5 5. 0x10⁵ 2400 240000 New Y/Y

e⁻ e⁺-> W⁻ W⁺ ν ν 0.72 1.0x 10⁶ 34000 24700 Y/Y

e⁻ e⁺-> Z⁻ Z⁺ ν ν 0.0007 1.0x10⁵ 10000 5 Negligible

~26x10⁶ 995000

100000 e produced with γγ -> h overlaid


Benchmarkν Production StatusProcess σ

fb σx

Br(2L+4J) fb

Events MokkaMarlin

e⁻ e⁺-> νe νe -> e¯ e⁺ ¯₁χ ⁺₁χ -> e¯ e⁺ W¯ W ⁺ ⁰₁ ⁰₁χ χ

5.37 1.48 10⁵ Y/Y

e⁻ e⁺-> e⁻ e⁺ (L) -> e¯ e⁺ ₂χ ⁰₂χ -> e¯ e⁺ h⁰ h⁰ ⁰₁ ⁰₁χ χ

0.73 0.056 10⁵ Y/Y

e⁻ e⁺-> W W Z

54.7 1.31 10⁶ Y/Y

e⁻ e⁺-> ZZZ

0.83 0.03 10⁵ Y/Y

e⁻ e⁺-> WWZZ 0.62 0.001 10⁵ Y/Y

e⁻ e⁺-> All other Susy processes -

32.9 3.94 6.10⁵ Y/Y

Preselection cuts applied on background samples, 10⁵ ν produced with γγ -> h overlaid


, dN/dE and dN/dν θ (e±)

2L4J reconstruction, with Kt=1 and Ejet min=10 GeV, εR=19%, εRxBR=5%dN/dE (e±) with γγ->h overlaid , photon radiation correction, (left), Eγ min=2.5 GeVdN/dθ (e±) with γγ->h overlaid , photon radiation correction, (right) Good agreement of reconstructed variables with MC True distributions


, dN/d(ΔE/E²) (e±) ν

dN/ d(ΔE/E²) (e±) without and with γγ->h overlaid, loose cuts (left): <> shift dN/d(ΔE/E²) (e±) without and with γγ->h overlaid, tight cuts (right):Tight cuts => central value restored and energy resolution preserved =>Innefficency =7%


, dN/d(ΔE/E²) and dN/dMν

dN/d(ΔE/E²) (e±) with γγ->h overlaid, tight cuts, fit (left): rms G1=1.7.10¯⁵, rms G2=1.10¯⁴ Resolution function used for the mass determination dN/dM (Di-Jet) with γγ->h overlaid, tight cuts (right): rms of convoluted Gaussian, 4.7 GeV without γγ and 6.0 with γγ-> overlaid , <Ej>~60 GeVAt 3 TeV, 4.1 GeV without γγ and 4.7 with γγ-> overlaid , <Ej>~180 GeV

WG6, J-J.Blaising, LAPP/IN2P3 8

, Discriminating Variablesμ

24 April 2012

Distribution of the most discriminating observables for μ benchmark.Same variables used for the other channels


, dN/dE (S+B) μ

24 April 2012

dN/dE (S+B) distribution: without BDT cut (left), e⁻ e⁺-> μ⁻ μ⁺ e¯e⁺ is the dominant background with BDT cut (right), the other SM processes are the dominant


and μ ₁⁰χ Masses

24 April 2012

dN/dE distribution after background subtraction mμ = 560.84 ± 0.70 GeV (stat) ± 1.0 GeV (background subtraction), (mtrue=559 GeV) m ₁⁰χ = 357.88 ± 0.46 GeV (stat) ± 1.3 GeV (background subtraction), (mtrue=357 GeV) σ = 1.501± 0.03 fb (stat)


e dN/dE (S+B)

24 April 2012

dN/dE distribution: without BDT cut (left), SM processes are dominant backgrounds with BDT cut (right), e⁺e¯νe νe and other susy processes are dominant


e and ₁⁰χ Masses

24 April 2012

dN/dE distribution after background subtraction me = 556.86 ± 0.53 GeV (stat) ± 1.5 GeV (background subtraction), (mtrue=559 GeV) m ₁⁰χ = 356.04 ± 0.47 GeV (stat) ± 1.3 GeV (background subtraction), (mtrue=357 GeV) σ = 5.88± 0.05 fb (stat)


dN/dE (S+B)ν

24 April 2012

dN/dE distribution: without BDT cut (left), eL and other susy processes are dominant backgrounds with BDT cut (right), the tails of other susy processes are reduced


and ν ₁±χ Masses

24 April 2012

dN/dE distribution after background subtraction mν = 644.3 ± 14.2 GeV (stat) , (mtrue=644 GeV) m ₁±χ = 487.6 ± 11.7 GeV ( stat) , (mtrue=487 GeV) σ = 5.16± 0.23 fb (stat)

15

Summary

24 April 2012 WG6, J-J.Blaising, LAPP/IN2P3

• μ and e and ν signal and SM background data production finished.• Pt cut or PFO tight cuts removes γγ -> h background => analysis done without overlay on SM background• Lepton resolution functions as expected, ΔE/E² ~ 2x10¯⁵ for 2L or 2L4J final states• mass and cross section determination: mμ = 560.84 ± 0.70 GeV (stat) ± 1.0 GeV (background subtraction) m ₁⁰χ = 357.88 ± 0.46 GeV (stat) ± 1.3 GeV (background subtraction) σ = 1.51 ± 0.03 fb (stat) me = 556.86 ± 0.53 GeV (stat) ± 1.5 GeV (background subtraction) m ₁⁰χ = 356.04 ± 0.47 GeV (stat) ± 1.3 GeV (background subtraction) σ = 5.88± 0.05 fb (stat)

mν = 644.3 ± 14.2 GeV (stat) m ₁±χ = 487.6 ± 11.7 GeV ( stat) σ = 5.16± 0.23 fb (stat)

μ̃, ẽ and ν̃ Benchmark Status 1.4 TeV

Documents

Transcript of μ̃, ẽ and ν̃ Benchmark Status 1.4 TeV