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
WG6, J-J.Blaising, LAPP/IN2P3 224 April 2012
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
WG6, J-J.Blaising, LAPP/IN2P3 324 April 2012
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
WG6, J-J.Blaising, LAPP/IN2P3 424 April 2012
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
WG6, J-J.Blaising, LAPP/IN2P3 524 April 2012
, 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
WG6, J-J.Blaising, LAPP/IN2P3 624 April 2012
, 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%
WG6, J-J.Blaising, LAPP/IN2P3 724 April 2012
, 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
WG6, J-J.Blaising, LAPP/IN2P3 9
, 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
WG6, J-J.Blaising, LAPP/IN2P3 10
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)
WG6, J-J.Blaising, LAPP/IN2P3 11
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
WG6, J-J.Blaising, LAPP/IN2P3 12
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)
WG6, J-J.Blaising, LAPP/IN2P3 13
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
WG6, J-J.Blaising, LAPP/IN2P3 14
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)
Top Related