Plots for "Performance study of the level-1 di-muon trigger" CSC book chapter
Introduction
This page contains all plots in the CSC note "Production Cross-Section Measurements and Study of the Properties of the Exclusive B
+→J/Ψ K
+ Channel" which forms a chapter of the CSC book "Expected Performance of the ATLAS Experiment Detector, Trigger, Physics", CERN-OPEN-2008-020, arXiv:0901.0512.
Plots
Figure 1: J/ψ invariant mass distribution with a Gaussian fit superimposed.
Figure 2: Invariant mass M(K
+ μ
+μ)
- distribution with the B
+ mass peak for signal (red) and combinatorial b - bbar background (blue).
Figure 3: B
+ mass fit with the both signal (red) and background (blue) contributions shown separately.
(a) 10<=p
T<18
GeV (b) 18<=p
T<26
GeV
(c) 26<=p
T<34
GeV (d) 34<=p
T<42
GeV.
Figure 4: Fit of the B
+ mass in various p
T ranges.
Figure 5. B
+ lifetime fit (left) with the signal (dashed red) and the background (dashed black) contributions shown separately and B
+ lifetime resolution (right).
Tables
Table 1: Monte Carlo data set used for the B
+ study. The N
gen(B
+-> J/ψ K
+) events are the ones contained in the whole generated sample.
Table 2: J/ψ reconstruction efficiencies with and without λ cut.
Table 3: Efficiency A and B
+ mass width σ(B
+) for the various p
T bins.
Table 4: Overall efficiency and B
+ mass width for all B
+ with p
T>10
GeV.
Table 5: Results for the lifetime fit
Table 6: Statistical and total uncertainties for the B
+ -> J/ψ K
+ differential and total cross-section measurements for an integrated luminosity of 0.01 fb
-1. Total uncertainties include luminosity and BR systematic uncertainties.
Major updates:
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IoannisNomidis - 27 Mar 2009
Responsible:
IoannisNomidis
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