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Revision 82010-12-06 - ElmarRitsch

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Plots for "Performance study of the level-1 di-muon trigger" CSC book chapter

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Revision 72010-06-02 - PatrickJussel

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Revision 62010-05-10 - PatrickJussel

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Plots for "Performance study of the level-1 di-muon trigger" CSC book chapter

Revision 52009-11-24 - PatrickJussel

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META TOPICPARENT name="BPhysCSCPlots"
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S.Haywood at rl.ac.uk (or failing that, edward.moyse at cern.ch)
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Plots for "Performance study of the level-1 di-muon trigger" CSC book chapter

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Revision 42009-04-24 - IoannisNomidis

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META TOPICPARENT name="BPhysCSCPlots"
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Introduction

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Plots

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jpsi_mass.gif

Figure 1: J/ψ invariant mass distribution with a Gaussian fit superimposed.



 
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Figure 1: Invariant mass M(K+ μ+μ)- distribution with the B+ mass peak for signal (red) and combinatorial b - bbar background (blue).
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Figure 2: Invariant mass M(K+ μ+μ)- distribution with the B+ mass peak for signal (red) and combinatorial b - bbar background (blue).
 
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B+_mass_staco.gif
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Figure 2: B+ mass fit with the both signal (red) and background (blue) contributions shown separately.
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  (c) 26<=pT<34 GeV (d) 34<=pT<42 GeV.
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Figure 3: Fit of the B+ mass in various pT ranges.
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Figure 4: Fit of the B+ mass in various pT ranges.
 
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Figure 4. B+ lifetime fit (left) with the signal (dashed red) and the background (dashed black) contributions shown separately and B+ lifetime resolution (right).
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Figure 5. B+ lifetime fit (left) with the signal (dashed red) and the background (dashed black) contributions shown separately and B+ lifetime resolution (right).
 



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Tables

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Table 1: Monte Carlo data set used for the B+ study. The Ngen(B+-> J/ψ K+) events are the ones contained in the whole generated sample.
 



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Table 2: J/ψ reconstruction efficiencies with and without λ cut.
 



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Table 3: Efficiency A and B+ mass width σ(B+) for the various pT bins.
 



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Table 4: Overall efficiency and B+ mass width for all B+ with pT>10 GeV.
 



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Table 5: Results for the lifetime fit
 



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t6.jpeg

 
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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.
 
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Revision 32009-03-31 - IoannisNomidis

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META TOPICPARENT name="BPhysCSCPlots"
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Introduction

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B+_mass_staco.gif
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Figure 1: B+ mass fit with the both signal (red) and background (blue) contributions shown separately.
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B+_mass_staco_10_18.gif B+_mass_staco_18_26.gif

(a) 10<=pT<18 GeV (b) 18<=pT<26 GeV

B+_mass_staco_26_34.gif B+_mass_staco_34_42.gif

(c) 26<=pT<34 GeV (d) 34<=pT<42 GeV.

Figure 3: Fit of the B+ mass in various pT ranges.

 



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Revision 22009-03-28 - IoannisNomidis

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META TOPICPARENT name="BPhysCSCPlots"
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effPt.gif
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overlay+bkg.gif

Figure 1: Invariant mass M(K+ μ+μ)- distribution with the B+ mass peak for signal (red) and combinatorial b - bbar background (blue).



B+_mass_staco.gif

Figure 1: B+ mass fit with the both signal (red) and background (blue) contributions shown separately.









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Revision 12009-03-27 - IoannisNomidis

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META TOPICPARENT name="BPhysCSCPlots"
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Please modify it in the sections indicated to create your topic! In particular, notice that at the bottom there are some sections that must be filled for publicly accessible pages.
If you have any comments/complaints about this template, then please email : Stephen Haywood (Computing Documentation Coordinator)
S.Haywood at rl.ac.uk (or failing that, edward.moyse at cern.ch)
-->

<!-- By default the title is the WikiWord used to create this topic !-->
<!-- if you want to modify it to something more meaningful, just replace BPhysCSCPlots11 below with i.e "My Topic"!-->
<!---------------------------------------------------------  snip snip ----------------------------------------------------------------->

Plots for "Performance study of the level-1 di-muon trigger" CSC book chapter

<!--optional-->

<!--  
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Introduction

<!-- Add an introduction here, describing the purpose of this topic. !-->
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

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effPt.gif

Figure 1:

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<!--For significant updates to the topic, consider adding your 'signature' (beneath this editing box)-->
Major updates:
-- IoannisNomidis - 27 Mar 2009

<!--Person responsible for the page: 
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Responsible: IoannisNomidis
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