Loïc Quertenmont Université catholique de Louvain & FNRS Center for Particle Physics and Phenomenology (CP3) 30 April 2010. dE/dx feedbacks to Simulation. dE/dx Estimator. DataSets /MinimumBias/Commissioning10-Apr1Skim_GOODCOLL-v1/RAW-RECO (run<132514)
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Defines 5 Mass Regions for particles with dEdx>5MeV/cm:Pions: M=[0.00,0.35] GeV/c²Kaons: M=[0.35,0.75] GeV/c²Protons: M=[0.75,1.30] GeV/c²Deuterons: M=[1.30,2.20] GeV/c²HigherMass M=[2.20,infin] GeV/c²
Regions may differs between Data and MC. Since constants K/C are used to delimit the region.
There is: 2.05 times more events in data than in MCand 1.87 times more tracks in data than in MCBut we count 2.55 times more kaons in data than in MCBut we count 2.60 times more protons in data than in MCBut we count 11.6 times more deuterons in data than in MC
RATES Kaon/Protons:Rates MC : 0,15942Rates Data : 0,15627Rates Data / Rates MC = 1,0202
2% more Kaons in data than in MC w.r.t. Protons
All these results are very raw results:
No efficiency taken into account, and so on…SO these numbers shouldn’t be considered to strictly, but just as an indication…