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Data/MC Comparison : Cluster energy ratio for different preshower bins

Updated on Tue, 2012-11-27 16:23. Originally created by sdhamija on 2012-11-27 16:23.

Data/MC Comparison : Cluster energy ratio for different preshower bins

Preselection Cuts

(i) z vertex cut -100cm<z<100cm

(ii) Neutral fraction of jet matched to photon >0.9

(iii) cos(phi_gamma - phi_jet)<-0.8

(iv) |eta_jet|<0.8

(v) ptGamma > 7.0 GeV

(vi) ptJet > 5.0 GeV

(vii) 1.08 < eta_gamma<2.0

(viii) Number of hits in each SMD plane > 3

(ix) Away side jet neutral fraction <0.9

First preshower bin                                                                                     Second preshower bin
 

Third preshower bin                                                                                     Fourth preshower bin
 

Preshower bin MC (prompt photon+QCD) counts Data Counts Weight factor
First (pre1=0,pre2=0) 461 391 0.848
Second (pre1=0, pre2>0) 2206 1289 0.584
Third (0<pre1<0.004 GeV) 11482 9253 0.806
Fourth (0.004<pre1<0.01 GeV) 19820 14550 0.734

Note: Prompt photon distributions shown in these plots have also been scaled by these factors.

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