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Monte Carlo Simulation of DY signal using standard Compass software: very preliminary results M. Chiosso Drell –Yan meeting, Dubna, 14/12/2006.

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Presentation on theme: "Monte Carlo Simulation of DY signal using standard Compass software: very preliminary results M. Chiosso Drell –Yan meeting, Dubna, 14/12/2006."— Presentation transcript:

1 Monte Carlo Simulation of DY signal using standard Compass software: very preliminary results M. Chiosso Drell –Yan meeting, Dubna, 14/12/2006

2 MC Simulation chain  Drell-Yan dimuon events generation with Bianconi’s generator DY_AB5 output file.dat with energy,  for both  and  in LAB Ref system  Conversion of generated data to a format readable from ComGeant 3. Processing of generated data with ComGeant: muon run spectrometer with smaller target (see Laura’s talk) 4. Reconstruction of simulated events with Coral To do

3 Generated events  - beam on transversely polarized NH 3 target (spin along LAB +y)  1.0 GeV/c < P T < 10.0 GeV/c  -1 < X f < +1  Generated events per each file with, respectively : 1. S=100 (P  - = 53 GeV /c) a. 1.0 GeV <= M  <= 9.0 GeV b. 1.5 GeV <= M  <= 2.5 GeV c. 4 GeV <= M  <= 9 GeV 2. S=200 (P  = 106 GeV /c) a. 0.0 GeV <= M  <= 9.0 GeV b. 1.5 GeV <= M  <= 2.5 GeV c. 4.0 GeV <= M  <= 9.0 GeV 3. S=300 (P  - = 160 GeV /c) a. 0.0 GeV <= M  <= 9.0GeV   Processed so far, with ComGeant, events per each generated file

4 MW1 and MW2 acceptance Total acceptance =  in MW1 +  in MW2 +  in MW1 and  in MW2

5 Vertex coordinates Vertex distribution mm

6 MW1 and MW2 acceptance Total acceptance =  in MW1 +  in MW2 +  in MW1 and  in MW2 Q2Q2 Pt Xf generated   in MW1  in MW2  in MW1,  in MW2 67.5% 2.5% 30%

7 53 GeV  - beam (S=100) 1.0 GeV <= M  <= 9.0 GeV Generated eventsEvents inside acceptance Q2Q2 PtXfPl Anglex2 vs x1  E  vs E 

8 53 GeV  - beam (S=100) 1.5 GeV <= M  <= 2.5 GeV Q2Q2 PtXfPl Anglex2 vs x1  E  vs E 

9 53 GeV  - beam 4.0 GeV <= M  <= 9.0 GeV Q2Q2 PtXfPl Anglex2 vs x1  E  vs E 

10 53 GeV  - beam 1.0 GeV <= M  <= 9.0 GeV Acceptance

11 53 GeV  - beam 1.5 GeV <= M  <= 2.5 GeV

12 53 GeV  - beam 4.0 GeV <= M  <= 9.0 GeV

13 106 GeV  - beam (S=200) 0.0 GeV <= M  <= 9.0 GeV Generated eventsEvents inside acceptance Q2Q2 PtXfPl Anglex2 vs x1  E  vs E 

14 106 GeV  - beam 1.5 <= M  <= 2.5 

15 106 GeV  - beam 4.0 <= M  <= 9.0 Q2Q2 PtXfPl Anglex2 vs x1  E  vs E 

16 106 GeV  - beam 0 <= M  <= 9 Acceptance S200 Acceptance

17 106 GeV  - beam 1.5 <= M  <= 2.5

18 106 GeV  - beam 4.0 <= M  <= 9.0

19 160 GeV  - beam (S=300) 0.0 <= M  <= 9.0 Generated eventsEvents inside acceptance Q2Q2 PtXfPl Anglex2 vs x1  E  vs E 

20 160 GeV  - beam 0.0 <= M  <= 9.0

21 53 GeV  - beam Generated Inside A 1.5<=M  <= <=M  <= GeV  - beam Generated Inside A 1.5<=M  <= <=M  <= GeV  - beam Generated Inside A 1.5<=M  <= <=M  <= Selection of events out from resonances region


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