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D0 and D0bar signal from 3 rd Production Jaiby Joseph 03/19/2011.

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Presentation on theme: "D0 and D0bar signal from 3 rd Production Jaiby Joseph 03/19/2011."— Presentation transcript:

1 D0 and D0bar signal from 3 rd Production Jaiby Joseph 03/19/2011

2 D0 Signal -200 0.7,pPi>0.7,chargeK 0, pD0>0.3 S/B ~5.128 * Cut change from 1 st Prod # of Events: ~ 7.5 M

3 D0bar Signal -200 0.7,pPi>0.7,chargeK>0,chargePi 0.3 S/B ~ 5.714

4 D0+D0bar S/B ~ 7.056 S/√S+B ~ 9.639

5 Pseudorapidity Kaon -log(tan(θ/2) Kaon θ = ASin(p T /p) Pion θ = ASin(p T /p) Pion -log(tan(θ/2)

6 D0 Signal with cut on eta -200 0.7,pPi>0.7,chargeK 0, pD0>0.3, |Eta K,pi |<1.0 S/B ~ 4.02

7 Monte Carlo – power law D0

8 Monte Carlo – Track momenta Ppion Vs PtD0 Pkaon Vs PtD0

9 CutS/B No (offline) CutNo Signal 500.7,chargeK 05.348 50 0.7,pPi>0.7,chargeK 0, pD0>0.34.386 -200 0.7,pPi>0.7,chargeK>0,chargePi<05.208 -200 0.7,pPi>0.7,chargeK>0,chargePi 0.35.128 Slide-1 -200 0.5, pPi>0.5, chargeK>0, chargePi 0.3 No Signal -200 0.6, pPi>0.6, chargeK>0, chargePi 0.3 No Signal -200 0.7,pPi>0.7,chargeK>0,chargePi 0.3 |eta|<1 4.02


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