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

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

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

D0+D0bar S/B ~ S/√S+B ~ 9.639

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

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

Monte Carlo – power law D0

Monte Carlo – Track momenta Ppion Vs PtD0 Pkaon Vs PtD0

CutS/B No (offline) CutNo Signal 50<dL<400, |D0dcaPV|<300, TrkDca<200 (+ve dL ONLY) <|dL|<400, |D0dcaPV|<300, TrkDca< <|dL|<400, |D0dcaPV|<200, TrkDca< <|dL|<400, |D0dcaPV|<200, TrkDca<200, |EtaD0|< <|dL|<400, TrkDca<200 (No cut on D0dcaPV) < dL < 400, TrkDca < 200, ,pPi>0.7,chargeK ,pPi>0.7,chargeK 0, pD0> ,pPi>0.7,chargeK>0,chargePi< ,pPi>0.7,chargeK>0,chargePi Slide , pPi>0.5, chargeK>0, chargePi 0.3 No Signal , pPi>0.6, chargeK>0, chargePi 0.3 No Signal ,pPi>0.7,chargeK>0,chargePi 0.3 |eta|<1 4.02