Draft: Efficiency Check for LL with loose IPCHI2 cut for hadron final state.
Efficiency Check for LL with loose IPCHI2 cut for hadron final state.
For these two channel:
B2JpsiKS0 Lb2JpsiLambda
Preselections Lists:
Lb2JpsiLambda:
| Variable | Cut. |
|---|---|
| Lb DIRA | > 0.999 |
| Lb IPCHI2 | < 16 |
| Lb FDCHI2 | < 36 |
| Lb vtxCHI2DOF | < 8 |
| Jpsi mass window | PDG +-60 MeV |
| Jpsi vtxCHI2DOF | < 12 |
| Jpsi FDCHI2. | > 9 |
| Jpsi DIRA | > -0.9 |
| muon ghostprob | < 0.5 |
| Lambda mass window | PDG +- 30 MeV |
| Lambda vtxCHI2 LL(DD) | < 30(25) |
| Lambda lifetime LL | > 2 ps |
| proton p | > 3000 MeV |
| proton pT | > 175 MeV |
| proton IPCHI2 LL(DD) | > 9(1) |
| pion p | > 1500 MeV |
| pion pT | > 100 MeV |
| pion IPCHI2 LL(DD) | > 9(3) |
| open angle | > 0.5 mrad |
B2JpsiKS:
| Variable | Cut. |
|---|---|
| B0 CHI2DOF | < 20 |
| Jpsi DLS | > 3 |
| Jpsi mass window | PDG +- 100 MeV |
| Jpsi CHI2DOF | < 20 |
| KS DLS | > 3 |
| KS vtxCHI2 | < 25 |
| KS mass window | PDG +- 80 MeV |
| Lambda veto | (1100, 1130) MeV |
| pion p | > 2000 MeV |
| pion IPCHI2 LL(DD) | > 9(4) |
| open angle | > 0.5 mrad |
Edited by Fanjie Meng