[Frost] About the bad TOP paddles for the double pion photo-production

[Park, Sungkyun]

Hi Eugene,

Now I am checking the bad TOP paddles for the double pion photo-production using the Steffen's way.
The double pion data has the 3 final state ( There is no missing particle) or 2 final state (There is one missing particle such as pi+, pi-, or proton).
The events I used have two or three final particles.

Steffen used the information of SCPB bank and I checked that bank.

I have a question in this step.
In the following event, SCPB has two informations.
Can I think that in the SCPB bank, the line with ScPdHt 23301  is for proton and the line with ScPdHt 433001 is for pi+?
Because SCPB bank do not has the pid, I can not distinguish each other in the bank.

_______________________________________________________________________________________________

Group:  GPID    Sector: 1       Nhits:  2       Next ind:       0
pid:     14 (proton)
   vert->       x: 0.000        y: -1.008       z: 15.925
   p->          E: 1.045        px: -0.372      py: 0.003       pz: 0.271
   q:   1       trkid:   1      sec:   4        paddle:  30
   dedx: 42.547 beta: 0.441
   sc_stat:   2 sc_time: 49.653         sc_len: 464.393
   st_stat:   1 st_time: 14.307         st_len: 11.686
   mass: 0.960  mass_ref:   0   betam: 0.432
   epho: 0.490  tpho: 13.303    tagrid:   1     ngrf:   1       ppid:  14
pid:      8 (pi+)
   vert->       x: -0.201       y: 0.116        z: 16.987
   p->          E: 0.233        px: 0.075       py: 0.076       pz: 0.153
   q:   1       trkid:   2      sec:   2        paddle:  33
   dedx: 14.097 beta: 0.801
   sc_stat:   2 sc_time: 35.200         sc_len: 510.424
   st_stat:   1 st_time: 14.398         st_len: 11.112
   mass: 0.141  mass_ref:   0   betam: 0.798
   epho: 0.490  tpho: 13.303    tagrid:   1     ngrf:   1       ppid:   8

Group:  SCPB    Sector: 0       Nhits:  2       Next ind:       0
ScPdHt: 23301  Edep: 14.097  Time: 35.200  Path: 510.424  Chi2SC: 8.005  Status:  33
ScPdHt: 43001  Edep: 42.547  Time: 49.653  Path: 464.393  Chi2SC: 4.639  Status:  33
_______________________________________________________________________________________________

Best Wishes

Sung
Florida State University


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