GSI Forum
GSI Helmholtzzentrum für Schwerionenforschung

Home » PANDA » PandaRoot » Tracking » One question about tracking efficiency
Re: One question about tracking efficiency [message #10574 is a reply to message #10567] Thu, 22 April 2010 14:42 Go to previous messageGo to previous message
Yutie Liang is currently offline  Yutie Liang
Messages: 12
Registered: April 2010
Location: Germany
occasional visitor
From: *physik.uni-giessen.de
Hi,

I tried with your new code, which I saw the conversion of cm/mm.
It does improve my result, but not very much.

I only tested with 200 events, and got 12 signals. I will test with more statistic later.
The total efficiency of this channel ~ 6%, is better than the former 3-4%. It's still too low.

I think there could be some other prolems.
I listed the tracks info of several events.
To survive the analysis program, the MctrackID should contain 0,1,2,3,4,5 at least. In the following, only event 194 passed this, but failed the mass cut.

-------------------------------------------------
event: 194
mom: (-0.276957, 0.489483, 1.41229) MctrackID: 4
mom: (0.547624, -0.518, 1.18875) MctrackID: 3
mom: (4.74344, 1.18262, 3.54849) MctrackID: 2
mom: (1.73905, 0.298494, 2.67836) MctrackID: 2
mom: (-0.890036, -0.0107261, 1.80312) MctrackID: 1
mom: (-0.100752, -0.205479, 0.654262) MctrackID: 5
mom: (-0.127335, -0.0098834, 0.799576) MctrackID: 0
mass of dp: 5.29566
mass of dp: 3.10414
mass of dm: 1.78799
dp: 0 dm: 1
event: 195
mom: (-0.714914, -0.0269411, 0.979918) MctrackID: 4
mom: (0.779887, -0.125705, 1.85668) MctrackID: 3
mom: (0.259352, 0.166287, 1.226) MctrackID: 2
mom: (0.397058, -0.224433, 0.460777) MctrackID: 0
mom: (-0.0066277, -0.179322, 0.835163) MctrackID: 1
event: 196
mom: (0.757172, 0.107102, 1.45513) MctrackID: 5
mom: (-0.269729, -0.0472028, 0.835738) MctrackID: 4
mom: (-0.0532711, -0.646725, 1.03129) MctrackID: 0
mom: (1.77291, 2.69191, 3.89288) MctrackID: 2
mom: (0.625281, 0.877034, 0.994429) MctrackID: 2
mom: (-2.25023, -0.892301, 1.50073) MctrackID: 2
mom: (0.298023, 0.639753, 1.01819) MctrackID: 2
mom: (-0.176344, 0.110833, 0.639549) MctrackID: 4
mom: (-0.100674, -0.0839868, 0.826197) MctrackID: 1
event: 197
mom: (0.366878, -0.291604, 1.02965) MctrackID: 5
mom: (-0.346555, 0.366326, 0.323261) MctrackID: 4
mom: (0.0505044, -0.0861833, 0.401847) MctrackID: 1
mom: (5.3789, -1.86377, 11.1783) MctrackID: -1
event: 198
mom: (-0.346544, 0.413518, 1.98112) MctrackID: 3
mom: (0.0704105, -0.270733, 0.279589) MctrackID: 4
mom: (1.74562, 0.732808, 5.13812) MctrackID: 2
event: 199
mom: (-0.186931, -0.370772, 0.620371) MctrackID: 4
mom: (0.232215, -0.590434, 1.37189) MctrackID: 0
mom: (0.386676, 5.02008, 2.315) MctrackID: 5
event: 200
mom: (0.569166, 0.378718, 1.23879) MctrackID: 5
mom: (-0.406435, -0.291732, 1.41973) MctrackID: 4
mom: (-76.9758, -12.678, 384.064) MctrackID: 0
mom: (0.274015, 1.52483, 0.010232) MctrackID: 2
mom: (-0.126436, -0.296277, 0.736622) MctrackID: 3
---------------------------------------------------------


regards
 
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Previous Topic: Reco hit production with two inputs.
Next Topic: [FIXED]A crash in reco
Goto Forum:
  


Current Time: Sun Oct 17 06:26:16 CEST 2021

Total time taken to generate the page: 0.02396 seconds