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Home » PANDA » PandaRoot » Analysis » [FIXED] Problems with photon reconstruction in pandaroot
Re: Problems with photon reconstruction in pandaroot [message #15458 is a reply to message #15449] Sat, 07 September 2013 00:23 Go to previous message
StefanoSpataro is currently offline  StefanoSpataro
Messages: 2736
Registered: June 2005
Location: Torino
first-grade participant

From: 2.235.190*
I have tried with my trunk 21608.
If i use the macro as it is, to run 100 events it takes a lot of time, something like 7 minutes.
Using an energy selector from 20 MeV, as suggested by Klaus:

theAnalysis->FillList(gammas, "Neutral");
double E_min = 0.02; // your energy threshold
RhoEnergyParticleSelector *GamEnSel=new RhoEnergyParticleSelector("gam",E_min+50.,100.);
gammas.Select(GamEnSel);


less than 20 seconds. It removes a lot of low momentum background.



 
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