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Re: Mc Truth Match [message #15323 is a reply to message #15322] Fri, 23 August 2013 11:20 Go to previous messageGo to previous message
MartinJGaluska is currently offline  MartinJGaluska
Messages: 203
Registered: March 2010
Location: Germany
first-grade participant
From: *physik.uni-giessen.de
Hello all,

when investigating the problem with Fill List in combination with PidAlgoIdealCharged I ran into another problem:

It seems that "Loose" even fills candidates (in very rare cases) into the list which return a 0 pointer when I try to access GetMcTruth. However, the five charged particle probabilities were set to 0.2.

I noticed that error in a simulation of 20k events with the rho tutorial macros. It happened once there.

In a simulation of 10k events for the (physically impossible) decay corresponding to the dec file quoted below I saw the same error once, too.

Decay psi(2S)
  1.0 	J/psi gamma	PHSP;
Enddecay

End


[PS: I only wanted photons in the events to test how PandaRoot handles them and did not care whether the decay makes any sense or not.]

 
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