Problem 467 - PDG Encoding
Summary: PDG Encoding
Status: RESOLVED INVALID
Alias: None
Product: Geant4
Classification: Unclassified
Component: particles (show other problems)
Version: other
Hardware: Other Linux
: P2 normal
Assignee: kurasige
URL:
Depends on:
Blocks:
 
Reported: 2003-03-17 14:50 CET by tumakov
Modified: 2003-03-17 14:56 CET (History)
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Description tumakov 2003-03-17 14:50:14 CET 
I'm using geant4.5.0.p01.

These lines work perfect:
 G4ParticleDefinition * particleType = aTrack->GetDefinition();
  G4String particleName = particleType->GetParticleName();

I have correct particle name for any particle, but

 particleType->GetPDGEncoding()

gives correct particle code only for selected particles:
=11 for electron
=-11 for positron
=13 for mu-
=-13 for mu+
2212 for proton
probably correct codes for neutrinos.

For heavy particles (D,T,He3,alpha)  particleType->GetPDGEncoding()
returns zero.

The behavior is the same in my own simulation and
in examples lAr_calorimeter,underground_physics.

Do you have any idea what is wrong?

Best regards, Vladimir Tumakov
Comment 1 Makoto.Asai 2003-03-17 14:56:59 CET 
PDG encoding convention does not cover nuclei.
Thus the return values for nuclei are zeros.
Note that zero is not used by PDG encoding convention.
By the same reason, artificial particles such as
geantino return zeros as well.