[EvtGen] #1: Updating Pythia Particle Properties faulty in R01-07-00

[EvtGen]

#1: Updating Pythia Particle Properties faulty in R01-07-00
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  Reporter:  Martin Ritter  |      Owner:  jback
      Type:  defect         |     Status:  accepted
  Priority:  critical       |  Milestone:  R01-08-00
Resolution:                 |   Keywords:
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Comment (by jback):

 The particle properties were not updated since only copies were affected
 not the original data. With the updated code in
 EvtPythiaEngine::updateParticleLists(), Pythia automatically began to list
 all of the particles that changed during initialisation, which was not
 happening before. The "Init:showChangedParticleData = off" was then added
 to suppress this verbose output (it was not needed before because no
 particle properties were actually changed).

 The code has been changed to check the PDG integer codes before updating
 the particle properties, ignoring void (0), nuPrime_tau (18) and
 pseudoparticles (81-100):

 https://evtgen.hepforge.org/trac/changeset/a5270af

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Ticket URL: <https://evtgen.hepforge.org/trac/ticket/1#comment:6>
EvtGen <http://evtgen.hepforge.org/>
EvtGen is a Monte Carlo generator of particle decays, in particular the weak decays of heavy flavour particles such as B mesons.