Geant4InputHandling: Treat Ions with Excitation Energy?

[andresailer]

Hi @espadaro1,

When I try this locally with the hepmc file from #918 I get a terrible crash at the end, I am not sure if this is because of my setup, or something else going wrong.

Could you try this patch in your local installation? I hope I find some more time to test this myself as well.

Updated following #935

BEGINRELEASENOTES

• DDG4: Geant4InputHandling: Try to address the simulation of Excited Ions. Print a warning if we encounter excited Ions that Geant4 cannot handle. Waiting for something else to provide the excitation energy information that is needed in this case. Fixes HepMC3 reader with Pythia8 Argantyr generator: status checker not implemented #918 and Propagation of ions #1051
• DDSim: Catch and log exceptions for physics/userFunctions.

ENDRELEASENOTES

[andresailer]

Test with the hepmc file is failing here as well, so something else is broken probably.

[andresailer]

Have to ignore exceptions in the test

  -------- WWWW ------- G4Exception-START -------- WWWW -------
  *** G4Exception : PART5107
        issued by : G4IonTable::FindIon()
  Isomer level 9 may be ambiguous.
  *** This is just a warning message. ***
  -------- WWWW -------- G4Exception-END --------- WWWW -------

[andresailer]

This change also affects other cases where suddenly ions start showing up. :/

[andresailer]

This needs a better solution for the tests.