Fix Xic- name used in geant4 configuration

[fchinu]

Xic- particles were not being properly decayed in Geant4 because xi_c- does not correspond to any particle name in the Geant4 particle table

Tagging @gluparel, @xinyepeng, @stefanopolitano, and @wuctlby since also the charm baryon MC anchored to pp ref is affected

[github-actions]

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[wuctlby]

Hi @fchinu , thanks a lot for the correction. Indeed, the name of xi_c- in Geant4 should be anti_xi_c+. I cross-checked the name in Geant4 with the particle MCid. Sorry, I made a mistake on this. BTW, could you please also correct the name in

O2DPG/MC/config/PWGHF/pythia8/decayer/geant4_externaldecayer_Xic_trigger.in

Line 68 in ec32708

/mcPhysics/setExtDecayerSelection xi_c0 anti_xi_c0 xi_c+ xi_c-

, which also uses the wrong name.

------------------------------------------------
Found xic+ with name 'xi_c+'
PDG code: 4232
anti PDG code: -4232
Found xic- with name 'anti_xi_c+'
PDG code: -4232
------------------------------------------------

[fchinu]

Hi @wuctlby, thanks for spotting this, I had an older version of O2DPG which did not have that file. I fixed it in #2432