Strange PDGID on Zee EVT generation

[lucasbanunes]

I generated some zee EVT samples using the gen_zee.py script but when I checked the event, there were PDGID's 0 with the exception with the expected 11 and -11 for electron positron pairs. Checking the PDGID here there seems to ebe no particle with ID 0. Another fact is that the number of zero id's is exactly half the number of entries in the sample. What is going on? Bellow is the image of an hist plot with the PDGID's
@jodafons @micaelverissimo

[jodafons]

PDGID==0 is related for seeds only. check this mechanism: https://github.com/lorenzetti-hep/lorenzetti/blob/master/core/G4Kernel/src/EventReader.cxx#L249 *Laboratório de Processamento de Sinais (LPS) / UFRJ / COPPE* Inteligência Computacional. Inovação Dr. João Victor da Fonseca Pinto | Research Assistant Machine Learning | High Energy Particle Physics | Health | Quantum Computing | Oil Mobile +55 21 99654-2454 | ***@***.*** | Linkedin <https://www.linkedin.com/in/joao-victor-pinto-a1a19190/> LPS: www.lps.ufrj.br | Linkedin <https://www.linkedin.com/company/lpsufrj/about/?viewAsMember=true> Em qua., 10 de jul. de 2024 às 07:21, Lucas Nunes ***@***.***> escreveu:

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I generated some zee EVT samples using the gen_zee.py script but when I checked the event, there were PDGID's 0 with the exception with the expected 11 and -11 for electron positron pairs. Checking the PDGID here <https://pdg.lbl.gov/2019/reviews/rpp2019-rev-monte-carlo-numbering.pdf> there seems to ebe no particle with ID 0. Another fact is that the number of zero id's is exactly half the number of entries in the sample. What is going on? Bellow is the image of an hist plot with the PDGID's @jodafons <https://github.com/jodafons> @micaelverissimo <https://github.com/micaelverissimo> image.png (view on web) <https://github.com/lorenzetti-hep/lorenzetti/assets/52477170/bd723941-2ee5-47cf-8a8d-f530a53d149e> — Reply to this email directly, view it on GitHub <#27>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ACKEOI2LOOVI3G4W6LUBLQ3ZLUDLTAVCNFSM6AAAAABKUS57PSVHI2DSMVQWIX3LMV43ASLTON2WKOZSGQYDAMZUGQ4TKMY> . You are receiving this because you were mentioned.Message ID: ***@***.***>