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Hello, I am simulating production of neutrinos from the interaction of 1 Gev protons with mercury target. I am using precompiled list "QGSP_BIC". One of the processes is the production of negative pions which decay to negative muons. This negative muons can undergo capture or decay processes. If it is a capture, the mu- should produce muon neutrino; when it decays - it produces muon neutrino and electron anti-neutrino. In my SteppingAction, I have written the code which, upon finding electron anti-neutrino, allows to pick out the process that created it. Here is the piece of the code:
G4Track* track = aStep->GetTrack(); const G4VProcess *creator_process = track->GetCreatorProcess(); G4String creator_process_name = creator_process->GetProcessName();
Then, I print this info out. And here is what I got for one found electron antineutrino:
anti_nu_e (trackID=438, status='Alive'): step proc='Transportation' in Volume='physical_UpBePlug' at position=(34.967185, 31.234776, -1.5152518) cm Name of creator process:muMinusCaptureAtRest
I.e. it looks like electron antineutrinos are produced in mu- capture.
I will appreciate if someone will write his/her ideas about this. Maybe I am doing something wrong in the SteppingAction...
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