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Idea Re: Antiproton annihilation cross section 

Forum: Hadronic Processes
Re: Question Antiproton annihilation cross section (Kirill Skovpen)
Re: Idea Re: Antiproton annihilation cross section (Vladimir Ivanchenko)
Re: Question Re: Antiproton annihilation cross section (Kirill Skovpen)
Date: 12 Apr, 2009
From: Vladimir Ivanchenko <Vladimir Ivanchenko>

Hello Kirill,

Your Physics List is similar to the default which is using parameterized model (GHEISHA, derived from G3). There is a bug - you instantiate 2 AtRest processes - one obsolere G4AntiProtonAnnihilationAtRest and recommanded one G4QCaptureAtRest. I would remove the first one.

To have better anti_proton physics you likely need to use other G4 models. I would let you communicate with original authors of FTF base models, QGS base models, CHIPS models and Bertini. They should clarify if any of above can be used now and at what energy.

VI

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None Re: Antiproton annihilation cross section  by Kirill Skovpen <Kirill Skovpen>,   16 Apr, 2009
Re: Idea Re: Antiproton annihilation cross section (Vladimir Ivanchenko)
Thank you Vladimir for your answer. Ok, I'll remove the bug concerned with duplicate of AnnihilationAtRest process and try to use other models(FTF,QGS,CHIPS,Bertini) to see if there any differences in antiproton simulation from the default PhysicsList for low energies.

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