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Question Re: Anti-Proton Physics 

Forum: Physics List
Re: Question Anti-Proton Physics (Michael Douglass)
Date: 05 Jul, 2013
From: Dipanwita Banerjee <Dipanwita Banerjee>


I am trying to look into the tracks of the secondaries produced by antiproton annihilations. In principle I am just interested in the mesons produced as a result of the annihilation. My beam energy would be <1kev. I am using G4QCaptureAtRest for the process which is giving me the pions but also other particles as a result of the nuclear fragmentation that's a part of the QCapture algorithm. I would like to get rid of this part and just have the pions, as a part of the pions are being absorbed by the nucleus of the target which is causing the fragmentation and that's causing me to loose few pions in the result. I don't want that. My geometry is fairly simple. It has a 2mm titanium target followed by a tracker with Argon Gas.

Can anyone tell me if there's a better process that can give me the correct production rate of the pions? Or maybe I can change the G4QCaptureAtRest process to meet my requirements. I would like to have the explanation of the code in G4QCaptureAtRest as I am a little confused how they have defined the annihilation and the fragmentation. Can anyone please tell me where I can find the explanation or maybe give me an idea how they have defined the code?



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1 None: Re: Anti-Proton Physics   (John Apostolakis - 11 Sep, 2013)
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