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Forum: Physics List
Re: Question "bad" energy losses of pions
Date: 06 Nov, 2004
From: Vladimir IVANTCHENKO <vnivanch@mail.cern.ch>

On Sat, 6 Nov 2004 ptr@msu.dubna.ru wrote:

> *** Discussion title: Physics List
> Email replies to PublicHyperNews@slac.stanford.edu must include:
>   In-Reply-To: <"/phys-list/93"@geant4-hn.slac.stanford.edu>
>   Subject: ...change this to be about your reply.
> 
> Dear G4-s! 
> I have a confusing situation with pions losing energy in so-called 
> plastic (C8H8, density = 1.04 g/cm3, 440 mm thick). Predictet losses 
> of pions in range of kinetic energy from 160 upto 300 MeV is about 
> 100 MeV. But having geometry 4 "plates" 110 mm thikness each i see 
> that pions lose more than predicted 20-25 MeV per plate. Some times
> the value is more than 100 MeV in each plate. Situation for protons 
> is ideal. 
> I'm using standart "General", "EM" phys. lists. Also there is an 
> "Optical" physics list to simulate Cherenkov effect.
> 
> Please give me you comments,
> 
>  Peter.
> 
> 

Pion can decay or interact inelastically with nucleus.

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1 None: Re: "bad" energy losses of pions   (Peter - 07 Nov, 2004)
(_ None: Re: "bad" energy losses of pions   (Vladimir IVANTCHENKO - 07 Nov, 2004)
(_ None: Re: "bad" energy losses of pions   (Peter - 09 Nov, 2004)
(_ None: Re: "bad" energy losses of pions   (Peter - 09 Nov, 2004)
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