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Question High energy PB ion physics? 

Keywords: ion, hadron, process, inelastic, nuclear
Forum: Hadronic Processes
Date: 22 Nov, 2007
From: Paul Anton <>


I am currently investigating energy deposition in a beam scraper (a small "collimator") in CERN's SPS accelerator. Basically, I want to see what happens when a beam of 177 GeV/nucleon Pb-82+ hits this beam scraper, made of copper.

I have already done simulations with 450 GeV protons, and it looks fairly good. The problem is that I use the QGSP physics list, and for generic ions this list only includes the processes G4MultipleScattering and G4ionIonisation. ( URL : ) I would also like to see some nuclear inelastic collisions. Ten-digit accuracy is not interesting, but as a minimum I would like to find the average energy deposited in the beam scraper per lead ion, plus/minus, say, 25%. I have a feeling that inelastic collisions will add a huge amount of energy deposited (this is at least the case with protons!!)

I have searched this forum, but the only relevant discussion I see is from 2004 and concludes that there is no such physics functionality yet. Appreciate any help on this!

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1 None: Re: High energy PB ion physics?   (Gunter FOLGER - 22 Nov, 2007)
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