Message: High energy ion projectiles in cosmic ray simulation Not Logged In (login)
 Next-in-Thread Next-in-Thread
 Next-in-Forum Next-in-Forum

Question High energy ion projectiles in cosmic ray simulation 

Forum: Physics List
Date: 16 Oct, 2013
From: Nicola Mori <Nicola Mori>

Hello, for my experiment I must simulate high-energy cosmic-ray ion projectiles impinging on my detector, let's say up to Fe. The energy range I need to cover goes up to some hundred of GeV/n, and I'm wondering whether Geant4 physics is reliable or not for such kind of use-case. I see that using QGSP_FTFP_BERT physics list in version 9.6, for example, ion physics is available up to 100 TeV:

Hadronic Processes for <GenericIon> ----------------------------------- ionInelastic Models: Binary Light Ion Cascade: Emin(GeV)= 0 Emax(GeV)= 4 FTFP: Emin(GeV)= 2 Emax(GeV)= 100000 ionInelastic Crs sctns: Glauber-Gribov nucleus nucleus: Emin(GeV)= 0 Emax(GeV)= 100000 GheishaInelastic: Emin(GeV)= 0 Emax(GeV)= 100000

My question is: can I really trust this model up to 100 TeV? I know this is a pretty dumb question but I would need some rule-of-thumb to decide how much I can go up in energy without falling into a regime where things are known to be broken. I'll also be grateful to anyone pointing me to any validation studies done at such high energies for ion projectiles (even against other simulation codes like Fluka), if there are any. Thanks.

Inline Depth:
 1 1
 All All
Outline Depth:
 1 1
 2 2
 All All
Add message: (add)

1 None: Re: High energy ion projectiles in cosmic ray simulation   (Nicola Mori - 16 Oct, 2013)
(_ None: Re: High energy ion projectiles in cosmic ray simulation   (Nicola Mori - 26 Oct, 2013)
 Add Message Add Message
to: "High energy ion projectiles in cosmic ray simulation"

 Subscribe Subscribe

This site runs SLAC HyperNews version 1.11-slac-98, derived from the original HyperNews


[ Geant 4 Home | Geant 4 HyperNews | Search | Request New Forum | Feedback ]