Inelastic (anti-)deuteron -- nucleus cross-sections

Physics Processes, Models and Cross Sections
1

Dear Geant4 experts,

I have a question regarding the calculation of total inelastic cross-sections of (anti-)deuterons on nuclei. In principle, inelastic cross-section for (anti-)deuterons should be a sum of several processes such as annihilation, break-up or inelastic nuclear scattering etc. By looking at Geant4 code/documentation, i see that only total inelastic cross-section is computed for (anti-)deuterons using Glauber-Gribov calculations as implemented in:

deuteron–nucleus:
G4ComponentGGNuclNuclXsc::ComputeCrossSections()
anti-deuteron–nucleus:
G4ComponentAntiNuclNuclearXS::GetInelasticElementCrossSection()

Is it possible to get the cross-sections mentioned above in Geant4 separately? Are there any models on the market which can describe these processes separately at kinetic energies of (anti-)deuteron of 100 - 5000 MeV? Thanks a lot in advance.

Best regards,
Ivan

1 Like
2

Hello,

for today inside Geant4 we have Elastic and Inelastic cross sections available from classes you mention. The inelastic cross section include all possible interactions. You need to apply a filter for secondary particles in order to extract a probability of reaction channel and to compute partial cross section.

VI

3

Hi,

I have been looking for the deuteron_inelastic interaction of deuterons with lithium, but I haven’t been able to find any of the cross section files…
Could you point me to the correct place to look?

Kind regards,

Koen

4

Hello,

there is no cross section files for this cross section, only analytical formulas.

VI

5

Hi VI,

Thank you, could you point me at these analytical formulas?

Thanks!

Koen

6

Hello,

I am a bit confused with your recent comment: you have interest to deuteron cross section or anti_deuteron? According to the title it seems to be anti_deuteron. In that case, the class is G4AntiNuclElastic.cc

VI

7

Hi,

Sorry for the confusion, this is not my original post, but I thought it matched quite well with my question.

I have an interest in the deuteron_inelastic interaction cross section data.
What formulas are used for this calculation and where can I find these?

Cheers, Koen

8

Hello,

I am very interested to know how Geant4 calculates the probability of the different reaction channels given it is only provided with the total inelastic cross sections.

Thanks
Nima

9

Hi, did you get each reaction channel? I also want to know how to get them one by one especially in inelastic process and now I don’t understand how to filter the process. Your help will be much appreciated if you can provide some examples.

10

Has anyone solved the problem?