IBD simulation in geant4

Physics Processes, Models and Cross Sections
1

hello
Can I simulate IBD(Inverse Betta decay ) Process in geant4?
thanks

2

In principle you could, if you wrote the process yourself, but this wouldn’t make much sense, as (anti)neutrino interactions are very rare: you don’t have to spend ages of CPU time to track neutrinos and have only a few interactions.
The usual way to handle this problem is by using a primary generator: you directly generate the final state of the IBD (i.e. the positron and the neutron) by an appropriate algorithm and you feed this as the “initial state” of a Geant4 simulation.

3

Thank you,
I know P.Vogel has done something about it. Regarding the angular cross section of IBD. In addition, I found packages that do this, such as NuMC or RATpac, but I do not have access to these packages. Do you have another solution?

4

Uh, no. I don’t have any other alternative solution than implementing the code yourself, if you cannot get a ready-for-the-use implementation…

5

I seem to have to make something myself :slightly_smiling_face: :muscle:

6

Hi! I know it’s been a while since you have posted, but I am also interested in simulating IBD. Did you find any good resource afterwards?

7

You may have seen this article:

NuSD: Neutrino Segmented Detector is a Geant4-based user application that simulates inverse beta decay events in a variety of segmented scintillation detectors developed by different international collaborations.