Problem 2609

Summary: Problem with G4GammaNuclearXS for photonuclear cross-section
Product: Geant4 Reporter: Le Tuan Anh <anh.tuan.le>
Component: processes/hadronic/cross_sectionsAssignee: Vladimir.Ivantchenko
Status: ASSIGNED ---    
Severity: minor    
Priority: P4    
Version: other   
Hardware: All   
OS: All   
Attachments: There is a overshooting for W-186 when using G4GammaNuclearXS (G4GNXS)

Description Le Tuan Anh 2024-04-25 05:09:24 CEST
Created attachment 865 [details]
There is a overshooting for  W-186 when using G4GammaNuclearXS (G4GNXS)

I am benchmarking the Geant4 cross-section of the photonuclear reaction on a deformed target.I used Geant4 built-in cross-section models: G4PhotoNuclearCrossSection (G4PNXS) and G4GammaNuclearXS (G4GNXS).
In my benchmark, I found out that G4GNXS well-regenerated experimental data for Eu153 and Gd160.
But for W186 or Ho165, there is an overshooting of the cross-section with G4GammaNuclearXS as can be seen in the attached picture.
These may refer that for W, and Ho there is a problem, which requires investigation. This problem may mean that data inside DB itself requires correction. The exact reason, why extracted data has this problem requires investigation to provide a solid solution.