I want to simulate the gamma production from 2.7 MeV interaction on a CaF2 target.
The main gammas are 6-7 MeV gammas following 19F(p,\alpha)16N reaction.
16N decays to 16O through \beta- desintegration. There are two main gammas : 6129 keV (67%) and 7115 keV (4.9 %). The rest, almost, is directly to ground level.
I use QGSP_BIC_HP Physics List. Which includes G4RadioactiveDecayPhysics.
The resulting gamma production is very broad, yet centred aroud 6 MeV.
As if the 16O was no populated on its excited states.
Is there an option force the use of tabulated excited states ?
I attached the gamma production in the CaF2 target
Thank you for your help,
Romain
Geant4 Version: Geant4 v10.7.4 Operating System: Debian 10.13 Compiler/Version: GNU Make 4.2.1 CMake Version: 3.13.4
Here, a macro for example Hadr03, and an extract of its printout.
As you can see, Nitrogen is never involved; only Oxygen and two of its excited states.