low energy neutrino proton scattering
Dear Expert,
I'be been trying to generate the cross-section for the process vm p > vm p a for a proton at rest and neutrino energies in the range [1,10] GeV. But there seems to be a minimum neutrino energy (about 5 GeV) before I start seeing output. Below this I get a zero cross-section.
Here is the error message:
Survey return zero cross section.
Typical reasons are the following:
1) A massive s-channel particle has a width set to zero.
2) The pdf are zero for at least one of the initial state particles
or you are using maxjetflavor=4 for initial state b:s.
3) The cuts are too strong.
Please check/correct your param_card and/or your run_card.
p.s. I have removed also removed all the cuts
Question information
- Language:
- English Edit question
- Status:
- Answered
- Assignee:
- No assignee Edit question
- Last query:
- Last reply:
Can you help with this problem?
Provide an answer of your own, or ask Sam Carey for more information if necessary.