failure to generate phase space

Asked by Hind on 2020-08-20

Hi,

I'm trying to simulate a simple 2-> 2 contact term pair production process, which keeps failing due to a "FATAL ERROR: Phase-space: generation failed" I'm unsure how to resolve this and haven't found much help in the manual. I have enough energy in sqrts for pair production, so that is not a problem.

Thanks!

Question information

Language:
English Edit question
Status:
Solved
For:
WHIZARD Edit question
Assignee:
Juergen Reuter Edit question
Last query:
2020-08-20
Last reply:
2020-09-09
Hind (7anooch) said : #1

To clarify: the process involves a 4 fermion interaction. Which may be why it is failing?

Juergen Reuter (j.r.reuter) said : #2

Hi,
exactly this case is discussed in Sec. 8.6 of the manual. Please let us know if that information is insufficent.
Best,
    JRR

Juergen Reuter (j.r.reuter) said : #3

Solved.