Why are there two couplings defined for each interaction?
Asked by
Ameir Shaa
Hi MadGraph Team,
I apologize if this is a trivial question.
In the file, couplings.f, there seems to be two couplings defined for every interaction. For example, take the e- e- z interaction defined by the coupling gzl. In couplings.f, gzl is defined by:
gzl(1) = dcmplx( -ez*(-Half + sin2w) , Zero )
gzl(2) = dcmplx( -ey , Zero )
What is the significance of gzl(1) and gzl(2)?
Many thanks in advance for your answer to this (somewhat trivial) question.
Many thanks,
Ameir
Question information
- Language:
- English Edit question
- Status:
- Solved
- Assignee:
- No assignee Edit question
- Solved by:
- Olivier Mattelaer
- Solved:
- Last query:
- Last reply:
To post a message you must log in.