WHIZARD

CP-odd Higgs mixture

Asked by Yegor Vasenin

Hello,

we are looking to simulation processes with Higgs boson production, however we want to study the contribution of CP-odd Higgs mixture. Is there an UFO extension or Whizard in-built model which allows to change CP-odd part as a parameter? I tried to search for it in ModelDataBase on feynrules web-site, but didn't find any.

Thank you in advance,
Best regards, Yegor Vasenin

Question information

Language:
English Edit question
Status:
Solved
For:
WHIZARD Edit question
Assignee:
Juergen Reuter Edit question
Solved by:
Yegor Vasenin
Solved:
Last query:
Last reply:
Revision history for this message
Juergen Reuter (j.r.reuter) said : 		#1

Dear Yegor,
indeed, the best is to use a UFO model, especially the so called Higgs characterization model,
https://feynrules.irmp.ucl.ac.be/wiki/HiggsCharacterisation
There should be a particle 'X0' whose mass has to be set to 125.xx GeV and then (IIRC), there is
a parameter ca which is cos(alpha) of a mixing angle between CP-even and odd eigenstates.
Please let us know if you are having problems with that UFO model.
Cheers,
     JRR (Juergen)

Revision history for this message
Yegor Vasenin (esvasenin) said : 		#2

Dear Juergen,

thank you very much. We will try this model.

Best regards, Egor Vasenin