[Comphep-common] 2HDM process production

[Ijaz Ahmed]

Dear Experts,
Even after sending couple of emails unfortunately i could not get any response from anybody.
If someone would be like to answer me, please email me in English. I would be thankful.
cheers
ijaz

________________________________________
From: comphep-common-bounces at theory.sinp.msu.ru [comphep-common-bounces at theory.sinp.msu.ru] on behalf of Slava Bunichev [bunichev at theory.sinp.msu.ru]
Sent: 12 May 2015 09:07
To: comphep-common at theory.sinp.msu.ru
Subject: Re: [Comphep-common] 2HDM process production

Уважаемые коллеги, здравствуйте.

Кто-нибудь может ответить этому человеку по поводу 2HDM модели?

Слава.




>
> Hi comphep experts:
>
>  I am studying pp-->A-->ZH0 process in the 2HDM implemented by my own in
> comphep using MSSM model, as i could not find by default 2HDM in comphep,
> if there is let me inform.
> My question is that at LHC the dominant production cross-section fo this
> channel is through gluon-gluon fusion, while here in comphep using
> colliding beams of pb-pb, which contains virtual bottom quarks and gluons
> in =side proton beams, but among the fynman diagrams i could not find such
> diagram which produce this process by gluon fusion, please anybody can
> help me.
>
> Without including gluon fusion in comphep the total cross-section obtained
> at LHC 14Tev for C scenario, for this channel is extremely small, while it
> is around few tens of femto barn generated by SuSHi. I could not
> understand this problem also. I want to know contribution of bb and gg in
> the total production cross-section excluding other diagram. Anyone can
> enlighten me.
>
> Usually my sample generation process in few hundred thousands is very time
> consuming during running on standalone comphep at local PC, any method to
> run much faster way?
>
> Cross-section obtained by adopting procedure ; producing process.dat and
> then ./symb calculation then numerical calculation ,  and obtained by
> graphical interface must be same??
> cheers
> Ijaz
>
> thanks
>
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> Comphep-common mailing list
> Comphep-common at theory.sinp.msu.ru
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>

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