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Trilinear Higgs coupling

Asked by muhammad sami

Hello Sir
i want to work on cross section, mass of higgs and tan beta as a function Trilinear Higgs coupling (ghhh/ghhh^sm ). unfortunately i did seen this variable in calchep. sir guide me how i work on it in type 1 2hdm for the process of "e1,E1->z,h,h" ,"e1,E1->Z,H,H", "e1,E1->Z,H,h", "e1,E1-> h,h,h" , "e1,E1->H,H,H" similarly all other possible triple Higgs at 3TeV of CM energy. i want to get graph of mass vs Trilinear Higgs coupling (g/g^sm ) and tan beta vs Trilinear Higgs coupling (g/g^sm )

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Alexander Belyaev (alexander.belyaev) said : 		#1

See discussion #697634

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muhammad sami (msami) said : 		#2

Thanks professor i See discussion #697634
But here i get only one coupling
h |h |h | |-3*EE*Mh^2/(2*MW*SW) |1
Now i want to calculate the graph between tan beta and ratio of coupling in SM by triple Higgs coupling of all processes.
Similarly graph between mass of higgs and ratio of coupling in SM by triple Higgs coupling of all processes.
kindly explain

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Alexander Belyaev (alexander.belyaev) said : 		#3

It clear now,
so you wanted to say that you would like to calculate the cross section versus two parameters -- tan(beta) and trilinear coupling.
There are several ways to calculate cross section as a function of multiple variables :

see manual or my lectures https://sites.google.com/site/alexandersbelyaev/teaching/intro-to-hep-tools

1) the fastest and the most generic one -- to use par_scan script

2) using calchep_batch, especially for 2 dimensional scan if the number of points is not too large

Best
Alexander

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muhammad sami (msami) said : 		#4

thanks for your response,
Dear professor i want trilinear coupling as function of tan(beta). like " gHHH/gSM" vs tan(beta).
2nd things parameter like"HHH, AHH , HAh etc are not present in calchep.
kindly sent a model with these parameter kindly

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Alexander Belyaev (alexander.belyaev) said (last edit ): 		#5

I do not have such a model,
you need to modify model yourself
Alexander

On 21/08/2021 11:55, muhammad sami wrote:
> Question #698409 on CalcHEP changed:
> https://answers.launchpad.net/calchep/+question/698409
>
> muhammad sami posted a new comment:
> thanks for your response,
> Dear professor i want trilinear coupling as function of tan(beta). like " gHHH/gSM" vs tan(beta).
> 2nd things parameter like"HHH, AHH , HAh etc are not present in calchep.
> kindly sent a model with these parameter kindly
>
> --
> You received this question notification because your team CalcHEP is an
> answer contact for CalcHEP.
>

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