CalcHEP

In inert double model the dark matter candidate as undecay ( stable) particlee so what is exactlly option in case of undecaying " so we set in calchep in order to make sure that this dark matter S(~X) is stable and it has no more decaying particle "

Asked by faisal muhammad hayat

Here is S . SECOND higgs (~X) i want that it not decay or become stable in my process. so what command i do or what to do in calchep.

Model: IDM
Model changed: False
Gauge: Feynman
Process: p,p->~H3,~H3
Decay: ~H3->~X,Z
Decay: Z->l+,l-
Composite: p=u,U,d,D,s,S,c,C,b,B,G
Composite:l+=E,M,L
Composite:l-=e,m,l
pdf1: PDT:NNPDF23_lo_as_0130_qed(proton)
pdf2: PDT:NNPDF23_lo_as_0130_qed(proton)
p1: 7000
p2: 7000

#Run parameter: mu2
#Run begin: -200
#Run step size: 50
#Run n steps: 9

Number of events (per run step): 50000
Filename: pp_H3H3_mu333

check it .. i want unday of X . how i stop its decay in calchep and phythis.

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Alexander Belyaev (alexander.belyaev) said : 		#1

You have created the new question.
Is it different from "697750" ?
If not, please remove this and continue with 697750
If the question is new, please close 697750.

The particle decay properties does not depend on your will!
The particle decay properties are defined by the model.

~X is DM and it is stable.

If you make masses ~X and ~H3 to be the same -- they both will be stable?

The lighest newutral particle with "~" is stable.

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Alexander Belyaev (alexander.belyaev) said : 		#2

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Provide an answer of your own, or ask faisal muhammad hayat for more information if necessary.

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