Zero output in data file

Sorry,  I don't often use calchep batch. My be Alexander Belyaev can
help you  better.

Using     CalcHEP/bin/par_scan  you can get dependence of total width of
some parameters.

May be the best way is to use micrOMEGAs  which in intended for Dark
Matter models but will work with models without DM as well. It uses the
same model files and allows the user to write C-code with cycle you
needs.  I can help you in this way.

Best

    Alexander Pukhov

On 8/2/23 19:20, Sarif Khan wrote:
> New question #707518 on CalcHEP:
> https://answers.launchpad.net/calchep/+question/707518
>
> Dear All,
>
> I was trying to write down the output of decay process in a file using the following script:
>
> Model: SM(+hgg)
> Decay: h -> 2*x
> Run parameter: Mh
> Run begin: 100
> Run step size: 25
> Run n steps: 3
>
> Filename: batch_sk
> Max number of cpus: 8
> Max number of nodes: 8
> nSess_1: 5
> nCalls_1: 10000
> nSess_2: 5
>
> But I am getting "batch_sk-cs.dat" with mass variation and zero decay width.
>
> Can you please let me know the mistake I am making in writing the output?
>
> I was able to follow the other way using "n_calchep" but by that method, the output is coming with "&" in between two columns.
>
> Best regards,
> Sarif Khan
>

Dear Sarif ,

run of your bacth does evaluate the width of the process -- you can see it when you click on each particular
link with "Mh=100" etc

But this batch as you understand does not priduce cross sections -- this is the batch is designed for.
That is why the cross section plot is zero, since there is no cross section for the process you are questing for.

Batch file can evaluate and plot cross sectio x Br, but not plot the width itself.

If you need the width versus model parameters you need to use par_scan script ar Alexander Pukhov adivced.

We might consider evaluation only width in the future versions of the clachep btach.

Best regards
ALexander Belyaev