how to minimized the errors in the processus W+W-=W+W-

Hello Fatima,

this process is divergent because of the t-channel photon exchange,
so you need to set up kinematical cuts,
for example cut on the scattering angle or transverse momentum.

Regards,
Alexander

yes could you please give me an exemple of cuts on this scattering please.

2017-01-27 19:33 GMT+01:00 Alexander Belyaev <
<email address hidden>>:

> Your question #448072 on CalcHEP changed:
> https://answers.launchpad.net/calchep/+question/448072
>
> Status: Open => Answered
>
> Alexander Belyaev proposed the following answer:
> Hello Fatima,
>
> this process is divergent because of the t-channel photon exchange,
> so you need to set up kinematical cuts,
> for example cut on the scattering angle or transverse momentum.
>
> Regards,
> Alexander
>
> --
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