Using multiple processes and more than two WCs at a time

[arnabroyphy]

Hi,
I am using HighPT to constrain some of the SMEFT operators. For a given process, let’s consider “di-muon-CMS.” I am obtaining 95% allowed regions for pairs of Wilson Coefficients (WCs). My question is: How can I utilize all (or at least 2-3) of the processes listed in Table 3.1 of arXiv:2207.10756, along with more than two WCs simultaneously, to derive a ‘combined’ 95% CL allowed ranges for the WCs?

Thanks in advance.

WIth best regards,
Arnab.

[f-wilsch]

Dear Arnab,

Thank you very much for your question.

Since HighPT is computing a $\chi^2$, you can simply combine the likelihoods of the different searches implemented in HighPT by running the routine ChiSquareLHC for each search individually and summing the resulting $\chi^2$ s to obtain the combined $\chi^2$.

If you want to consider multiple Wilson coefficients for your analysis at the same time, you can simply add all Wilson coefficients that you want to consider to the Coefficients option of ChiSquareLHC as done in 2207.10756.

If you have any further questions, please let us know.

Best regards,
Felix

[arnabroyphy]

Hi Felix,
Thank you very much. That solves my problem. I will let you know if anything else comes up.

With best regards,
Arnab.