FlavorKit Flavio normalization

[AHamamd150]

Dear David,

I used FlavorKit to extract the Wilson coefficients C9_bsmumu and C10_bsmumu investigating the process B0-> K0 mumu. The SM and new physics values were around 10^-9 and 10^0-5 respectively. I expected to have large NP effect when I use the WC_NP value in flavio, but i found the effect is almost negligible.
In order to figure out about that, we have your module flavio.io.flha that read out the SPheno spectrum, but unfortunately i didnt work. So I tried to add the WC to flavio manually with the normalization defined in this module. So I extracted the WC from SPheno spectrum for the NP only and I divided by (-4GFV_tb V_sbalpha/4pi*sqrt(2)), this way i got a reasonable results as expected, am I correct ?

Thanks in advance
Ahmed Hammad

[DavidMStraub]

Hi,

there is no FLHA module in flavio anymore, are you using the most recent version?

I spent a lot of work to establish a standard for Wilson coefficient exchange, it's called WCxf and the FlavorKit authors were involved in it, too. Flavio fully supports it. If FlavorKit doesn't, please raise this with them. You can look at the web site to see the relative normalizations.