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flav-io / flavio

A Python package for flavour physics phenomenology in the Standard model and beyond
http://flav-io.github.io/
MIT License
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Question about running quark masses in EDM sub-module #259

Open e-nvw opened 1 month ago

e-nvw commented 1 month ago

Dear authors,

I recently noticed that the fermion mass running function get_m (in flavio/physics/edms/common.py) appears to be calling the down quark running mass for an up quark input, and vice versa:

    def get_m(par, f, scale, eft):
        ...
        if f == 'u':
            return flavio.physics.running.running.get_md(par, scale, nf_out=nf_out)
        elif f == 'd':
            return flavio.physics.running.running.get_mu(par, scale, nf_out=nf_out)
        ...

My apologies if this is a silly question, but I'm unsure why this should be the case, especially in light of get_m's subsequent implementation in the function edm_f (where context suggests it should be providing the mass of the input fermion f). Any clarification would be much appreciated.

Thank you for your time. Ewan Wallace

DavidMStraub commented 1 month ago

I think it's not a silly question but a silly bug :wink: