Logarithms and ComplexConjugate

[fcornetgomez]

Hi All,
I am calculating the 1-loop gamma gamma to HZ process and in the amplitude I obtain a logarithm that is allowed kinematically to be complex. When calculating the squared amplitude with ComplexConjugate that logarithm is assumed to be real and I just obtain the square of it instead of the squared module. Any ideas on how to solve this?

Mathematica function Conjugate does treat the log in the appropriate way.

Thank you,
Fernando

[vsht]

Hi,

you could do something like

ComplexConjugate[Log[x],Conjugate->{Log,PolyLog}]

Cheers,
Vlad

[fcornetgomez]

Hi Vlad,
thank you for the idea. It seems to work fine.
Best,
Fernando