How to Calculate the Loop Function for Higgs Decay to Photons or Gluons?

[Safinaz]

Hi all,

Has anyone know how to calculate the loop function of Higgs decay to photons/ gluons by t quark , or a useful reference.

Cheers,
Safinaz

 

[RGevo]

Isn't it exactly the same as for the production?

Replace the gluons by photons.

 

[Safinaz]

Yes, I mean the loop function of the decay or production ..

S

 

[RGevo]

Google this.
Higgs production through gluon fusion at leading order - Nikhef
That is one that I had looked at before. Alternatively you could always look at the code for production or decay in one of the generators if you get stuck.

Hope it helps

 

[Safinaz]

Thanks .. I will try this.

Bests,
S