Hi Florian,

in SARAH version 4.11.0 you included 2-body decays at full 1-loop level, based on the results presented in your paper with Mark Goodsell and Stefan Liebler (1703.09237). However, I noticed something weird, perhaps due to a mistake from my side. I attach a simple SM LesHouches input file for SPheno that leads to a huge (and incorrect) change in the Higgs boson branching ratios when the 1-loop corrections are included. As you can see, the branching ratio in the digluon channel is way too high. The diphoton channel seems wrong as well. Or am I interpreting the results incorrectly?

Cheers
Avelino

Hi Avelino,

unfortunately, there is a problem as you observed with S->VV for two massless V. It will be fixed in the next update. The other partial widths are fine. Note, you should consider for the digluon, diphoton rate the "old" results anyway since they already include higher order corrections from the SM beyond one-loop.

Cheers,
Florian

Thanks for the confirmation. Actually I was just having a look at the newest SARAH version, so I'll just wait for the update.