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Loop level
Posted: 23. May 2017, 12:04
by Astro
Hi Florian,
I read in the manual of the FlavorKit that the Wilson coefficients are calculated on one 1- loop level ..
I wonder can calculations made also on 2-loop level, for instance get two penguins in b -> s l+ l- decay ?
Best.
Re: Loop level
Posted: 23. May 2017, 12:58
by FStaub
Of course, one can do these calculations (results are known for the SM and MSSM), but not in a fully automatised way with SARAH.
Cheers
Florian
Re: Loop level
Posted: 23. May 2017, 13:54
by Astro
Hi,
FStaub wrote: Of course, one can do these calculations (results are known for the SM and MSSM),
You mean i can generate in Flavour Kit two- loop diagrams ? i think i have to modify the 2d2L.m file , should i use Filters or what ?
because in default it generates only one loop - diagrams ..
Thanks ..
Re: Loop level
Posted: 23. May 2017, 14:08
by FStaub
No. As I have written, these calculations are not possible with SARAH. You need to sit down and do them by your own.
I just meant that they exist for a few models in literature, i.e. they are not impossible in general. Of course, they are far away from being easy.
Best,
Florian
Re: Loop level
Posted: 23. May 2017, 14:18
by Astro
Ok, thanks ..
Bests.