Gravitino BRs in low-scale input

Questions about the interface between SARAH and SPheno as well as the FlavorKit functionality
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charlie
Posts: 16
Joined: 2. Jun 2017, 22:05

Gravitino BRs in low-scale input

Post by charlie » 27. Jun 2017, 09:05

Hi SARAH staff,

I was wondering if branching fractions into gravitinos are ever calculated by SPheno when using a custom LesHouches low-scale input file (for example, in a Dirac gaugino model with chargino NLSP and gravitino LSP) or are these restricted to the case when one chooses GMSB in the MODSEL block?

Best,
Charlie

FStaub
Site Admin
Posts: 822
Joined: 13. Apr 2016, 14:05

Re: Gravitino BRs in low-scale input

Post by FStaub » 27. Jun 2017, 09:08

Hi,

SARAH supports only spin 0,1/2,1 particles, i.e. gravitinos are not included in any model and the decays are never calculated by SARAH generated SPheno versions. Only the 'standard' SPheno version includes the gravitino decays in the GMSB (MSSM only).

Cheers,
Florian

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