Postcards from oases in the desert: phenomenology of SUSY with intermediate scales


Autoria(s): Biggio, Carla; Calibbi, Lorenzo; Masiero, Antonio; Vempati, Sudhir K
Data(s)

2012

Resumo

The presence of new matter fields charged under the Standard Model gauge group at intermediate scales below the Grand Unification scale modifies the renormalization group evolution of the gauge couplings. This can in turn significantly change the running of the Minimal Supersymmetric Standard Model parameters, in particular the gaugino and the scalar masses. In the absence of new large Yukawa couplings we can parameterise all the intermediate scale models in terms of only two parameters controlling the size of the unified gauge coupling. As a consequence of the modified running, the low energy spectrum can be strongly affected with interesting phenomenological consequences. In particular, we show that scalar over gaugino mass ratios tend to increase and the regions of the parameter space with neutralino Dark Matter compatible with cosmological observations get drastically modified. Moreover, we discuss some observables that can be used to test the intermediate scale physics at the LHC in a wide class of models.

Formato

application/pdf

Identificador

http://eprints.iisc.ernet.in/45506/1/jol_hig_ene_phy_8-150_2012.pdf

Biggio, Carla and Calibbi, Lorenzo and Masiero, Antonio and Vempati, Sudhir K (2012) Postcards from oases in the desert: phenomenology of SUSY with intermediate scales. In: JOURNAL OF HIGH ENERGY PHYSICS (8).

Publicador

Springer

Relação

http://dx.doi.org/10.1007/JHEP08(2012)150

http://eprints.iisc.ernet.in/45506/

Palavras-Chave #Centre for High Energy Physics
Tipo

Journal Article

PeerReviewed