Splitting Extended Supersymmetry

Ignatios Antoniadis , Karim Benakli (1) , Antonio Delgado , Mariano Quiros , Marc Tuckmantel

1 LPTHE - Laboratoire de Physique Théorique et Hautes Energies

We show how splitting supersymmetry reconciles a class of intersecting brane models with unification. The gauge sector in these models arises in multiplets of extended supersymmetry while matter states are in N=1 representations. A deformation of the angles between the branes gives large masses to squarks and sleptons, as well as supersymmetry breaking contributions to other string states. The latter generate at one-loop heavy Dirac masses for Winos and gluinos and can induce a mass term for the Higgsino doublets. We find that this scenario is compatible with gauge coupling unification at high scale for both cases where the gauge sector is N=2 and N=4 supersymmetric. Moreover a neutralino, combination of neutral Higgsinos and Binos, is a natural candidate for dark matter.

Domaines: Physique des Hautes Energies - Phénoménologie [hep-ph]; Physique des Hautes Energies - Théorie [hep-th]

Ignatios Antoniadis, Karim Benakli, Antonio Delgado, Mariano Quiros, Marc Tuckmantel. Splitting Extended Supersymmetry. Physics Letters B, 2006, 634, pp.302-306. ⟨hal-00102612⟩