Dark matter in the KL moduli stabilization scenario with SUSY breaking sector from $$ \mathcal{N} $$ = 1 SQCD

Abstract

We investigate neutralino dark matter from a string/M-theory perspective. Using the Kallosh-Linde (KL) scenario to stabilize the string moduli requires supersymmetry breaking for uplifting to a de Sitter vacuum. We consider the free magnetic dual description of N = 1 SUSY QCD with massive flavours, the Intriligator-Seiberg-Shih model (ISS), as an F-term dynamical SUSY breaking sector. This framework allows for a gravitino mass in the TeV range. Moreover, due to the plethora of particles from the ISS sector, we investigate the consequences of coupling the MSSM with the KL-ISS setup to obtain constraints from both late entropy production and the dark matter relic density. In addition to thermal neutralino production, we consider neutralino production via the decays of gravitinos and ISS fields.

Vacuum stability conditions of the economical $$3-3-1$$ 3 - 3 - 1 model from copositivity

“…Arguably, the simplest model providing a DM candidate is that which extends the SM only by a real scalar transforming in a non trivial way a e-mail: bruce.sanchez@ufabc.edu.br b e-mail: rgambini@ifi.unicamp.br c e-mail: calvarez@ifi.unicamp.br under a stabilizing Z 2 discrete symmetry [18,19]. However, other well-motivated models based on supersymmetry [20][21][22][23], extra dimensions [24], the B − L symmetry [25][26][27][28] and those with an Axion/ALP [29][30][31][32][33][34][35] have been widely considered (see [36] for a review). All of them have additional symmetries and extra particles in their physical spectrum.…”