Extended coannihilations from non universal sfermion masses

2003/05/05 by Stefano Profumo, Profumo, Stefano · 2 citations
Engineering · Physics and Astronomy · #Quantum, superfluid, helium dynamics #Superconducting Materials and Applications #Superconductivity in MgB2 and Alloys #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ph/0305040

6 pages, 5 figures, latex. Talk presented at the XXXVIIIth Rencontres de Moriond on ElectroWeak Interactions and Unified Theories, Les Arcs, France, March 15th-22nd 2003

arxiv created 2003/05/05 · arxiv updated 2009/11/30

Abstract

We propose and analyse a GUT-inspired version of the MSSM featuring non universal sfermion masses boundary conditions and asymptotic b-tau Yukawa coupling unification. The particle spectrum of the model gives rise to extended coannihilation processes, involving the lightest sbottom and the tau sneutrino. We study the allowed parameter space, subject to cosmo-phenomenological requirements, and the details of the new coannihilations modes. Implications for direct and indirect neutralino searches, as well as for collider physics, are also briefly summarized.

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