A note on the primordial abundance of stau NLSPs

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Published 16 October 2008 IOP Publishing Ltd
, , Citation Michael Ratz et al JCAP10(2008)026 DOI 10.1088/1475-7516/2008/10/026

1475-7516/2008/10/026

Abstract

In scenarios with gravitino lightest supersymmetric particles, there exist strong big bang nucleosynthesis constraints on the abundance of possible stau next-to-lightest supersymmetric particles. We find that in settings with substantial left–right mixing of the stau mass eigenstates these constraints can be evaded even for very long-lived staus.

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10.1088/1475-7516/2008/10/026