Constraints from inflation and reheating on superpartner masses

Toby Falk, Keith A. Olive, Leszek Roszkowski, Anupam Singh, Mark Srednicki

Research output: Contribution to journalArticlepeer-review

49 Scopus citations

Abstract

Flat directions in the Minimal Supersymmetric Standard Model (MSSM) can become unstable due to radiative corrections, and the global minimum of the (zero temperature) potential can lie at large values of the squark and/or slepton fields. Here we show that, in inflationary models of early cosmology, the universe is very likely to be in the domain of attraction of this global minimum at the end of inflation. While the minimum at the origin of field space is global at sufficiently high temperatures, depending on details of the model, the universe may be trapped in the non-zero minimum until it becomes the global minimum at low temperatures. Parameter values leading to this scenario are therefore ruled out.

Original languageEnglish (US)
Pages (from-to)50-57
Number of pages8
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume396
Issue number1-4
DOIs
StatePublished - Mar 20 1997

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