New constraints on superpartner masses

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

Research output: Contribution to journalArticle

41 Scopus citations

Abstract

We consider the Minimal Supersymmetric Standard Model (MSSM) without imposing relations on the superpartner masses that arise in grand unified theories. Given an arbitrary pattern of superpartner masses (consistent with experimental constraints), it may happen that the scalar potential is actually unstable, even though all scalar masses-squared are positive at the weak scale Mw. This is most likely to happen if the running mass-squared in a "flat" direction in field space becomes negative at some scale Q0 which is well below the GUT scale. In this case, either this pattern of masses is ruled out, or there must be new physics (beyond the MSSM) at or below the scale Q0.

Original languageEnglish (US)
Pages (from-to)183-187
Number of pages5
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume367
Issue number1-4
DOIs
StatePublished - Jan 18 1996

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