Less minimal supersymmetric standard model

André De Gouvêa, Alexander Friedland, Hitoshi Murayama

Research output: Contribution to journalArticlepeer-review

16 Scopus citations


Most of the phenomenological studies of supersymmetry have been carried out using the so-called minimal supergravity scenario, where one assumes a universal scalar mass, gaugino mass, and trilinear coupling at MGUT. Even though this is a useful simplifying assumption, it is too restrictive to accommodate a large variety of phenomenological possibilities. It predicts that the lightest supersymmetric particle (LSP) is an almost pure B-ino. We extend the minimal scenario by introducing one extra parameter: the Fayet-Iliopoulos D term for U(1)Y, DY, and find a much more diverse phenomenology, where the LSP is ν̃τ, τ̃ or a Higgsino-like neutralino. We discuss the relevance of the different possibilities to collider signatures.

Original languageEnglish (US)
Article number095008
JournalPhysical Review D
Issue number9
StatePublished - 1999

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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