Electroweak Supersymmetry around the Electroweak Scale

Details Electroweak Supersymmetry around the Electroweak Scale Electroweak Supersymmetry around the Electroweak Scale

2012-02-27

arxiv.org/abs/1202.6088v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

RevTex4, 26 pages, 8 figures, 8 tables

Scientific paper

Inspired by the phenomenological constraints, LHC supersymmetry and Higgs searches, dark matter search as well as string model building, we propose the electroweak supersymmetry around the electroweak scale: the squarks and/or gluinos are around a few TeV while the sleptons, sneutrinos, bino and winos are within one TeV. The Higgsinos can be either heavy or light. We consider bino as the dominant component of dark matter candidate, and the observed dark matter relic density is achieved via the neutralino-stau coannihilations. Considering the Generalized Minimal Supergravity (GmSUGRA), we show explicitly that the electroweak supersymmetry can be realized, and the gauge coupling unification can be preserved. With two Scenarios, we study the viable parameter spaces that satisfy all the current phenomenological constraints, and we present the concrete benchmark points. Furthermore, we comment on the fine-tuning problem and LHC searches.

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