Dark Matter in Gauge Mediation from Emergent Supersymmetry

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dc.creatorNg, Siew-Phang
dc.creatorOkada, Nobuchika
dc.date2007-05-15
dc.date.accessioned2026-07-07T12:23:52Z
dc.date.available2026-07-07T12:23:52Z
dc.descriptionWe investigated the viability of neutralino dark matter in the gauge mediation from emergent supersymmetry proposal. In this proposal, supersymmetry is broken at Planck scale and consequently, the gravitino is superheavy and completely decouples from the low energy theory. Squarks and sleptons obtain their soft masses dominantly through gauge mediation with other mechanisms highly suppressed. The lightest supersymmetric partner, in contrast to traditional gauge mediation, is a neutralino which is also a dark matter candidate. By explicit calculation of the low energy spectra, the parameter space was constrained using the WMAP observed relic density of dark matter, LEP2 Higgs mass bounds, collider bounds on supersymmetric partners and exotic B-meson decays. We found that the model has intriguing hybrid features such as a nearly gauge-mediated spectrum (the exception being the superheavy gravitino) but with a dominant mSUGRA-like bino-stau coannihilation channel and at large $\tan β$, A-resonance-like annihilation.
dc.description14 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/0705.2258
dc.identifierhttp://arxiv.org/abs/0705.2258
dc.identifierJHEP 0709:040,2007
dc.identifierdoi:10.1088/1126-6708/2007/09/040
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/214144
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectAstrophysics
dc.titleDark Matter in Gauge Mediation from Emergent Supersymmetry
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