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Dark Matter As A Guide Toward A Light Gluino At The Lhc, Daniel Feldman, Gordon Kane, Ran Lu, Brent T. Nelson
Dark Matter As A Guide Toward A Light Gluino At The Lhc, Daniel Feldman, Gordon Kane, Ran Lu, Brent T. Nelson
Brent Nelson
Motivated by specific connections to dark matter signatures, we study the prospects of observing the presence of a relatively light gluino whose mass is in the range ~ (500 − 900) GeV with a wino-like lightest supersymmetric particle with mass in the range of ~ (170 − 210) GeV. The light gaugino spectra studied here is generally different from other models, and in particular those with a wino dominated LSP, in that here the gluinos can be significantly lighter. The positron excess reported by the PAMELA satellite data is accounted for by annihilations of the wino LSP and their relic …
Dark Matter Prospects In Deflected Mirage Mediation, Michael Holmes, Brent T. Nelson
Dark Matter Prospects In Deflected Mirage Mediation, Michael Holmes, Brent T. Nelson
Brent Nelson
The recently introduced detected mirage mediation (DMM) model is a string-motivated paradigm in which all three of the major supersymmetry-breaking transmission mechanisms are operative. We begin a systematic exploration of the parameter space of this rich model context, paying special attention to the pattern of gaugino masses which arise. In this work we focus on the dark matter phenomenology of the DMM model as such signals are the least influenced by the model-dependent scalar masses. We find that a large portion of the parameter space in which the three mediation mechanisms have a similar effective mass scale of 1 TeV …