Determining the Dark Matter Relic Density in the Minimal Supergravity Stau-Neutralino Coannihilation Region at the Large Hadron Collider

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dc.creatorArnowitt, Richard
dc.creatorDutta, Bhaskar
dc.creatorGurrola, Alfredo
dc.creatorKamon, Teruki
dc.creatorKrislock, Abram
dc.creatorToback, David
dc.date2008-02-21
dc.date2008-06-09
dc.date.accessioned2026-07-07T11:56:13Z
dc.date.available2026-07-07T11:56:13Z
dc.descriptionWe examine the stau-neutralino coannihilation (CA) mechanism of the early universe. We use the minimal supergravity (mSUGRA) model and show that from measurements at the Large Hadron Collider one can predict the dark matter relic density with an uncertainty of 6% with 30 fb-1 of data, which is comparable to the direct measurement by Wilkinson Microwave Anisotropy Probe. This is done by measuring four mSUGRA parameters m0, m1/2, A0 and tan(beta) without requiring direct measurements of the top squark and bottom squark masses. We also provide precision measurements of the gaugino, squark, and lighter stau masses in this CA region without assuming gaugino universality.
dc.descriptionLaTex file, 4 pages, 5 eps fugures. Final version. Appear in PRL
dc.identifierhttps://arxiv.org/abs/0802.2968
dc.identifierhttp://arxiv.org/abs/0802.2968
dc.identifierPhys.Rev.Lett.100:231802,2008
dc.identifierdoi:10.1103/PhysRevLett.100.231802
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/205508
dc.subjectHigh Energy Physics - Phenomenology
dc.titleDetermining the Dark Matter Relic Density in the Minimal Supergravity Stau-Neutralino Coannihilation Region at the Large Hadron Collider
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