Colliders as a simultaneous probe of supersymmetric dark matter and Terascale cosmology
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Colliders as a simultaneous probe of supersymmetric dark matter and Terascale cosmology

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Colliders as a simultaneous probe of supersymmetric dark matter and Terascale cosmology

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dc.contributor.author Barenboim Szuchman, Gabriela Alejandra
dc.contributor.author Lykken, Joseph
dc.date.accessioned 2015-04-28T07:49:48Z
dc.date.available 2015-04-28T07:49:48Z
dc.date.issued 2006
dc.identifier.uri http://hdl.handle.net/10550/43451
dc.description.abstract Terascale supersymmetry has the potential to provide a natural explanation of the dominant dark matter component of the standard lambda-CDM cosmology. However once we impose the constraints on minimal supersymmetry parameters from current particle physics data, a satisfactory dark matter abundance is no longer prima facie natural. This Neutralino Tuning Problem could be a hint of nonstandard cosmology during and/or after the Terascale era. To quantify this possibility, we introduce an alternative cosmological benchmark based upon a simple model of quintessential inflation. This benchmark has no free parameters, so for a given supersymmetry model it allows an unambiguous prediction of the dark matter relic density. As a example, we scan over the parameter space of the CMSSM, comparing the neutralino relic density predictions with the bounds from WMAP. We find that the WMAP--allowed regions of the CMSSM are an order of magnitude larger if we use the alternative cosmological benchmark, as opposed to lambda-CDM. Initial results from the CERN Large Hadron Collider will distinguish between the two allowed regions.
dc.language.iso eng
dc.relation.ispartof Journal of High Energy Physics, 2006, vol. 06, num. 12, p. 008
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source Barenboim Szuchman, Gabriela Alejandra Lykken, Joseph 2006 Colliders as a simultaneous probe of supersymmetric dark matter and Terascale cosmology Journal of High Energy Physics 06 12 008
dc.subject Física
dc.title Colliders as a simultaneous probe of supersymmetric dark matter and Terascale cosmology
dc.type info:eu-repo/semantics/article
dc.date.updated 2015-04-28T07:49:48Z
dc.identifier.doi http://dx.doi.org/10.1088/1126-6708/2006/12/005
dc.identifier.idgrec 030692

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