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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.citation | 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.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.subject | Física | |
dc.title | Colliders as a simultaneous probe of supersymmetric dark matter and Terascale cosmology | |
dc.type | journal article | es_ES |
dc.date.updated | 2015-04-28T07:49:48Z | |
dc.identifier.doi | 10.1088/1126-6708/2006/12/005 | |
dc.identifier.idgrec | 030692 | |
dc.rights.accessRights | open access | es_ES |