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dc.contributor.authorCannoni, Mirco 
dc.contributor.authorGómez Santamaría, Mario Emilio 
dc.contributor.authorPérez García, M. A.
dc.contributor.authorVergados, J. D.
dc.identifier.citationCannoni, M., Gómez Santamaría, M.E., Pérez García, M.A., Vergados, J.: "New gamma ray signal from gravitationally boosted neutralinos at the galactic center". Physical Review D. Vol. 85, n. 11, (2012). DOI: 10.1103/PhysRevD.85.115015en_US
dc.identifier.issn2470-0029 (electrónico)
dc.description.abstractWe discuss the possibility that colliding dark matter particles in the form of neutralinos may be gravitationally boosted near the supermassive black hole at the Galactic center so that they can have enough collision energy to annihilate into a stau pair. Since in some phenomenologically favored supersymmetric models the mass splitting between the neutralino and the lightest stau, one of the two scalar superpartners of the tau lepton, is a few GeV, this channel may be allowed. In addition, staus can decay only into a tau lepton and another neutralino. We calculate the gamma ray spectrum and flux generated by the tau pair discussing the observability of the obtained features.en_US
dc.description.sponsorshipThis work was supported by MultiDark under Grant No. CSD2009-00064 of the Spanish MICINN Consolider-Ingenio 2010 Program. Further support is provided by MICINN Projects No. FPA2011-23781, No. FIS-2009-07238, and No. MICINN-INFN(PG21)AIC-D-2011-0724, ESF-COMPSTAR, and Junta de Andalucia under Grant No. P07FQM02962. M. C. acknowledges the hospitality of the Fundamental Physics Department of University of Salamanca where part of this work was developed. The authors acknowledge J. Cembranos, G. Gomez-Vargas, A. Morselli, R. Lineros, and M. A. Sanchez-Conde for useful discussions.en_US
dc.publisherAmerican Physical Societyen_US
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.titleNew gamma ray signal from gravitationally boosted neutralinos at the galactic centeren_US
dc.relation.projectIDinfo:eu-repo/grantAgreement/Spanish MICINN Consolider-Ingenio 2010 Program [CSD2009-00064]en_US
dc.relation.projectIDinfo:eu-repo/grantAgreement/MICINN [FPA2011-23781 FIS-2009-07238 MICINN-INFN(PG21)AIC-D-2011-072]
dc.relation.projectIDinfo:eu-repo/grantAgreement/Junta de Andalucia [P07FQM02962]

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