RT Journal Article
T1 New gamma ray signal from gravitationally boosted neutralinos at the galactic center
A1 Cannoni, Mirco
A1 Gómez Santamaría, Mario Emilio
A1 Pérez García, M. A.
A1 Vergados, J. D.
AB We 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.
PB American Physical Society
SN 2470-0010
SN 2470-0029 (electrónico)
YR 2012
FD 2012
LK http://hdl.handle.net/10272/13437
UL http://hdl.handle.net/10272/13437
LA eng
NO Cannoni, 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.85.115015
NO This 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.
DS Repositorio Institucional de la Universidad de Huelva
RD 30 may 2026