Gamma rays and positrons from a decaying hidden gauge boson

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dc.creatorChen, Chuan-Ren
dc.creatorTakahashi, Fuminobu
dc.creatorYanagida, T. T.
dc.date2008-09-04
dc.date2008-12-18
dc.date.accessioned2026-07-07T12:30:18Z
dc.date.available2026-07-07T12:30:18Z
dc.descriptionWe study a scenario that a hidden gauge boson constitutes the dominant component of dark matter and decays into the standard model particles through a gauge kinetic mixing. Interestingly, gamma rays and positrons produced from the decay of hidden gauge boson can explain both the EGRET excess of diffuse gamma rays and the HEAT anomaly in the positron fraction. The spectra of the gamma rays and the positrons have distinctive features; the absence of line emission of the gamma ray and a sharp peak in the positron fraction. Such features may be observed by the GLAST and PAMELA satellites.
dc.description16 pages, 4 figures, adding PAMELA data, the version accepted by PLB
dc.identifierhttps://arxiv.org/abs/0809.0792
dc.identifierhttp://arxiv.org/abs/0809.0792
dc.identifierPhys.Lett.B671:71-76,2009
dc.identifierdoi:10.1016/j.physletb.2008.11.048
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/216092
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectAstrophysics
dc.titleGamma rays and positrons from a decaying hidden gauge boson
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