Dark Matter: The Leptonic Connection

dc.creatorCao, Qing-Hong
dc.creatorMa, Ernest
dc.creatorShaughnessy, Gabe
dc.date2009-01-11
dc.date2009-02-06
dc.date.accessioned2026-07-07T12:58:54Z
dc.date.available2026-07-07T12:58:54Z
dc.descriptionRecent observatons of high-energy positrons and electrons by the PAMELA and ATIC experiments may be an indication of the annihilation of dark matter into leptons and not quarks. This leptonic connection was foreseen already some years ago in two different models of radiative neutrino mass. We discuss here the generic interactions (nu eta^0 - l eta^+) chi and l^c zeta^- chi^c which allow this to happen, where chi and/or chi^c are fermionic dark-matter candidates. We point out in particular the importance of chi chi to l^+ l^- gamma to both positron and gamma-ray signals within this framework.
dc.description4 pages, 5 figures. v2: PLB version
dc.identifierhttps://arxiv.org/abs/0901.1334
dc.identifierhttp://arxiv.org/abs/0901.1334
dc.identifierPhys.Lett.B673:152-155,2009
dc.identifierdoi:10.1016/j.physletb.2009.02.015
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/225402
dc.subjectHigh Energy Physics - Phenomenology
dc.titleDark Matter: The Leptonic Connection
dc.typetext

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