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WIMP dark matter as radiative neutrino mass messenger

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WIMP dark matter as radiative neutrino mass messenger

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Hirsch, Martin; Lineros Rodríguez, Roberto Alfredo; Morisi, S.; Palacio, Joaquim; Rojas Rojas, Nicolás; Furtado Valle, José Wagner

Aquest document és un/a article, creat/da en: 2013

Este documento está disponible también en : 10.1007/JHEP10(2013)149

The minimal seesaw extension of the Standard SU(3)(c)circle times SU(2)(L)circle times U(1)(Y) Model requires two electroweak singlet fermions in order to accommodate the neutrino oscillation parameters at tree level. Here we consider a next to minimal extension where light neutrino masses are generated radiatively by two electroweak fermions: one singlet and one triplet under SU(2)(L). These should be odd under a parity symmetry and their mixing gives rise to a stable weakly interactive massive particle (WIMP) dark matter candidate. For mass in the GeV-TeV range, it reproduces the correct relic density, and provides an observable signal in nuclear recoil direct detection experiments. The fermion triplet component of the dark matter has gauge interactions, making it also detectable at present and near future collider experiments.

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