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Implications of new generations on neutrino masses
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Implications of new generations on neutrino masses
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| Aparici Benages, Alberto; Herrero García, Juan Andrés; Rius Dionis, Nuria; Santamaria, Arcadi | |||
| Aquest document és un/a article, creat/da en: 2013 | |||
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| We explore the possible implications that new families, that are being searched for at the LHC, would have on neutrino masses. In particular, we have explored the possibility that the smallness of the observed neutrino masses is naturally understood in a modified version of the Standard Model (SM) with complete extra generations of fermions, i.e., that have right-handed neutrinos, in which neutrino masses are generated at two loops. With one extra family it is not possible to fit the observed spectrum of masses and mixings. However, the radiative mass generated provides an important constraint in these kind of models, so the neutrino masses do not exceed their cosmological bound. Within the context of two extra families, we analyse the allowed parameter space and the possible phenomenological signals. | |||
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