Weighted power counting, neutrino masses and Lorentz violating extensions of the Standard Model

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dc.creatorAnselmi, Damiano
dc.date2008-08-26
dc.date2009-01-28
dc.date.accessioned2026-07-07T12:46:28Z
dc.date.available2026-07-07T12:46:28Z
dc.descriptionWe study the Standard-Model extensions that have the following features: they violate Lorentz invariance explicitly at high energies; they are unitary, local, polynomial and renormalizable by weighted power counting; they contain the vertex (LH)^2, which gives Majorana masses to the neutrinos after symmetry breaking, and possibly four fermion interactions; they do not contain right-handed neutrinos, nor other extra fields. We study the simplest CPT invariant Standard-Model extension of this type in detail and prove the cancellation of gauge anomalies. We investigate the low-energy recovery of Lorentz invariance and comment on other types of extensions.
dc.description26 pages; v2: more references and comments, PRD
dc.identifierhttps://arxiv.org/abs/0808.3475
dc.identifierhttp://arxiv.org/abs/0808.3475
dc.identifierPhys.Rev.D79:025017,2009
dc.identifierdoi:10.1103/PhysRevD.79.025017
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/221394
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Theory
dc.titleWeighted power counting, neutrino masses and Lorentz violating extensions of the Standard Model
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