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Non-unitary neutrino mixing and CP violation in the minimal inverse seesaw model
KTH, School of Engineering Sciences (SCI), Theoretical Physics, Theoretical Particle Physics.
KTH, School of Engineering Sciences (SCI), Theoretical Physics, Theoretical Particle Physics.ORCID iD: 0000-0002-3525-8349
KTH, School of Engineering Sciences (SCI), Theoretical Physics, Theoretical Particle Physics.
2009 (English)In: Physics Letters B, ISSN 0370-2693, Vol. 679, no 3, 242-248 p.Article in journal (Refereed) Published
Abstract [en]

We propose a simplified version of the inverse seesaw model, in which only two pairs of the gauge-singlet neutrinos are introduced, to interpret the observed neutrino mass hierarchy and lepton flavor mixing at or below the TeV scale. This "minimal" inverse seesaw scenario (MISS) is technically natural and experimentally testable. In particular, we show that the effective parameters describing the non-unitary neutrino mixing matrix are strongly correlated in the MISS, and thus, their upper bounds can be constrained by current experimental data in a more restrictive way. The Jarlskog invariants of non-unitary CP violation are calculated, and the discovery potential of such new CP-violating effects in the near detector of a neutrino factory is discussed.

Place, publisher, year, edition, pages
Elsevier B.V. , 2009. Vol. 679, no 3, 242-248 p.
Keyword [en]
heavy majorana neutrinos, line-experiment-simulator, standard model, oscillation experiments, masses, nonconservation, leptons, physics, decays, number
National Category
Subatomic Physics
Identifiers
URN: urn:nbn:se:kth:diva-18752DOI: 10.1016/j.physletb.2009.07.038ISI: 000269753300015ScopusID: 2-s2.0-68649101806OAI: oai:DiVA.org:kth-18752DiVA: diva2:336799
Funder
Swedish Research Council, 621-2008-4210
Note
QC 20100525Available from: 2011-06-21 Created: 2010-08-05 Last updated: 2011-06-21Bibliographically approved

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Publisher's full textScopusPhysics Letters Bhttp://arxiv.org/abs/0905.2889

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