Non-unitary neutrino propagation from neutrino decay

Berryman, Jeffrey M.; de Gouvêa, André; Hernández, Daniel; Oliveira, Roberto L. N.

doi:10.1016/j.physletb.2015.01.002

Title: Non-unitary neutrino propagation from neutrino decay

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Abstract

Neutrino propagation in space–time is not constrained to be unitary if very light states – lighter than the active neutrinos – exist into which neutrinos may decay. If this is the case, neutrino flavor-change is governed by a handful of extra mixing and “oscillation” parameters, including new sources of CP-invariance violation. We compute the transition probabilities in the two- and three-flavor scenarios and discuss the different phenomenological consequences of the new physics. These are qualitatively different from other sources of unitarity violation discussed in the literature.

Authors:: Berryman, Jeffrey M.; de Gouvêa, André; Hernández, Daniel; Oliveira, Roberto L. N.

Publication Date:: Sun Mar 01 00:00:00 EST 2015

Research Org.:: Northwestern Univ., Evanston, IL (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1197970

Alternate Identifier(s):: OSTI ID: 1192063

Grant/Contract Number:: FG02-91ER40684; 2013/11651-2

Resource Type:: Published Article

Journal Name:: Physics Letters B

Additional Journal Information:: Journal Name: Physics Letters B Journal Volume: 742 Journal Issue: C; Journal ID: ISSN 0370-2693

Publisher:: Elsevier

Country of Publication:: Netherlands

Language:: English

Subject:: 79 ASTRONOMY AND ASTROPHYSICS

Citation Formats


                    Berryman, Jeffrey M., de Gouvêa, André, Hernández, Daniel, and Oliveira, Roberto L. N. Non-unitary neutrino propagation from neutrino decay.  Netherlands: N. p., 2015. 
Web.  doi:10.1016/j.physletb.2015.01.002.

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                    Berryman, Jeffrey M., de Gouvêa, André, Hernández, Daniel, & Oliveira, Roberto L. N. Non-unitary neutrino propagation from neutrino decay.  Netherlands.  https://doi.org/10.1016/j.physletb.2015.01.002

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                    Berryman, Jeffrey M., de Gouvêa, André, Hernández, Daniel, and Oliveira, Roberto L. N. Sun .  
"Non-unitary neutrino propagation from neutrino decay".  Netherlands.  https://doi.org/10.1016/j.physletb.2015.01.002.

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@article{osti_1197970,

  title        = {Non-unitary neutrino propagation from neutrino decay},

  author       = {Berryman, Jeffrey M. and de Gouvêa, André and Hernández, Daniel and Oliveira, Roberto L. N.},

  abstractNote = {Neutrino propagation in space–time is not constrained to be unitary if very light states – lighter than the active neutrinos – exist into which neutrinos may decay. If this is the case, neutrino flavor-change is governed by a handful of extra mixing and “oscillation” parameters, including new sources of CP-invariance violation. We compute the transition probabilities in the two- and three-flavor scenarios and discuss the different phenomenological consequences of the new physics. These are qualitatively different from other sources of unitarity violation discussed in the literature.},

  doi          = {10.1016/j.physletb.2015.01.002},

  journal      = {Physics Letters B},

  number       = C,

  volume       = 742,

  place        = {Netherlands},

  year         = {Sun Mar 01 00:00:00 EST 2015},

  month        = {Sun Mar 01 00:00:00 EST 2015}

}

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