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Title: Non-unitary neutrino propagation from neutrino decay

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:
 [1];  [1];  [1];  [2]
  1. Northwestern Univ., Evanston, IL (United States). Dept. of Physics and Astronomy.
  2. Northwestern Univ., Evanston, IL (United States). Dept. of Physics and Astronomy; Gleb Wataghin Univ. Estadual de Campinas, Campinas, Sao Paulo (Brazil)
Publication Date:
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:
Journal Article: Published Article
Journal Name:
Physics Letters. Section B
Additional Journal Information:
Journal Volume: 742; Journal Issue: C; Journal ID: ISSN 0370-2693
Publisher:
Elsevier
Country of Publication:
United States
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. United States: N. p., 2015. Web. doi:10.1016/j.physletb.2015.01.002.
Berryman, Jeffrey M., de Gouvêa, André, Hernández, Daniel, & Oliveira, Roberto L. N. Non-unitary neutrino propagation from neutrino decay. United States. doi:10.1016/j.physletb.2015.01.002.
Berryman, Jeffrey M., de Gouvêa, André, Hernández, Daniel, and Oliveira, Roberto L. N. Sun . "Non-unitary neutrino propagation from neutrino decay". United States. doi:10.1016/j.physletb.2015.01.002.
@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. Section B},
number = C,
volume = 742,
place = {United States},
year = {Sun Mar 01 00:00:00 EST 2015},
month = {Sun Mar 01 00:00:00 EST 2015}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1016/j.physletb.2015.01.002

Citation Metrics:
Cited by: 9 works
Citation information provided by
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