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Title: Cosmological Neutrino Mass Detection: The Best Probe of Neutrino Lifetime

Abstract

Future cosmological data may be sensitive to the effects of a finite sum of neutrino masses even as small as {approx}0.06 eV, the lower limit guaranteed by neutrino oscillation experiments. We show that a cosmological detection of neutrino mass at that level would improve by many orders of magnitude the existing limits on neutrino lifetime, and as a consequence, on neutrino secret interactions with (quasi)massless particles as in Majoron models. On the other hand, neutrino decay may provide a way out to explain a discrepancy < or approx. 0.1 eV between cosmic neutrino bounds and lab data.

Authors:
 [1]
  1. Center for Particle Astrophysics, Fermi National Accelerator Laboratory, Batavia, Illinois 60510-0500 (United States)
Publication Date:
OSTI Identifier:
20951266
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review Letters; Journal Volume: 98; Journal Issue: 17; Other Information: DOI: 10.1103/PhysRevLett.98.171301; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; COSMIC NEUTRINOS; LIFETIME; MASS; NEUTRINO OSCILLATION; PARTICLE DECAY

Citation Formats

Serpico, Pasquale D. Cosmological Neutrino Mass Detection: The Best Probe of Neutrino Lifetime. United States: N. p., 2007. Web. doi:10.1103/PHYSREVLETT.98.171301.
Serpico, Pasquale D. Cosmological Neutrino Mass Detection: The Best Probe of Neutrino Lifetime. United States. doi:10.1103/PHYSREVLETT.98.171301.
Serpico, Pasquale D. Fri . "Cosmological Neutrino Mass Detection: The Best Probe of Neutrino Lifetime". United States. doi:10.1103/PHYSREVLETT.98.171301.
@article{osti_20951266,
title = {Cosmological Neutrino Mass Detection: The Best Probe of Neutrino Lifetime},
author = {Serpico, Pasquale D.},
abstractNote = {Future cosmological data may be sensitive to the effects of a finite sum of neutrino masses even as small as {approx}0.06 eV, the lower limit guaranteed by neutrino oscillation experiments. We show that a cosmological detection of neutrino mass at that level would improve by many orders of magnitude the existing limits on neutrino lifetime, and as a consequence, on neutrino secret interactions with (quasi)massless particles as in Majoron models. On the other hand, neutrino decay may provide a way out to explain a discrepancy < or approx. 0.1 eV between cosmic neutrino bounds and lab data.},
doi = {10.1103/PHYSREVLETT.98.171301},
journal = {Physical Review Letters},
number = 17,
volume = 98,
place = {United States},
year = {Fri Apr 27 00:00:00 EDT 2007},
month = {Fri Apr 27 00:00:00 EDT 2007}
}