Imperial College London
Alternate

Professor Andrew H Jaffe

Faculty of Natural Sciences, Department of Physics

Professor of Astrophysics and Cosmology
 
 
 
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Contact

 

+44 (0)20 7594 7526a.jaffe Website

 
 
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Assistant

 

Miss Louise Hayward +44 (0)20 7594 7679

 
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Location

 

1018BBlackett LaboratorySouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Jaffe:1997:10.1103/PhysRevD.55.7951,
author = {Jaffe, AH and Turner, MS},
doi = {10.1103/PhysRevD.55.7951},
journal = {Physical Review D - Particles, Fields, Gravitation and Cosmology},
pages = {7951--7959},
title = {Limits to radiative neutrino decay from SN 1987A},
url = {http://dx.doi.org/10.1103/PhysRevD.55.7951},
volume = {55},
year = {1997}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - We calculate limits to the properties of massive, unstable neutrinos using data from [Formula presented]-ray detectors on the Pioneer Venus Orbiter (PVO) Spacecraft. The absence of a [Formula presented]-ray signal in the PVO detector constrains the branching ratio to photons [Formula presented], mass [Formula presented], and radiative lifetime [Formula presented]. For low-mass [Formula presented] neutrinos decaying [Formula presented], [Formula presented] for [Formula presented], and [Formula presented] for [Formula presented]; limits for high-mass neutrinos are somewhat weaker due to Boltzmann suppression. We also calculate limits for decays that produce [Formula presented] rays through the bremsstrahlung channel, [Formula presented]. With one exception, the PVO limits are roughly comparable to those from an analysis of data from the Solar Max Mission (SMM) Satellite (which observed at higher [Formula presented]-ray energies but for a much shorter time). For neutrino mass states that are nearly degenerate, [Formula presented], our limits for the mode [Formula presented] become more stringent by a factor as large as [Formula presented], because more decay photons are shifted into the PVO energy window. For this same reason, SMM cannot constrain this case. © 1997 The American Physical Society.
AU  - Jaffe,AH
AU  - Turner,MS
DO  - 10.1103/PhysRevD.55.7951
EP  - 7959
PY  - 1997///
SN  - 1550-7998
SP  - 7951
TI  - Limits to radiative neutrino decay from SN 1987A
T2  - Physical Review D - Particles, Fields, Gravitation and Cosmology
UR  - http://dx.doi.org/10.1103/PhysRevD.55.7951
VL  - 55
ER  -
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