Gamma Rays and the Decay of Neutrinos from SN1987A

Details Gamma Rays and the Decay of Neutrinos from SN1987A Gamma Rays and the Decay of Neutrinos from SN1987A

1996-01-19

arxiv.org/abs/astro-ph/9601104v1

Phys.Rev.D55:7951-7959,1997

Astronomy and Astrophysics

Astrophysics

17 pages, 6 postscript figures, uses revtex, epsf.sty. Submitted to PRD. Also available at file://ftp.cita.utoronto.ca/cita/

Scientific paper

10.1103/PhysRevD.55.7951

We calculate limits to the properties of massive, unstable neutrinos using data from gamma-ray detectors on the Pioneer Venus Orbiter Satellite; a massive neutrino emitted from SN1987A that decayed in flight and produced gamma rays would be detectable by this instruments. The lack of such a signal allows us to constrain the branching ratio to photons ($\Bg$), mass ($\mnu$), and radiative lifetime ($\tau_\gamma = \tau/\Bg$). For low mass ($m

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