A search for radiative neutrino decay from supernovae

被引：0

作者：

Miller, RS ^{[1
]}

Ryan, JM ^{[1
]}

Svoboda, RC ^{[1
]}

机构：

[1] LOUISIANA STATE UNIV,DEPT PHYS & ASTRON,BATON ROUGE,LA 70803

来源：

ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES | 1996年 / 120卷 / 04期

关键词：

elementary particles; supernovae; SN; 1987A; 1993J; dark matter;

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We have performed a systematic search for massive neutrinos by looking for the characteristic photon spectrum of a possible radiative decay mode. The search was performed using the COMPTEL instrument aboard the Compton Gamma-Ray Observatory (CGRO) by observing relatively nearby type-II supernovae that are known to be copious producers of neutrinos. This search was sensitive to neutrino masses m(nu) > 100 eV, lifetimes similar to 10(5) less than or equal to tau(nu) less than or equal to 10(15) seconds, and branching ratios B-gamma greater than or equal to 10(-5). We have found no evidence for a radiative decay mode and thus exclude a new region of m(nu)/tau(nu)/B-gamma-parameter space. In addition, we have re-analyzed the null results of the observation made with the Gamma-Ray Spectrometer aboard the Solar Maximum Mission satellite measurements of SN 1987A.

引用

页码：C635 / C636

页数：2

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