LIMIT ON GAMMA(PI-0-]NU-NU-BAR) FROM SN1987A

被引：10
|
作者：
NATALE, AA
机构：
[1] Instituto de Física Teórica, Universidade Estadual Paulista, 01405 São Paulo, SP
来源：
PHYSICS LETTERS B | 1991年 / 258卷 / 1-2期
关键词：
D O I：
10.1016/0370-2693(91)91237-P
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We consider the possible neutrino emission from SN1987A generated through the process gamma-gamma --> pi-0 --> nu-nuBAR, which is permitted when the neutrinos have a right-handed component. This energy-loss mechanism is consistent with the supernova neutrino observations if the decay rate-GAMMA (pi-0 --> nu-nuBAR) < (0.15-6.3) X 10(-13) eV. When the reaction pi-0 --> nu-nuBAR is mediated by weak gauge bosons the limit on the decay rate allows us to obtain constraints on neutrino masses, m-nu < 5-27 keV, depending on the core temperature.
引用
收藏
页码：227 / 230
页数：4
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