Spin-flavor oscillations and neutrinos from SN 1987A

被引：3

作者：

Bruggen, M

机构：

[1] Institute of Astronomy, University of Cambridge, Cambridge, CB3 0HA, Madingley Road

来源：

PHYSICAL REVIEW D | 1997年 / 55卷 / 10期

关键词：

D O I：

10.1103/PhysRevD.55.5876

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The neutrino signal from SN 1987A is analyzed with respect to spin-flavor oscillations between electron antineutrinos <(upsilon)over bar (e)> and muon neutrinos upsilon(mu) by means of a maximum likelihood analysis. Following Jegerlehner et al. best fit values for the total energy released in neutrinos, E-t, and the temperature of the electron antineutrino T(<(upsilon)over bar e>), for a range of mixing parameters and progenitor models are calculated. In particular the dependence of the inferred quantities on the metallicity of the supernova is investigated and the uncertainties involved in using the neutrino signal to determine the neutrino magnetic moment are pointed out.

引用

页码：5876 / 5880

页数：5

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