Possible trace of neutrino nonstandard interactions in the supernova

被引:3
|
作者
Das, C. R. [1 ]
Pulido, Joao [1 ]
机构
[1] Inst Super Tecn, Dept Fis, CFTP, P-1049001 Lisbon, Portugal
来源
12TH INTERNATIONAL CONFERENCE ON TOPICS IN ASTROPARTICLE AND UNDERGROUND PHYSICS (TAUP 2011), PTS 1-6 | 2012年 / 375卷
关键词
SOLAR;
D O I
10.1088/1742-6596/375/1/042040
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Neutrino non-standard interactions (NSI), previously introduced for the sun, are studied in the supernova context. For normal hierarchy the probability for electron neutrinos and antineutrinos at low energy (E less than or similar to 0.8 - 0.9 MeV) is substantially increased with respect to the non-NSI case and joins its value for inverse hierarchy which is constant with energy. Also for inverse hierarchy the NSI and non-NSI probabilities are the same for each neutrino and antineutrino species. These are the possible visible effects of NSI in the supernova. The decay into antineutrinos, which has been previously shown to be implied by dense matter, cannot be seen experimentally, owing to the smallness of the antineutrino production probability.
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页数:4
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