Effects of Spin-Flavor Conversion in Supernova Neutrino Signal

被引：0

作者：

Yoshida, Takashi ^{[1
]}

Takamura, Akira ^{[1
,2
]}

Kimura, Keiichi ^{[1
,3
]}

Yokomakura, Hidekazu ^{[1
,3
]}

Kawagoe, Shiou ^{[1
,4
]}

Kajino, Toshitaka ^{[1
,4
]}

机构：

[1] Natl Inst Nat Sci, Natl Astron Observ Japan, Div Theoret Astron, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan

[2] Toyota Natl Coll Technol, Dept Math, Toyota, Japan

[3] Nagoya Univ, Grad Sch Sci, Dept Phys, Nagoya, Aichi, Japan

[4] Univ Tokyo, Grad Sch Sci, Dept Astron, Tokyo, Japan

来源：

PERSPECTIVES IN NUCLEAR PHYSICS | 2009年 / 1120卷

关键词：

neutrinos; neutrino magnetic moment; supernovae; NUCLEOSYNTHESIS;

D O I：

暂无

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

Majorana neutrinos with a finite transition magnetic moment are expected to convert their flavors by spin precession in a strong magnetic field of a supernova. We investigate detailed dependence of the resonant spin-flavor conversions on electron fraction Y-e in the innermost region of the supernova assuming the inverted mass hierarchy. The observed supernova (nu) over bar (e) spectrum is expected to be larger in Y-e > 0.5 than that in Y-e < 0.5. Therefore, the time variation of supernova (nu) over bar (e) signal would indicate Majorana neutrinos with a finite transition magnetic moment.

引用

页码：298 / +

页数：2

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