Neutrino spin oscillations in gravitational fields

被引：45

作者：

Dvornikov, Maxim ^{[1
]}

机构：

[1] Inst Terr Magnetism Ionosphere & Radiowave Propag, Troitsk 142190, Moscow Region, Russia

[2] Hiroshima Univ, Grad Sch Sci, Higashihiroshima 724, Japan

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS D | 2006年 / 15卷 / 07期

关键词：

neutrino spin oscillations; gravitational fields; Schwarzschild metric;

D O I：

10.1142/S021827180600870X

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study neutrino spin oscillations in gravitational fields. The quasi-classical approach is used to describe the neutrino spin evolution. First we examine the case of a weak gravitational field. We obtain the effective Hamiltonian for the description of neutrino spin oscillations. We also receive the neutrino transition probability when a particle propagates in the gravitational field of a rotating massive object. Then we apply the general technique to the description of neutrino spin oscillations in the Schwarzschild metric. The neutrino spin evolution equation for the case of the neutrino motion in the vicinity of a black hole is obtained. The effective Hamiltonian and the transition probability are also derived. We examine the neutrino oscillations process on different circular orbits and analyze the frequencies of spin transitions. The validity of the quasi-classical approach is also considered.

引用

页码：1017 / 1033

页数：17

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