Astrophysical implications of the induced neutrino magnetic moment from large extra dimensions

被引：48

作者：

McLaughlin, GC ^{[1
]}

Ng, JN ^{[1
]}

机构：

[1] TRIUMF, Vancouver, BC V6T 2A3, Canada

来源：

PHYSICS LETTERS B | 1999年 / 470卷 / 1-4期

基金：

加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1016/S0370-2693(99)01282-4

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Theories involving extra dimensions, a low (similar to TeV) string scale and bulk singlet neutrinos will produce an effective neutrino magnetic moment which may be large (less than or similar to 10(-11)mu(B)). The effective magnetic moment increases with neutrino energy, and therefore high energy reactions are most useful for limiting the allowed number of extra dimensions. We examine constraints from both neutrino-electron scattering and also astrophysical environments. We find that supernova energy loss considerations require a number of extra dimensions, n greater than or equal to 2, for an electron neutrino-bulk neutrino Yukawa coupling of order 1. (C) 1999 Published by Elsevier Science B.V. All rights reserved.

引用

页码：157 / 162

页数：6

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