Constraints on neutrino mixing

被引：50

作者：

Balantekin, AB

Fuller, GM

机构：

[1] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA

[2] Univ Washington, Inst Nucl Theory, Seattle, WA 98195 USA

[3] Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA

来源：

PHYSICS LETTERS B | 1999年 / 471卷 / 2-3期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/S0370-2693(99)01371-4

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We explore the implications of imposing the constraint that two neutrino flavors (which for definiteness we take to be nu(mu) and nu(tau)) are similarly coupled to the mass basis in addition to the unitarity constraints, We allow three active and an arbitrary number of sterile neutrinos. We show that in this scheme one of the mass eigenstates decouples from the problem, reducing the dimension of the flavor space by one. This result allows significant simplification in the treatment of matter-enhanced neutrino transformation where multiple flavors and level crossings are involved. (C) 1999 Published by Elsevier Science B.V. All rights reserved.

引用

页码：195 / 201

页数：7

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