L/E-flatness of the electron-like event ratio, in Super-Kamiokande and a degeneracy, in neutrino masses

被引：92

作者：

Stancu, I ^{[1
]}

Ahluwalia, DV

机构：

[1] Univ Calif Riverside, Dept Phys, Riverside, CA 92521 USA

[2] Univ Aut Zacatecas, Escuela Fis, Zacatecas 98068, Mexico

来源：

PHYSICS LETTERS B | 1999年 / 460卷 / 3-4期

关键词：

D O I：

10.1016/S0370-2693(99)00811-4

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We show that the L/E-flatness of the electron-like event ratio in the Super-Kamiokande atmospheric neutrino data implies the equality of the expectation values for the muon and tau neutrino masses. We establish this result by obtaining a set of three constraints on the neutrino-oscillation mixing matrix as contained in the indicated flatness. The resulting 3 x 3 neutrino-oscillation matrix depends only on one angle. A remarkable result that follows directly from this matrix is the consistency between the mixing angles observed by LSND and Super-Kamiokande. (C) 1999 Published by Elsevier Science B.V. All rights reserved.

引用

页码：431 / 436

页数：6

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