LSND anomaly from CPT violation in four-neutrino models

被引：55

作者：

Barger, V

Marfatia, D ^{[1
]}

Whisnant, K

机构：

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

[2] Boston Univ, Dept Phys, Boston, MA 02215 USA

[3] Iowa State Univ, Dept Phys, Ames, IA 50011 USA

来源：

PHYSICS LETTERS B | 2003年 / 576卷 / 3-4期

关键词：

D O I：

10.1016/j.physletb.2003.10.004

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The LSND signal for (ν) over bar (mu) --> (ν) over bar (e) oscillations has prompted supposition that there may be a fourth light neutrino or that CPT is violated. Neither explanation provides a good fit to all existing neutrino data. We examine the even more speculative possibility that a four-neutrino model with CPT violation can explain the LSND effect and remain consistent with all other data. We find that models with a 3 + 1 mass structure in the neutrino sector are viable; a 2 + 2 structure is permitted only in the antineutrino sector. (C) 2003 Published by Elsevier B.V.

引用

页码：303 / 308

页数：6

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