Inverted hierarchy of neutrino masses disfavored by supernova 1987A

被引：84

作者：

Minakata, H

Nunokawa, H

机构：

[1] Tokyo Metropolitan Univ, Dept Phys, Hachioji, Tokyo 1920397, Japan

[2] Univ Tokyo, Inst Cosm Ray Res, Res Ctr Cosm Neutrinos, Kashiwa, Chiba 2778582, Japan

[3] Korea Inst Adv Study, Sch Phys, Seoul 130012, South Korea

[4] Univ Estadual Campinas, Inst Fis Gleb Wataghin, UNICAMP, BR-13083970 Campinas, SP, Brazil

来源：

PHYSICS LETTERS B | 2001年 / 504卷 / 04期

基金：

巴西圣保罗研究基金会;

关键词：

D O I：

10.1016/S0370-2693(01)00254-4

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We discuss the flavor conversion of supernova neutrinos in the three-flavor mixing scheme of neutrinos. We point out that by neutrino observation from supernova one can discriminate the inverted hierarchy of neutrino masses from the normal one if s(13)(2) greater than or similar to a few x 10(-4), irrespective of which oscillation solution to the solar neutrino problem is realized in nature. We perform an analysis of data of SN1987A and obtain a strong indication that the inverted mass hierarchy is disfavored unless s(13)(2) less than or similar to a few x 10(-4). (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：301 / 308

页数：8

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