Present status of solar and atmospheric neutrinos

被引：2
|
作者：
Nakahata, M [1 ]
机构：
[1] Univ Tokyo, Inst Cosm Ray Res, Kamioka Observ, Kamioka, Gifu 5061205, Japan
来源：
NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS | 1999年 / 76卷
关键词：
D O I：
10.1016/S0920-5632(99)00504-6
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
The results from Super-Kamiokande on atmospheric neutrinos and solar neutrinos are presented. The analyses of atmospheric neutrinos using fully contained and partially contained events, upward-through-going muons, and upward-stopping muons, all show evidence for nu(mu) oscillations. The obtained, neutrino oscillation parameters are Delta m(2) of 10(-3) - 10(-2) eV(2) and sin(2) 2 theta > 0.8. The observed solar neutrino flux is 47 % of the expectation from the standard solar model. No sinificant day/night difference is observed and a solar model independent limit on neutrino oscillation parameters is obtained. The spectral shape comparison of the recoil electrons between the data and the expectation gives 4.8 % confidence level.
引用
收藏
页码：425 / 434
页数：10
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