Examination of neutrino oscillations using high-energy atmospheric neutrino data from Kamiokande

被引：6

作者：

Oyama, Y ^{[1
]}

机构：

[1] KEK, High Energy Accelerator Res Org, Ibaraki, Osaka 305, Japan

来源：

PHYSICAL REVIEW D | 1998年 / 57卷 / 11期

关键词：

D O I：

10.1103/PhysRevD.57.R6594

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The possibility of neutrino oscillations using high-energy atmospheric neutrinos are reconsidered. High-energy(> 10 GeV) electron events from atmospheric electron neutrinos are drastically enhanced in the case of nu(e) <-> nu(mu) oscillation. This should be compared to the conventional neutrino oscillation analysis, in which only disappearance of upward-going muons was examined. Constraints for nu(e) <-> nu(mu) oscillation are calculated, using data of the Kamiokande experiment. The resulting 90% C.L. upper limits on the neutrino oscillation parameters, Delta m(2) and sin(2)2 theta, are Delta m(2)<5.6 x 10(-3) eV(2) for sin(2)2 theta=1 and sin(2)2 theta<0.60 for large Delta m(2), respectively. This result excludes most of the allowed region for the nu(e) <-> nu(mu) oscillation, which was obtained from a recent sub-GeV and multi-GeV atmospheric neutrino analysis.

引用

页码：R6594 / R6598

页数：5

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