Inferred 4.4 eV upper limits on the muon- and tau-neutrino masses

被引：40

作者：

Barger, V

Weiler, TJ

Whisnant, K

机构：

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

[2] Vanderbilt Univ, Dept Phys & Astron, Nashville, TN 37235 USA

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

来源：

PHYSICS LETTERS B | 1998年 / 442卷 / 1-4期

关键词：

D O I：

10.1016/S0370-2693(98)01227-1

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

By combining experimental constraints from atmospheric and solar neutrino oscillations and the tritium beta decay endpoint, we infer upper limits of 4.4 eV on the nu(mu) and nu(tau) masses, if the universe consists of three neutrinos. For hierarchical mass spectra m(3) >> m(1),m(2) or m(3) similar or equal to m(2) >> m(1) we infer that m(nu alpha) less than or similar to 0.08 eV for alpha = e,mu,tau. In a four neutrino universe, and assuming neutrino oscillations also account for the LSND experimental results, m(nu alpha) less than or similar to 5.4 eV. We also obtain lower limits on the masses. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：255 / 258

页数：4

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