LIMIT ON VBARE MASS FROM OBSERVATION OF THE BETA-DECAY OF MOLECULAR TRITIUM

被引：153

作者：

ROBERTSON, RGH ^{[1
]}

BOWLES, TJ ^{[1
]}

STEPHENSON, GJ ^{[1
]}

WARK, DL ^{[1
]}

WILKERSON, JF ^{[1
]}

KNAPP, DA ^{[1
]}

机构：

[1] UNIV CALIF LAWRENCE LIVERMORE NATL LAB,DIV PHYS,LIVERMORE,CA 94550

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 67卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.67.957

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the most sensitive direct upper limit set on the mass m(v) of the electron antineutrino. Our measurements of the shape of the beta-decay spectrum of free molecular tritium yield, under the assumption of no new physics other than that of mass, a central value for m(v)2 of -147 +/- 68 +/- 41 eV2, which corresponds to an upper limit or 9.3 eV (95% confidence level) on m(v). The result is in clear disagreement with a reported value of 26(5) eV.

引用

页码：957 / 960

页数：4

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