Limits on νe and (ν)overbare disappearance from Gallium and reactor experiments

被引：155

作者：

Acero, Mario A. ^{[1
,2
,3
]}

Giunti, Carlo ^{[2
]}

Laveder, Marco ^{[4
,5
]}

机构：

[1] Univ Turin, Dipartimento Fis Teor, I-10125 Turin, Italy

[2] Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy

[3] Univ Savoie, Lab Annecy le Vieux Phys Thor, CNRS, IN2P3, F-74941 Annecy Le Vieux, France

[4] Univ Padua, Dipartimento Fis G Galilei, I-35131 Padua, Italy

[5] Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy

来源：

PHYSICAL REVIEW D | 2008年 / 78卷 / 07期

关键词：

D O I：

10.1103/PhysRevD.78.073009

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The deficit observed in the Gallium radioactive source experiments is interpreted as a possible indication of the disappearance of electron neutrinos. In the effective framework of two-neutrino mixing we obtain sin(2)2 Theta greater than or similar to 0.03 and Delta m(2)greater than or similar to 0.1 eV(2). The compatibility of this result with the data of the Bugey and Chooz reactor short-baseline antineutrino disappearance experiments is studied. It is found that the Bugey data present a hint of neutrino oscillations with 0.02 less than or similar to sin(2)2 Theta less than or similar to 0.08 and Delta m(2)approximate to 1.8 eV(2), which is compatible with the Gallium allowed region of the mixing parameters. This hint persists in the combined analyses of Bugey and Chooz data, of Gallium and Bugey data, and of Gallium, Bugey, and Chooz data.

引用

页数：10

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