Gallium and Reactor Neutrino Anomalies

被引:2
|
作者
Acero, M. A. [1 ,2 ,3 ]
Giunti, C. [2 ]
Laveder, M. [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, CNRS, Lab Annecy Le Vieux Phys Thor, 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
关键词
BASE-LINE; OSCILLATIONS; SEARCH;
D O I
10.1016/j.nuclphysbps.2009.02.050
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 observed deficit in the Gallium radioactive source experiments may be interpreted as a possible indication of active-sterile v. mixing. 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 reactor (nu) over bar (e) 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 1.8eV(2), which is compatible with the Gallium allowed region of the mixing parameters. This hint persists in the combined analysis of Gallium, Bugey, and Chooz data.
引用
收藏
页码:211 / 213
页数:3
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