Global analysis of solar neutrino and KamLAND data

被引：43

作者：

Balantekin, AB ^{[1
]}

Yüksel, H ^{[1
]}

机构：

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

来源：

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS | 2003年 / 29卷 / 04期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1088/0954-3899/29/4/305

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

A global analysis of the data from all the solar neutrino experiments combined with the recent KamLAND data is presented. A formula frequently used in the literature gives survival probability for three active solar neutrino flavours in terms of a suitably modified two-flavour survival probability. Corrections to this formula, which depend on theta(13) and deltam(31)(2), are calculated. For the mass scale suggested by the atmospheric neutrino experiments the contributions of 6 2 deltam(31)(2) to these corrections are found to be negligible. The role of 013 in solar neutrino physics is elaborated. For electron neutrino oscillations into another active flavour, we find best fit values of tan(2) theta(12) similar to 0.46, tan(2) theta(13) similar to 0 and deltam(21)(2) similar to 7.1 x 10(-5) eV(2). It is found that the combined solar neutrino and KamLAND data provide the limit cos(4) theta(13) > 0.8 at the 90% confidence level.

引用

页码：665 / 682

页数：18

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