Are there νμ or ντ in the flux of solar neutrinos on Earth?: art. no. 033006

被引：10

作者：

Giunti, C

机构：

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

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

来源：

PHYSICAL REVIEW D | 2002年 / 65卷 / 03期

关键词：

D O I：

10.1103/PhysRevD.65.033006

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Using the model independent method of Villante, Fiorentini, Lisi, Fogli, and Palazzo, and the rates measured in the SNO and Super-Kamiokande solar neutrino experiment, we calculate the amount of active nu(mu) or nu(tau) present in the flux of solar neutrinos on Earth. We show that the probability of nu(e) --> nu(mu,tau) transitions is larger than zero at 99.89% C.L. We find that the averaged flux of nu(mu,tau) on Earth is larger than 0.17 times the B-8 nu(e) flux predicted by the BPB 2000 Standard Solar Model at 99% C.L. We discuss also the consequences of possible nu(e)-->(ν) over bar (mu,tau) or nu(e)-->(ν) over bar (e) transitions of solar neutrinos. We derive a model-independent lower limit of 0.52 at 99% C.L. for the ratio of the B-8 nu(e) flux produced in the Sun and its value in the BPB 2000 Standard Solar Model.

引用

页数：4

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