Status of the solution to the solar neutrino problem based on nonstandard neutrino interactions

被引：88

作者：

Bergmann, S ^{[1
]}

Guzzo, MM

de Holanda, PC

Krastev, PI

Nunokawa, H

机构：

[1] Weizmann Inst Sci, Dept Particle Phys, IL-76100 Rehovot, Israel

[2] Univ Estadual Campinas, UNICAMP, Inst Fis Gleb Wataghin, BR-13083970 Campinas, SP, Brazil

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

来源：

PHYSICAL REVIEW D | 2000年 / 62卷 / 07期

关键词：

D O I：

10.1103/PhysRevD.62.073001

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We analyze the current status of the solution to the solar neutrino problem based both on (a) nonstandard flavor-changing neutrino interactions (FCNI) and (b) nonuniversal flavor diagonal neutrino interactions (FDNI). We find that FCNI and FDNI with matter in the Sun as well as in the Earth provide a good fit not only to the total rate measured by all solar neutrino experiments but also to the day-night and seasonal variations of the event rate, as well as the recoil electron energy spectrum measured by the SuperKamiokande Collaboration This solution does not require massive neutrinos and neutrino mixing in vacuum. Stringent experimental constraints on FCNI from bounds on lepton flavor violating decays and on FDNI from limits on lepton universality violation rule out nu(e) --> nu(mu) transitions induced by new physics as a solution to the solar neutrino problem. However, a solution involving nu(e) --> nu(tau) transitions is viable and could be tested independently by the upcoming B factories if flavor violating tan decays would be observed at a rate close to the present upper bounds.

引用

页码：1 / 16

页数：16

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