Please use this identifier to cite or link to this item:
https://hdl.handle.net/2445/12504
Title: | Four-neutrino oscillation solutions of the solar neutrino problem |
Author: | Giunti, Carlo González García, Ma. Concepción Peña Garay, Carlos |
Keywords: | Astrofísica nuclear Col·lisions (Física nuclear) Particles (Nuclear physics) Neutrins solars Nuclear astrophysics Collisions (Nuclear physics) Particles (Nuclear physics) Solar neutrinos |
Issue Date: | 2000 |
Publisher: | The American Physical Society |
Abstract: | We present an analysis of the neutrino oscillation solutions of the solar neutrino problem in the framework of four-neutrino mixing where a sterile neutrino is added to the three standard ones. We perform a fit to the full data set corresponding to the 825-day Super-Kamiokande data sample as well as to Chlorine, GALLEX and SAGE and Kamiokande experiments. In our analysis we use all measured total event rates as well as all Super-Kamiokande data on the zenith angle dependence and the recoil electron energy spectrum. We consider both transitions via the Mikheyev-Smirnov-Wolfenstein (MSW) mechanism as well as oscillations in vacuum (just-so) and find the allowed solutions for different values of the additional mixing angles. This framework permits transitions into active or sterile neutrinos controlled by the additional parameter $\cos^2(\vartheta_{23}) \cos^2(\vartheta_{24})$ . We discuss the maximum allowed values of this additional mixing parameter for the different solutions. |
Note: | Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevD.62.013005 |
It is part of: | Physical Review D, 2000, vol. 62, núm. 1, p. 013005-1-013005-13 |
URI: | https://hdl.handle.net/2445/12504 |
Related resource: | http://dx.doi.org/10.1103/PhysRevD.62.013005 |
ISSN: | 0556-2821 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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