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Related papers: Mixed MSW and Vacuum Solutions of Solar Neutrino P…

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Assuming three flavour neutrino mixing takes place in vacuum, we investigate the possibility that the solar nu_e take part in MSW transitions in the Sun due to Delta m^2_{31} from 10^{-7} eV^2 to 10^{-4} eV^2, followed by long wave length…

High Energy Physics - Phenomenology · Physics 2009-03-20 Q. Y. Liu , S. T. Petcov

It is shown that the hybrid MSW + VO solution of the solar neutrino problem, according to which the solar nu_e undergo matter-enhanced transitions into nu_mu, nu_tau in the Sun followed by long wave length (about 1.5 10^8 km) nu_e -> nu_mu,…

High Energy Physics - Phenomenology · Physics 2009-10-30 B. C. Allanach , G. K. Leontaris , S. T. Petcov

We present a systematic analysis of the three-flavor Mikheyev-Smirnov-Wolfenstein (MSW) oscillation solutions to the solar neutrino problem, in the hypothesis that the two independent neutrino square mass differences, $\delta m^2$ and…

High Energy Physics - Phenomenology · Physics 2009-10-07 G. L. Fogli , E. Lisi , D. Montanino

We determine the neutrino parameters for MSW and vacuum oscillations (active and sterile neutrinos) that are allowed by the separate, and collective, imposition of the constraints from total event rates in the chlorine, GALLEX, SAGE, and…

High Energy Physics - Phenomenology · Physics 2009-03-02 J. N. Bahcall , P. I. Krastev , A. Yu. Smirnov

We investigate the current status of the long-wavelength vacuum oscillation solution to the solar neutrino problem and to what extent the presence of a third neutrino can affect and modify it. Assuming that the smaller mass squared…

High Energy Physics - Phenomenology · Physics 2014-11-17 A. M. Gago , H. Nunokawa , R. Zukanovich Funchal

Solar model independent tests of the vacuum oscillation and MSW solutions of the solar neutrino problem are considered. Detailed predictions for time (seasonal) variations of the signals in the future solar neutrino detectors (SNO, Super…

High Energy Physics - Phenomenology · Physics 2009-09-25 P. I. Krastev , S. T. Petcov

We perform an updated phenomenological analysis of the Mikheyev-Smirnov-Wolfenstein (MSW) solutions of the solar neutrino problem, assuming oscillations between two and three neutrino families. The analysis includes the total rates of the…

High Energy Physics - Phenomenology · Physics 2009-10-07 G. L. Fogli , E. Lisi , D. Montanino , A. Palazzo

The neutrino long wavelength (just-so) oscillation is reconsidered as a solution to the solar neutrino problem. In the light of the presently updated results of the four solar neutrino experiments, the data fit in the just-so scenario…

High Energy Physics - Phenomenology · Physics 2009-10-28 Zurab G. Berezhiani , Anna Rossi

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…

High Energy Physics - Phenomenology · Physics 2009-10-31 C. Giunti , M. C. Gonzalez-Garcia , C. Peña-Garay

We present an updated analysis of astrophysical solutions, two-flavor MSW solutions, and vacuum oscillation solutions to the solar neutrino anomaly. The recent results of each of the five solar neutrino experiments are incorporated,…

High Energy Physics - Phenomenology · Physics 2009-10-30 Naoya Hata , Paul Langacker

The solar neutrino problem is reviewed and the possible vacuum oscillation and MSW solutions of the problem are considered.

High Energy Physics - Phenomenology · Physics 2009-10-31 S. T. Petcov

The vacuum oscillation (VO) solution to the solar anomaly requires an extremely small neutrino mass splitting, Delta m^2_{sol}\leq 10^{-10} eV^2. We study under which circumstances this small splitting (whatever its origin) is or is not…

High Energy Physics - Phenomenology · Physics 2010-02-03 J. A. Casas , J. R. Espinosa , A. Ibarra , I. Navarro

We present an updated global analysis of two-flavor MSW solutions to the solar neutrino problem in terms of conversions of nu_e into active or sterile neutrinos. We perform a fit to the full data set corresponding to the 825-day…

High Energy Physics - Phenomenology · Physics 2009-09-17 M. C. Gonzalez-Garcia , P. C. de Holanda , C. Peña-Garay , J. W. F. Valle

Vacuum oscillations are considered for the combined solar neutrino observations, including the Kamiokande II spectrum data and incorporating theoretical uncertainties and their correlations. Despite the conceptual difficulty of the fine…

High Energy Physics - Phenomenology · Physics 2007-05-23 Naoya Hata

With one \Delta m^2 of the appropriate order of magnitude to solve the atmospheric neutrino problem, we study the resulting three-generation vacuum-oscillation fit to the solar neutrino flux. An explanation of the atmospheric neutrino…

High Energy Physics - Phenomenology · Physics 2009-10-31 P. Osland , G. Vigdel

We examine the maximal $\nu_e \to \nu_s$ solution to the solar neutrino problem. This solution can be motivated by the exact parity model and other theories. The $\nu_e$ survival probability exhibits one of three qualitatively different…

High Energy Physics - Phenomenology · Physics 2009-10-31 R. M. Crocker , R. Foot , R. R. Volkas

We present an updated analysis of the solar neutrino problem in terms of both Mikheyev-Smirnov-Wolfenstein (MSW) and vacuum neutrino oscillations, with the inclusion of the preliminary data collected by the SuperKamiokande experiment during…

High Energy Physics - Phenomenology · Physics 2009-10-07 G. L. Fogli , E. Lisi , D. Montanino

The most promising solution to the solar neutrino problem are neutrino oscillations, which usually are analyzed within the reduced 2-flavor scheme, because the solutions found therein reasonably well reproduce the recent data of…

High Energy Physics - Phenomenology · Physics 2007-05-23 Helmut Schlattl

We find that vacuum oscillations (VO), large-mixing-angle and small-mixing-angle MSW solutions to the solar neutrino problem (SNP) give all very good fits to the most recent results. Measurements of the $^7$Be flux can, in some cases,…

High Energy Physics - Phenomenology · Physics 2011-01-04 E. Calabresu , N. Ferrari , G. Fiorentini , M. Lissia

We present a solution of the solar neutrino deficit using three flavors of neutrinos within the R-parity non-conserving supersymmetric model. In vacuum, mass and mixing is restricted to the nu(mu)-nu(tau) sector only, which we choose in…

High Energy Physics - Phenomenology · Physics 2009-01-07 Rathin Adhikari , Arunansu Sil , Amitava Raychaudhuri
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