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We re-analyse the resonant spin-flavour (RSF) solutions to the solar neutrino problem in the framework of analytic solutions to the solar magneto-hydrodynamics (MHD) equations. By substantially eliminating the arbitrariness associated to…

High Energy Physics - Phenomenology · Physics 2009-09-17 O. G. Miranda , C. Peã-Garay , T. I. Rashba , V. B. Semikoz , J. W. F. Valle

We discuss the current status of the resonant spin-flavor precession (RSFP) solution to the solar neutrino problem. We perform a fit to all the latest solar neutrino data for various assumed magnetic field profiles in the sun. We show that…

High Energy Physics - Phenomenology · Physics 2011-05-23 M. M. Guzzo , H. Nunokawa

We re-analyse spin-flavour precession solutions to the solar neutrino problem in the light of the recent SNO CC result as well as the 1258--day Super-Kamiokande data and the upper limit on solar anti-neutrinos. In a self-consistent…

High Energy Physics - Phenomenology · Physics 2009-09-17 O. G. Miranda , C. Pena-Garay , T. I. Rashba , V. B. Semikoz , J. W. F. Valle

We examine the prospects for the resonance spin flavour precession as a solution to the solar neutrino problem. We study seven different realistic solar magnetic field profiles and, by numerically integrating the evolution equations,…

High Energy Physics - Phenomenology · Physics 2008-11-26 J. Pulido , E. Kh. Akhmedov

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

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 $\Delta m^2_{31} \sim (10^{-7} - 10^{-4})~eV^2$, followed by long wave length…

High Energy Physics - Phenomenology · Physics 2007-05-23 Qiu-Yu Liu

We re-examine the neutrino decay solution to the solar neutrino problem in the light of the SuperKamiokande (SK) data. For the decay solution the SK spectrum data by its own can provide a fit comparable to the fit obtained from the MSW…

High Energy Physics - Phenomenology · Physics 2016-09-06 Sandhya Choubey , Srubabati Goswami , Debasish Majumdar

We re-examine MSW solutions of the solar neutrino problem in a two flavor scenario taking (a) the results on total rates and the electron energy spectrum from the 1117-day SuperKamiokande (SK) data and (b) those on total rates from the…

High Energy Physics - Phenomenology · Physics 2009-10-31 Srubabati Goswami , Debasish Majumdar , Amitava Raychaudhuri

The current status of oscillation solutions to the Solar Neutrino Problem is reviewed. Four oscillation solutions are discussed in the light of 708d Superkamiokande data: MSW, Just-So VO, VO with Energy-Independent Suppression (EIS) and…

High Energy Physics - Phenomenology · Physics 2011-08-17 V. Berezinsky

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

This work deals with the possible solution of the solar neutrino problem in the framework of the resonant neutrino spin-flavor precession scenario. The event rate results from the solar neutrino experiments as well as the recoil electron…

High Energy Physics - Phenomenology · Physics 2011-05-23 Y. Tayalati , J. Derkaoui

A statistical analysis of the solar neutrino data is presented assuming the solar neutrino deficit to be resolved by the resonant interaction of the neutrino magnetic moment with the solar magnetic field. Four field profiles are…

High Energy Physics - Phenomenology · Physics 2011-05-23 Joao Pulido

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

A global statistical analysis of the pre-SNO solar neutrino data including the rates and recoil electron spectrum in SuperKamiokande is made assuming the solar neutrino deficit to be resolved by the interaction of the neutrino magnetic…

High Energy Physics - Phenomenology · Physics 2007-05-23 Joao Pulido

Althogh KamLAND apparently rules out Resonant-Spin-Flavor-Precession (RSFP) as an explanation of the solar neutrino deficit, the solar neutrino fluxes in the Cl and Ga experiments appear to vary with solar rotation. Added to this evidence,…

High Energy Physics - Phenomenology · Physics 2015-06-25 D. O. Caldwell , P. A. Sturrock

The present status of the neutrino magnetic moment solutions of the solar neutrino problem is summarized. After a brief review of the basics of the neutrino spin and spin-flavor precession I discuss the experimental data and show how the…

High Energy Physics - Phenomenology · Physics 2008-02-03 E. Kh. Akhmedov

Assuming that the solar neutrino deficit observed in the Homestake, SAGE, Gallex, Kamiokande and Super-Kamiokande experiments is due to the interaction of the neutrino transition magnetic moment with the solar magnetic field, we calculate…

High Energy Physics - Phenomenology · Physics 2008-11-26 E. Kh. Akhmedov , J. Pulido

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

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

Assuming the solar neutrino deficit is resolved by the resonant interaction of the neutrino magnetic moment with the solar magnetic field --in the framework of Resonant Spin Flavour Precession (RSFP) scenario-- the solar magnetic field…

High Energy Physics - Phenomenology · Physics 2016-09-06 Bhag C. Chauhan
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