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An improved standard solar model has been used to calculate the fluxes of standard solar neutrinos. It includes premain sequence evolution, element diffusion, partial ionization effects, and all the possible nuclear reactions between the…

Astrophysics · Physics 2009-10-28 Arnon Dar , Giora Shaviv

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

Motivated by recent experimental claims for the existence of a 17 keV neutrino and by the solar neutrino problem, we construct a class of models which contain in their low-energy spectrum a single light sterile neutrino and one or more…

High Energy Physics - Phenomenology · Physics 2009-10-22 C. P. Burgess , J. Cline , Markus Luty

There are four important facts about solar neutrinos. They are listed in order of importance in this abstract and discussed more in the text of the talk. First, solar neutrinos have been detected in four experiments with approximately the…

Astrophysics · Physics 2008-02-03 John N. Bahcall

The current Super-Kamiokande data on the D-N asymmetry between the the day event rate and the {\it Night} and {\it Core} event rates, produced by solar neutrinos which respectively cross the Earth along any trajectory and cross the Earth…

High Energy Physics - Phenomenology · Physics 2007-05-23 M. Maris , S. T. Petcov

The results of a solar model independent analysis of the existing solar neutrino data under the assumption of MSW transitions in matter or vacuum oscillations (in the cases of $\nu_{e}$--$\nu_{\mu}(\nu_{\tau})$ and…

High Energy Physics - Phenomenology · Physics 2009-10-28 S. M. Bilenky , C. Giunti

We discuss here what model independent information about properties of neutrinos and of the sun can be obtained from future solar neutrino experiments (SNO, Super-Kamiokande). It is shown that in the general case of transitions of solar…

High Energy Physics - Phenomenology · Physics 2011-05-23 S. M. Bilenky , C. Giunti

In this paper, we examine a new updated solar model taking advantage of recent reexamination of the nuclear reactions rates and of the microscopic diffusion of helium and heavy elements. Our best model fits the helioseismic data reasonably…

Astrophysics · Physics 2008-11-26 A. S. Brun , S. Turck-Chieze , P. Morel

The solar neutrino problem has persisted for almost three decades. Recent results from Kamiokande, SAGE, and GALLEX indicate a pattern of neutrino fluxes that is very difficult to reconcile with plausible variations in standard solar…

High Energy Physics - Phenomenology · Physics 2009-09-25 W. Haxton

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

Recent evidence for oscillations of atmospheric neutrinos at Super-Kamiokande suggest, in the simplest see-saw interpretation, neutrino masses such that `just so' vacuum oscillations can explain the solar neutrino deficit. Super-K solar…

High Energy Physics - Phenomenology · Physics 2009-10-31 Sheldon L. Glashow , Peter J. Kernan , Lawrence M. Krauss

Constraints on the core temperature of the Sun and on neutrino-oscillation parameters are obtained by comparing the combined Homestake, Kamiokande, SAGE and GALLEX solar neutrino data with Standard Solar Models (SSM) and with non-standard…

High Energy Physics - Phenomenology · Physics 2009-04-13 S. A. Bludman , N. Hata , D. C. Kennedy , P. G. Langacker

Possible outcomes of neutrino events at both Super-Kamiokande and SNO for a type-II supernova are analyzed considering the uncertainties in SN neutrino spectra (temperature) at emission, which may complicate the interpretation of the…

High Energy Physics - Phenomenology · Physics 2009-10-31 Shao-Hsuan Chiu , T. K. Kuo

We describe the current status of solar neutrino measurements and of the theory -- both neutrino physics and solar astrophysics -- employed in interpreting measurements. Important recent developments include Super-Kamiokande's determination…

Solar and Stellar Astrophysics · Physics 2015-06-11 W. C. Haxton , R. G. Hamish Robertson , Aldo M. Serenelli

The long-standing deficit of measured versus predicted solar neutrino fluxes is re-examined in light of possible astrophysical solutions. In the last decade, solar neutrino flux and helioseismic measurements have greatly strengthened the…

Astrophysics · Physics 2017-08-23 Dallas C. Kennedy

We perform an updated model-independent analysis using all the latest solar neutrino data, including the one coming from remarkably high statistics SuperKamiokande experiment. We confirm that the astrophysical solutions to the solar…

High Energy Physics - Phenomenology · Physics 2007-05-23 Hisakazu Minakata , Hiroshi Nunokawa

Using the data from SNO NCD phase, SuperK, Borexino and KamLAND Solar phase, we derive in a model independent way, bounds on the possible components in the solar neutrino flux. We update the limits on the antineutrino ($\bar\nu_x$) flux and…

High Energy Physics - Phenomenology · Physics 2011-02-25 Lal Singh , Bhag C. Chauhan , Ravi Dutt , K. K. Sharma , S. Dev

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

Solar neutrino experiments are highly sensitive to sources of $\nu\to\overline{\nu}$ conversions in the $^8$B neutrino flux. In this work we adapt these searches to non-minimal sterile neutrino models recently proposed to explain the LSND,…

High Energy Physics - Phenomenology · Physics 2021-09-29 Matheus Hostert , Maxim Pospelov

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