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The Sudbury Neutrino Observatory (SNO) has precisely determined the total active (nu_x) 8B solar neutrino flux without assumptions about the energy dependence of the nu_e survival probability. The measurements were made with dissolved NaCl…

Nuclear Experiment · Physics 2012-08-27 SNO Collaboration

Solar neutrino oscillations with wavelengths comparable to the Earth-Sun distance provide a viable explanations of the long-standing solar neutrino deficit. They imply a time-dependent modulation of the solar neutrino flux due to the…

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

The uncertainty in the calculation of atmospheric neutrino fluxes is studied. The absolute value of atmospheric neutrino fluxes is sensitive to variation of the primary cosmic ray flux model and/or the interaction model. However, the ratios…

High Energy Physics - Phenomenology · Physics 2009-10-31 M. Honda

I consider phenomenological changes in the standard solar model with the goal of testing recent claims that the solar neutrino puzzle requires new particle physics. The assumption of a steady-state sun producing the correct luminosity and…

Nuclear Theory · Physics 2008-02-03 W. C. Haxton

The status of the solar neutrino problem is reviewed. Attempts to explain the observed deficit and spectral distortion, both by astrophysical and particle physics methods, are described. It is argued that the comparison of all experiments…

High Energy Physics - Phenomenology · Physics 2011-06-02 Paul Langacker

This article summarises the status of the solar neutrino oscillation phenomenology at the end of 2002 in the light of the SNO and KamLAND results. We first present the allowed areas obtained from global solar analysis and demonstrate the…

High Energy Physics - Phenomenology · Physics 2008-11-26 Srubabati Goswami

If the solar neutrino flux were constant, as is widely assumed, the histogram of flux measurements would be unimodal. On the other hand, sinusoidal or square-wave modulation (either periodic or stochastic) may lead to a bimodal histogram.…

Astrophysics · Physics 2009-10-31 Peter A. Sturrock , Jeffrey D. Scargle

We report the complete GNO solar neutrino results for the measuring periods GNO III, GNO II, and GNO I. The result for GNO III (last 15 solar runs) is [54.3 + 9.9 - 9.3 (stat.)+- 2.3 (syst.)] SNU (1 sigma) or [54.3 + 10.2 - 9.6 (incl.…

MSW solutions of the solar neutrino problem predict a seasonal dependence of the zenith angle distribution of the event rates, due to the non-zero latitude at the Super-Kamiokande site. We calculate this seasonal dependence and compare it…

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

We have updated the analysis for the solution to the solar neutrino problem by the long-wavelength neutrino oscillations induced by a tiny breakdown of the weak equivalence principle of general relativity, and obtained a very good fit to…

High Energy Physics - Phenomenology · Physics 2009-10-31 A. M. Gago , H. Nunokawa , R. Zukanovich Funchal

Solar neutrino oscillations are supported by KamLAND's antineutrino measurements, but certain solar neutrino data - the observed shape of the ${}^8$B flux and the difference between day and night counting rates measured in Super-Kamiokande…

High Energy Physics - Phenomenology · Physics 2018-01-01 Francesco Vissani

We consider the implications of solar matter density random noise upon resonant neutrino conversion. The evolution equation describing MSW-like conversion is derived in the framework of the Schr\"odinger approach. We study quantitatively…

High Energy Physics - Phenomenology · Physics 2009-09-17 H. Nunokawa , A. Rossi , V. B. Semikoz , J. W. F. Valle

We present a modification of our previous family replicated gauge group model, which now generates the Large Mixing Angle MSW solution rather than the experimentally disfavoured Small Mixing Angle MSW solution to the solar neutrino…

High Energy Physics - Phenomenology · Physics 2016-09-06 C. D. Froggatt , H. B. Nielsen , Y. Takanishi

The three neutrino Zee model and its extension including three active and one sterile species are studied in the light of new neutrino oscillation data. We obtain analytical relations for the mixing angle in solar oscillations in terms of…

High Energy Physics - Phenomenology · Physics 2009-11-07 Probir Roy , Sudhir K. Vempati

We have studied the large mixing angle MSW solution for the solar neutrinos in the non-abelian flavor symmetry. We predict the MNS mixing matrix taking account of the symmetry breakings.

High Energy Physics - Phenomenology · Physics 2007-05-23 Morimitsu Tanimoto

We consider the effect on matter-enhanced neutrino flavor transformation of a randomly fluctuating, delta-correlated matter density. The fluctuations will produce a distribution of neutrino survival probabilities. We find the mean and…

Astrophysics · Physics 2008-11-26 A. B. Balantekin , J. M. Fetter , F. N. Loreti

In this paper, we explore the existence of various non-singular compact stellar solutions influenced by the Maxwell field within the matter-geometry coupling based modified gravity. We start this analysis by considering a static spherically…

General Relativity and Quantum Cosmology · Physics 2024-09-04 Tayyab Naseer , Jackson Levi Said

By combining the results of SNO and Super-Kamiokande one can derive - in the absence of sterile neutrinos - the total neutrino flux produced from $^8$B decay in the Sun. We use this information to check the accuracy of several input…

Astrophysics · Physics 2009-11-07 G. Fiorentini , B. Ricci

Solar activity in all its varied manifestations is driven by the magnetic field. Particularly important for many purposes are two global quantities, the Sun's total and open magnetic flux, which can be computed from sunspot number records…

Solar and Stellar Astrophysics · Physics 2021-06-09 N. A. Krivova , S. K. Solanki , B. Hofer , C. -J. Wu , I. G. Usoskin , R. Cameron

Recent solar neutrino results together with the assumption of a stationary Sun imply severe constraints on the individual components of the total neutrino flux : $\Phi_{Be} \leq 0.7 \cdot 10^{9} cm^{-2} s^{-1}, \Phi_{CNO} \leq 0.6 \cdot…

Astrophysics · Physics 2009-09-25 V. Castellani , S. Degl'Innocenti , G. Fiorentini , B. Ricci
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