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Uniform random numbers, not Gaussian random numbers, should have been used with Standard Solar Models to estimate the effect on the neutrino flux of uncertainties in input data. The observed discrepancy is therefore probably quite smaller…

High Energy Physics - Phenomenology · Physics 2007-05-23 Jacques Goldberg

We describe the current status of solar modelling and focus on the problems originated with the introduction of solar abundance determinations with low CNO abundance values. We use models computed with solar abundance compilations obtained…

Solar and Stellar Astrophysics · Physics 2011-03-28 Aldo M. Serenelli

For active and sterile neutrinos, we present the globally allowed solutions for two neutrino oscillations. We include the SNO CC measurement and all other relevant solar neutrino and reactor data. Five active neutrino oscillation solutions…

High Energy Physics - Phenomenology · Physics 2010-05-28 John N. Bahcall , M. C. Gonzalez-Garcia , Carlos Pena-Garay

The static spherically symmetric solution for (R +- {\mu}^4/R) model of f(R)gravity is investigated. We obtain the metric for space-time in the solar system that reduces to the Schwarzschild metric, when {\mu} tends to zero. For the…

General Relativity and Quantum Cosmology · Physics 2015-05-18 Kh. Saaidi , A. Vaji , A. Aghamomammadi

There is no consistent solar model which can describe all experimental data on the solar neutrinos. The problem can be formulated essentially in a model independent way. The key points are the comparison of the Homestake and the Kamiokande…

High Energy Physics - Phenomenology · Physics 2009-09-25 Alexei Yu. Smirnov

We present a generalization of the resonant neutrino conversion in matter, including a random component in the matter density profile. The study is focused on the effect of such matter perturbations upon both large and small mixing angle…

High Energy Physics - Phenomenology · Physics 2007-05-23 A. Rossi

We present an exact analytic solution to the neutrino evolution equation in matter with periodic step-function density profile and discuss in detail the parametric resonance of neutrino oscillations that can occur in such a system. Solar…

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

We discuss various aspects of the solar neutrino spectrum distortion and time variations of fluxes. (i) Oscillations of neutrinos which cross the mantle and the core of the Earth can be parametrically enhanced. The parametric effect gives…

High Energy Physics - Phenomenology · Physics 2009-10-31 A. Yu. Smirnov

If neutrinos are to play a relevant cosmological role, they must be essentially degenerate. We study whether radiative corrections can or cannot be responsible for the small mass splittings, in agreement with all the available experimental…

High Energy Physics - Phenomenology · Physics 2009-10-31 J. A. Casas , J. R. Espinosa , A. Ibarra , I. Navarro

There are many theories that have resided these last fifty years within the hazy mist we have been calling the Standard Model (SM) of elementary particles. An attempt is made here to construct a coherent description of the SM today, because…

History and Philosophy of Physics · Physics 2019-11-25 James D. Wells

The status of solar neutrino experiments and their implications for both nonstandard astrophysics ({\it e.g.,} cool sun models) and nonstandard neutrino properties ({\it e.g.,} MSW conversions) are discussed. Assuming that all of the…

High Energy Physics - Phenomenology · Physics 2007-05-23 Paul Langacker

We generate new standard solar models using newly analyzed nuclear fusion cross sections and present results for helioseismic quantities and solar neutrino fluxes. We discuss the status of the solar abundance problem and investigate whether…

Solar and Stellar Astrophysics · Physics 2015-05-27 Aldo M. Serenelli , Wick C. Haxton , Carlos Pena-Garay

I summarize in four slides the 40 years of development of the standard solar model that is used to predict solar neutrino fluxes and then describe the current uncertainties in the predictions. I next dispel the misconception that the p-p…

Astrophysics · Physics 2009-11-07 John N. Bahcall

We study the simplest Standard Model estension with only one extra right-handed neutrino. In this case there are two massless $m_{1,2}$ and two massive $m_{3,4}$ neutrinos, and in principle both solar and atmospheric anomalies can be…

High Energy Physics - Phenomenology · Physics 2011-04-15 F. Del Aguila , J. Gluza , M. Zralek

The observed deficit of $\rm ^8B$ solar neutrinos may call for an improved standard model of the sun or an expanded standard model of particle physics ({\it e.g.,} with neutrino masses and mixing). In the former case, contemporary fluid…

High Energy Physics - Phenomenology · Physics 2007-05-23 A. De Rújula , S. L. Glashow

We suggest that a singlet fermion $S$ exists beyond the standard see-saw structure. It mixes with light neutrinos via interactions with the right-handed neutrino components, so that $\n_e \to S$ conversion solves the solar neutrino problem.…

High Energy Physics - Phenomenology · Physics 2009-10-28 E. J. Chun , Anjan S. Joshipura , A. Yu. Smirnov

Large mixing MSW solutions to the solar neutrino problem appear to be currently favored by the data. We discuss the possibility of discriminating them by means of present and future experiments. In particular, we show that the study of…

High Energy Physics - Phenomenology · Physics 2009-11-07 Antonio Palazzo

The Standard Solar Model (BP04) predicts a total 8B neutrino flux that is 17.2% larger than measured in the salt phase of the SNO detector (and if it were significant it will indicate oscillation to sterile neutrinos). Hence it is important…

Nuclear Experiment · Physics 2008-11-26 Moshe Gai

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

All existing measurements of the solar neutrino flux are compared with the predictions of the most recent solar model by Bahcall and Pinsonneault, modified by introducing the hypothesis of neutrino oscillations with mass differences large…

High Energy Physics - Phenomenology · Physics 2011-04-15 G. Conforto , A. Marchionni , F. Martelli , F. Vetrano