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Related papers: Obtaining the large angle MSW solution to the sola…

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We construct a realistic model based on SUSY SO(10) with U(2) flavor symmetry. A set of symmetric mass textures give rise to very good predictions; 15 masses and 6 mixing angles are predicted by 11 parameters. Both the vacuum oscillation…

High Energy Physics - Phenomenology · Physics 2007-05-23 Mu-Chun Chen , K. T. Mahanthappa

We discuss the status of the solutions of the solar neutrino problem in terms of oscillations of $\nu_e$ into active or sterile neutrinos. We present the results of a global fit to the full data set corresponding to the latest data…

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

We show that in see-saw models with bimaximal lepton mixing at the GUT scale and with zero CP phases, the solar mixing angle theta_{12} generically evolves towards sizably smaller values due to Renormalization Group effects, whereas the…

High Energy Physics - Phenomenology · Physics 2009-11-07 Stefan Antusch , Joern Kersten , Manfred Lindner , Michael Ratz

We discuss an extended $SU(2)\times U(1)$ model which naturally leads to mass scales and mixing angles relevant for understanding both the solar and atmospheric neutrino anomalies. No right-handed neutrinos are introduced in the model.The…

High Energy Physics - Phenomenology · Physics 2009-10-31 Anjan S. Joshipura , Saurabh D. Rindani

We perform a global analysis of the latest solar neutrino data including the SNO result on the CC-event rate. This result further favors the LMA solution of the solar neutrino problem. The best fit values of parameters we find are: \Delta…

High Energy Physics - Phenomenology · Physics 2009-11-07 P. I. Krastev , A. Yu. Smirnov

This is a review article about neutrino mass models, particularly see-saw models involving three active neutrinos which are capable of describing both the atmospheric neutrino oscillation data, and the large mixing angle MSW solar solution,…

High Energy Physics - Phenomenology · Physics 2009-11-10 S. F. King

Recent SNO results give strong evidence that the solar neutrinos undergo the flavor conversion. Main issue now is the identification of the mechanism of conversion. The LMA MSW solution with $\Delta m^2 = (5 - 7) \cdot 10^{-5}$ eV$^2$,…

High Energy Physics - Phenomenology · Physics 2011-01-31 A. Yu. Smirnov

Large Mixing Angle (LMA) neutrino oscillation is the main solution for the long-standing Solar Neutrino Problem (SNP). Whether there is any subdominant effect accompanying the dominant LMA solution can not be ruled out at the moment, but…

High Energy Physics - Phenomenology · Physics 2009-11-11 Bhag C. Chauhan

The robustness of the large mixing angle (LMA) oscillation (OSC) interpretation of the solar neutrino data is considered in a more general framework where non-standard neutrino interactions (NSI) are present. Such interactions may be…

High Energy Physics - Phenomenology · Physics 2009-11-10 O. G. Miranda , M. A. Tortola , J. W. F. Valle

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

The simplest unified extension of the MSSM with bi-linear R--Parity violation naturally predicts a hierarchical neutrino mass spectrum, in which one neutrino acquires mass by mixing with neutralinos, while the other two get mass…

High Energy Physics - Phenomenology · Physics 2014-11-17 M. Hirsch , M. A. Diaz , W. Porod , J. C. Romao , J. W. F. Valle

We analyze the existing solar neutrino experiment data and show the allowed regions. The result from SNO's salt phase itself restricts quite a lot the allowed region's area. Reactor neutrinos play an important role in determining…

High Energy Physics - Phenomenology · Physics 2014-11-18 Q. Y. Liu , B. L. Chen , J. Zhou , M. J. Luo , S. C. Jing

We find a grand unified SO(10) model which accommodates the bi-maximal neutrino mixing for vacuum-oscillation solutions to the atmospheric and the solar neutrino problems. This model maintains the original SO(10) mass relation between…

High Energy Physics - Phenomenology · Physics 2009-09-29 Yasunori Nomura , T. Yanagida

Assuming neutrino oscillations, global analyses of solar data find that the LOW solution is significantly disfavoured, leaving LMA as the best solution. But the preference for LMA rests on three weak hints: the spectrum of earth matter…

High Energy Physics - Phenomenology · Physics 2009-10-09 Alessandro Strumia , Carla Cattadori , Nicola Ferrari , 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 perform a comparative study of two methods of determining the survival probabilities of low, intermediate, and high energy solar neutrinos that emphasizes the general agreement between the Large Mixing Angle (LMA) solution and extant…

High Energy Physics - Phenomenology · Physics 2009-09-15 V. Barger , D. Marfatia , K. Whisnant

We give an analytical calculation of solar neutrino masses and mixing at one-loop order within bilinear R-parity breaking supersymmetry, and compare our results to the exact numerical calculation. Our method is based on a systematic…

High Energy Physics - Phenomenology · Physics 2014-11-17 M. A. Diaz , M. Hirsch , W. Porod , J. C. Romao , J. W. F. Valle

We have investigated phenomenological implications on the neutrino flavor mixings in the $S_{3L}\times S_{3R}$ symmetric mass matrices including symmetry breaking terms. We have shown how to get the large mixing angle MSW solution, $\sin^2…

High Energy Physics - Phenomenology · Physics 2009-10-31 Morimitsu Tanimoto

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 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