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We study the framework of $U(1)_X$ models with kinetic mixing and/or mass mixing terms. We give general and exact analytic formulas and derive limits on a variety of $U(1)_X$ models that induce new physics contributions to neutrino-electron…

High Energy Physics - Phenomenology · Physics 2018-11-02 Manfred Lindner , Farinaldo S. Queiroz , Werner Rodejohann , Xun-Jie Xu

We elucidate effects of solar density fluctuations on neutrino propagation through the Sun. Using data from the recent solar neutrino and KamLAND experiments we provide stringent limits on solar density fluctuations. It is shown that the…

High Energy Physics - Phenomenology · Physics 2009-11-10 A. B. Balantekin , H. Yuksel

The standard solar model (SSM) yield a $^8$B solar neutrino flux which is consistent within the theoretical and experimental uncertainties with that observed at Super-Kamiokande. The combined results from the Super- Kamiokande and the…

Astrophysics · Physics 2011-04-15 Arnon Dar

We have considered the effect of the reduction of the solar neutrino flux on earth due to the deflection of the charged neutrino by the magnetic field of the solar convective zone. The antisymmetry of this magnetic field about the plane of…

High Energy Physics - Phenomenology · Physics 2009-04-13 A. Yu. Ignatiev , G. C. Joshi

The computational analyses is presented of the non stationary case with mixing of the solar model when the neutrino flux $F_{13}$ from the decay of $^{13}N$ is higher than a standard solar model predicts

Solar and Stellar Astrophysics · Physics 2010-01-15 A. Kopylov , V. Petukhov

We investigate the scattering of solar neutrinos on electrons and nuclei in dark matter direct detection experiments. The rates of these processes are small in the Standard Model, but can be enhanced by several orders of magnitude if the…

High Energy Physics - Phenomenology · Physics 2012-10-10 Joachim Kopp

The recent XENON1T excess can be explained by the solar active-sterile neutrino conversion with bound electrons via light mediator. Nevertheless, the atomic effects are usually omitted in the solar neutrino explanations. We systematically…

High Energy Physics - Phenomenology · Physics 2022-06-01 Shao-Feng Ge , Pedro Pasquini , Jie Sheng

The relatively large value of neutrino mixing angle \theta_{13} set by recent measurements allows us to use solar neutrinos to set a limit on neutrino magnetic moment involving second and third families, \mu_{\mu\tau}. The existence of a…

High Energy Physics - Phenomenology · Physics 2018-05-23 Marcelo Moraes Guzzo , Pedro Cunha de Holanda , Orlando Luis Goulart Peres

The Sun is a source of high energy neutrinos (E > 10 GeV) produced by cosmic ray interactions in the solar atmosphere. We study the impact of three-flavor oscillations (in vacuum and in matter) on solar atmosphere neutrinos, and calculate…

High Energy Physics - Phenomenology · Physics 2008-11-26 G. L. Fogli , E. Lisi , A. Mirizzi , D. Montanino , P. D. Serpico

We analyze the latest published solar neutrino data assuming an arbitrary neutrino oscillation/conversion mechanism suppresses the electron neutrino flux from the Sun independent of energy. For oscillations/transitions into active (sterile)…

High Energy Physics - Phenomenology · Physics 2016-09-06 P. I. Krastev , S. T. Petcov

The $^8$B solar neutrino flux predicted by the standard solar model (SSM) is consistent within the theoretical and experimental uncertainties with that observed at Kamiokande. The Gallium and Chlorine solar neutrino experiments, however,…

Astrophysics · Physics 2007-05-23 Arnon Dar

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

The results of the Sudbury experiments have seemingly solved the solar neutrino problem. However, we must remain open to the possibility that these results may be subjected to new theoretical interpretations in the future. Should such a…

General Physics · Physics 2007-05-23 J. Zzimbe

As low-threshold dark matter detectors advance in development, they will become sensitive to recoils from solar neutrinos which opens up the possibility to explore neutrino properties. We predict the enhancement of the event rate of solar…

High Energy Physics - Phenomenology · Physics 2022-07-20 Thomas Schwemberger , Tien-Tien Yu

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

Constraints on the core temperature (T_c) of the Sun and on neutrino- oscillation parameters are obtained from the existing solar neutrino data, including the recent GALLEX and Kamiokande III results. (1) A purely astrophysical solution to…

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

A brief sketch is made of the present observational status of neutrino physics, with emphasis on the hints that follow from solar and atmospheric neutrino observations, as well as cosmological data on the amplitude of primordial density…

High Energy Physics - Phenomenology · Physics 2009-09-17 J. W. F. Valle

With latest experimental data the solar neutrino problem enters new phase when crucial aspects of the problem can be formulated in an essentially (solar) model independent way. Original neutrino fluxes can be considered as free parameters…

High Energy Physics - Phenomenology · Physics 2009-10-28 A. Yu. Smirnov

Present neutrino data are consistent with neutrino masses arising from a common seed at some ``neutrino unification'' scale $M_X$. Such a simple theoretical ansatz naturally leads to quasi-degenerate neutrinos that could lie in the…

High Energy Physics - Phenomenology · Physics 2008-11-26 P. H. Chankowski , A. Ioannisian , S. Pokorski , J. W. F Valle

Recent solar neutrino experiments have shown that both $\phi(^8$B) and the neutrino flux ratio $\phi(^7$Be)/$\phi(^8$B) are substantially below their standard solar model values, leading some to discount the possibility of an astrophysical…

Nuclear Theory · Physics 2009-10-30 Andrew Cumming , W. C. Haxton