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The first generation of solar neutrino experiments narrowed the allowed flavor mixing and mass parameter solutions (for nu_e <-> nu_x) to a few isolated regions of sin^2*2*theta - delta M^2 parameter space. Recently, the Small Mixing Angle…

High Energy Physics - Experiment · Physics 2007-05-23 S. A. Dazeley

We analyze with the Bayesian method the solar and KamLAND neutrino data in terms of neutrino oscillations. We show that Bayesian credible regions with a flat prior in the tan^2(theta12)--(Delta m^2)_21 plane strongly support the LMA…

High Energy Physics - Phenomenology · Physics 2009-11-11 B. L. Chen , H. L. Ge , C. Giunti , Q. Y. Liu

We analyze the 1258-day Super-Kamiokande day and night solar neutrino energy spectra with various $\chi^2$ definitions. The best-fit lies in the LMA region at $(\Delta m^2, tan^2 \theta)=(5.01\times 10^{-5} eV^2, 0.60)$, independently of…

High Energy Physics - Phenomenology · Physics 2010-05-28 V. Barger , D. Marfatia , K. Whisnant , B. P. Wood

First we investigate the possibility of detecting solar antineutrinos with the KamLAND experiment. Then we analyze the first Borexino data release to constrain the neutrino magnetic moment. Finally we investigate the resonant spin flavour…

High Energy Physics - Phenomenology · Physics 2009-07-06 M. Picariello , B. C. Chauhan , C. R. Das , Fernandez-Melgarejo , D. Montanino , J. Pulido , E. Torrente-Lujan

One long-standing tension in the determination of neutrino parameters is the mismatched value of the solar mass square difference, $\Delta m_{21}^2$, measured by different experiments: the reactor antineutrino experiment KamLAND finds a…

High Energy Physics - Phenomenology · Physics 2024-05-31 Rasmi Hajjar , Sergio Palomares-Ruiz , Olga Mena

We update our earlier study in [1], which was inspired by the 2002 SNO data, on the implications of the results of the solar neutrino experiments for the predictions of the effective Majorana mass in neutrinoless double beta-decay, |<m>|.…

High Energy Physics - Phenomenology · Physics 2008-11-26 S. Pascoli , S. T. Petcov

We reanalyze the non-standard interaction (NSI) solutions to the solar neutrino problem in the light of the latest solar, atmospheric and reactor neutrino data. We show that such solutions, although preferred by the solar data and…

High Energy Physics - Phenomenology · Physics 2009-09-17 M. M. Guzzo , P. C. de Holanda , M. Maltoni , H. Nunokawa , M. A. Tortola , J. W. F. Valle

A global statistical analysis of the pre-SNO solar neutrino data including the rates and recoil electron spectrum in SuperKamiokande is made assuming the solar neutrino deficit to be resolved by the interaction of the neutrino magnetic…

High Energy Physics - Phenomenology · Physics 2007-05-23 Joao Pulido

In this paper we use solar neutrino data to derive stringent bounds on Majorana neutrino transition moments (TMs). Should such be present, they would contribute to the neutrino--electron scattering cross section and hence alter the signal…

High Energy Physics - Phenomenology · Physics 2008-11-26 W. Grimus , M. Maltoni , T. Schwetz , M. A. Tortola , J. W. F. Valle

We explore the possibility of an energy independent suppression of the solar neutrino flux in the context of the recent SuperKamiokande data. From a global analysis of the rate and spectrum data, this scenario is allowed at only 14%…

High Energy Physics - Phenomenology · Physics 2009-12-31 Sandhya Choubey , Srubabati Goswami , Nayantara Gupta , D. P. Roy

We study the implication of the first neutral current (NC) data from SNO. We perform model independent and model dependent analyses of the solar neutrino data. The inclusion of the first SNO NC data in the model independent analysis…

High Energy Physics - Phenomenology · Physics 2007-05-23 Sandhya Choubey , Abhijit Bandyopadhyay , Srubabati Goswami , D. P. Roy

We perform model independent and model dependent analyses of solar neutrino data including the neutral current event rate from SNO. The inclusion of the first SNO NC data in the model independent analysis determines the allowed ranges of…

High Energy Physics - Phenomenology · Physics 2014-11-17 Abhijit Bandyopadhyay , Sandhya Choubey , Srubabati Goswami , D. P. Roy

The physics implications of the just published salt phase data from the SNO experiment are examined. The effect of these data on the allowed ranges of the solar neutrino oscillation parameters, $\Delta_m^2_{21}$ and $\sin^2\theta_{12}$, are…

High Energy Physics - Phenomenology · Physics 2010-04-05 Abhijit Bandyopadhyay , Sandhya Choubey , Srubabati Goswami , S. T. Petcov , D. P. Roy

We perform a global analysis in the framework of two active neutrino oscillations of all solar neutrino data, including the recent SNO day and night spectra (comprised of the charged current (CC), elastic scattering (ES) and neutral current…

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

A joint analysis of solar neutrino data together with the new KamLAND data is presented in the RSFP framework. It is investigated that how the new KamLAND data effects the allowed regions at different $\mu B$ values. A limit on $\mu B$…

High Energy Physics - Phenomenology · Physics 2008-10-07 D. Yilmaz

Solar neutrino experiments have yet to see directly the transition region between matter-enhanced and vacuum oscillations. The transition region is particularly sensitive to models of non-standard neutrino interactions and propagation. We…

High Energy Physics - Phenomenology · Physics 2015-06-16 R. Bonventre , A. LaTorre , J. R. Klein , G. D. Orebi Gann , S. Seibert , O. Wasalski

We give an alternative description of the new data produced in the KamLAND experiment, assuming the existence of a natural nuclear reactor on the boundary of the liquid and solid phases of the Earth's core. Analyzing the uncertainty of…

Assuming neutrinos are Majorana particles having non-zero transition magnetic moments, a global analysis of solar neutrino data, together with the new KamLAND data, is presented in the resonant spin flavor precession (RSFP) framework. The…

High Energy Physics - Phenomenology · Physics 2014-11-18 D Yilmaz , A U Yilmazer

The possibility of flavor transitions into sterile neutrinos (accompanying the dominant LMA transitions) in the solar boron neutrino flux has been examined in a scenario proposed by Hollanda and Smirnov to overcome some generic problems of…

High Energy Physics - Phenomenology · Physics 2009-11-11 S. Dev , Sanjeev Kumar

It is of great interest whether the recent KamLAND bound on the flux of electron antineutrinos from the Sun constrains the electromagnetic properties of the neutrino. We examine the efficiency of the electron antineutrino production in the…

High Energy Physics - Phenomenology · Physics 2007-05-23 Alexander Friedland
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