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We investigate the potential of 3 kiloTon-years(kTy) of KamLAND data to further constrain the $\Delta m^2$ and $\tan^2\theta$ values compared to those presently allowed by existing KamLAND and global solar data. We study the extent,…

High Energy Physics - Phenomenology · Physics 2008-11-26 Abhijit Bandyopadhyay , Sandhya Choubey , Raj Gandhi , Srubabati Goswami , D. P. Roy

We have performed analysis of the solar neutrino data including results from the SNO salt phase as well as the combined analysis of the solar and the KamLAND results. The best fit values of neutrino parameters are Delta m^2 = 7.1e-5 eV^2,…

High Energy Physics - Phenomenology · Physics 2011-05-23 P. C. de Holanda , A. Yu. Smirnov

We investigate the possibility of detecting solar electron antineutrinos with the KamLAND experiment. These electron antineutrinos are predicted by spin-flavor oscillations at a significant rate even if this mechanism is not the leading…

High Energy Physics - Phenomenology · Physics 2014-11-17 E. Torrente-Lujan

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

We explore the impact of the data from the KamLAND experiment in constraining neutrino mass and mixing angles involved in solar neutrino oscillations. In particular we discuss the precision with which we can determine the the mass squared…

High Energy Physics - Phenomenology · Physics 2009-11-10 Srubabati Goswami , Abhijit Bandyopadhyay , Sandhya Choubey

We do a re-analysis to asses the impact of the results of the Borexino experiment and the recent 2.8 KTy KamLAND data on the solar neutrino oscillation parameters. The current Borexino results are found to have no impact on the allowed…

High Energy Physics - Phenomenology · Physics 2008-05-01 Abhijit Bandyopadhyay , Sandhya Choubey , Srubabati Goswami , S. T. Petcov , D. P. Roy

The recent measurement of Delta_{sol} by the KamLAND experiment with very small errors, makes definitive predictions for the energy dependence of the solar neutrino survival probability P_{ee}. We fix Delta_{sol} to be the KamLAND best fit…

High Energy Physics - Phenomenology · Physics 2011-03-31 Bipin Singh Koranga , Mohan Narayan , S. Uma Sankar

A global analysis of the solar neutrino data from all solar neutrino experiments combined with the KamLAND data is presented assuming that the solar neutrino deficit is due to the matter-enhanced spin-flavor precession effect. The allowed…

High Energy Physics - Phenomenology · Physics 2007-05-23 D. Yilmaz , A. U. Yilmazer

We study what will be learnt about the solar neutrino puzzle and solar neutrino oscillations once the data from the KamLAND reactor neutrino experiment (soon to become available) are combined with those from the current solar neutrino…

High Energy Physics - Phenomenology · Physics 2009-11-07 André de Gouvêa , C. Peña-Garay

We analyze the expected signals of two future neutrino experiments, kamLAND and BOREXINO. We show that with just these experiments, we will hopefully be able to determine which of the existing solutions to the solar neutrino problem is the…

High Energy Physics - Phenomenology · Physics 2007-05-23 P. Aliani , V. Antonelli , R. Ferrari , M. Picariello , E. Torrente-Lujan

Open questions remain after the confirmation of LMA as the dominant solution to the solar neutrino deficit. These are the apparent time modulation of the solar neutrino event rates in the Homestake, Gallium and SuperKamiokande experiments,…

High Energy Physics - Phenomenology · Physics 2010-02-03 Bhag C. Chauhan , Joao Pulido

We use the recent KamLAND observations to predict the solar antineutrino spectrum at some confidence limits. We find that a scaling of the antineutrino probability with respect to the magnetic field profile --in the sense that the same…

High Energy Physics - Phenomenology · Physics 2014-11-17 Bhag C. Chauhan , Joao Pulido , E. Torrente-Lujan

In this work the possibility of detecting solar electron antineutrinos produced by a solar core magnetic field from the KamLAND recent observations is investigated. We find a scaling of the antineutrino probability with respect to the…

High Energy Physics - Phenomenology · Physics 2009-11-10 Bhag C. Chauhan , Joao Pulido , E. Torrente-Lujan

In a previous paper [1], we presented a three-flavour oscillation analysis of the solar neutrino measurements and of the first data from the KamLAND experiment, in terms of the relevant mass-mixing parameters (delta m^2, theta_12,…

High Energy Physics - Phenomenology · Physics 2009-10-07 G. L. Fogli , E. Lisi , A. Marrone , D. Montanino , A. Palazzo , A. M. Rotunno

We present new constraints on the neutrino oscillation parameters $/textyen Delta m^{2}_{21}$, $/textyen theta_{12}$, and $/textyen theta_{13}$ from a three-flavor analysis of solar and KamLAND data. The KamLAND data set includes data…

High Energy Physics - Experiment · Physics 2012-08-27 The KamLAND Collaboration

Within the framework of an SO(10) GUT model that can accommodate both the LMA and LOW solar neutrino mixing solutions by appropriate choice of the right-handed Majorana matrix elements, we present explicit predictions for the neutrino…

High Energy Physics - Phenomenology · Physics 2009-11-07 Carl H. Albright , S. Geer

We consider the implications of the recent results of SAGE and GALLEX experiments for the solution of the solar neutrino problem in the framework of the resonant neutrino spin-flavor precession scenario. It is shown that this scenario is…

High Energy Physics - Phenomenology · Physics 2008-11-26 E. Kh. Akhmedov , A. Lanza , S. T. Petcov

We generalize the pull approach to define the $\chi^2$ function to the analysis of the data with correlated statistical errors. We apply this method to the analysis of the Sudbury Neutrino Collaboration data obtained in the salt-phase. In…

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

While KamLAND apparently rules out Resonant-Spin-Flavor-Precession (RSFP) as an explanation of the solar neutrino deficit, the solar neutrino fluxes in the Cl and Ga experiments vary with solar rotation rates. Added to this evidence,…

High Energy Physics - Phenomenology · Physics 2016-09-06 D. O. Caldwell , P. A. Sturrock

Recently, the JUNO experiment published its measurement of the solar neutrino oscillation parameters $\Delta m^2_{21}$ and $\sin^2\theta_{12}$ based on 59 days of data, with central values differing by $0.2\sigma$ from those released by the…

High Energy Physics - Experiment · Physics 2026-05-19 Guihong Huang