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Related papers: Recent Results from KamLAND

200 papers

KamLAND has been used to measure the flux of $\bar{\nu}_e$'s from distant nuclear reactors. In an exposure of 162 ton$\cdot$yr (145.1 days) the ratio of the number of observed inverse $\beta$-decay events to the expected number of events…

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

We consider searches for dark matter annihilation to monoenergetic neutrinos in the core of the Sun. We find that liquid scintillation neutrino detectors have enhanced sensitivity to this class of dark matter models, due to the energy and…

High Energy Physics - Phenomenology · Physics 2015-07-14 Jason Kumar , Pearl Sandick

The main goal of the KamLAND reactor electron anti-neutrino experiment is a search for electron anti-neutrino oscillation using inverse-beta decay reaction in 1,000 ton of ultra-pure liquid scintillator. The data-set is 1490.8 days from…

High Energy Physics - Experiment · Physics 2019-08-13 Koichi Ichimura

The Kamioka Liquid scintillator Anti-Neutrino Detector (KamLAND) is sensitive to the neutrino event spectrum from (mainly Japanese) nuclear reactors in both the energy domain and the time domain. While the energy spectrum of KamLAND events…

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

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

In the late stages of nuclear burning for massive stars ($M>8~M_{\sun}$), the production of neutrino-antineutrino pairs through various processes becomes the dominant stellar cooling mechanism. As the star evolves, the energy of these…

We present the results of a search for extraterrestrial electron antineutrinos ($\bar{\nu}_{e}$'s) in the energy range $8.3 MeV < E_{\bar{\nu}_{e}} < 31.8 MeV$ using the KamLAND detector. In an exposure of 4.53 kton-year, we identify 25…

High Energy Astrophysical Phenomena · Physics 2015-03-19 The KamLAND Collaboration

We consider the impact of the recent KamLAND data on neutrino oscillations, the first terrestrial neutrino experiment that can probe the solar neutrino anomaly. By combining the first 145.1 days of KamLAND data with the full sample of…

High Energy Physics - Phenomenology · Physics 2009-09-17 M. Maltoni , T. Schwetz , J. W. F. Valle

We use the recently reported KamLAND measurements on oscillations of reactor anti-neutrinos, together with the data of previously reported solar neutrino experiments, to show that: (1) the total 8B neutrino flux emitted by the Sun is…

High Energy Physics - Phenomenology · Physics 2010-02-03 John N. Bahcall , M. C. Gonzalez-Garcia , Carlos Pena-Garay

An updated analysis of all available neutrino oscillation evidence in Reactor (Kamland, first 145 days of data) and Solar experiments (SK day and night spectra, global rates from Homestake, SAGE and GALLEX) including the $SNO CC$ and $NC$…

High Energy Physics - Phenomenology · Physics 2016-09-06 P. Aliani , V. Antonelli , M. Picariello , E. Torrente-Lujan

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

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 the context of three-neutrino oscillations, we study the possibility of using antineutrinos from nuclear reactors to explore the 10^{-4} {\rm eV^2} < \ms \ltap 8\times 10^{-4} {\rm eV^2} region of the LMA MSW solution of the solar…

High Energy Physics - Phenomenology · Physics 2009-11-07 S. T. Petcov , M. Piai

Super-Kamiokande-IV data taking began in September of 2008, and with upgraded electronics and improvements to water system dynamics, calibration and analysis techniques, a clear solar neutrino signal could be extracted at recoil electron…

Solar and Stellar Astrophysics · Physics 2019-08-14 Hiroyuki Sekiya

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

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

A global two-neutrino oscillation fit combining Super-Kamiokande solar neutrino data with the solar neutrino rates measured by Homestake, Gallex/GNO, SAGE and SNO prefers a single allowed area, the Large Mixing Angle solution, at about 95%…

High Energy Physics - Experiment · Physics 2017-08-23 M. B. Smy

The time variation of the elastic scattering rate of solar neutrinos with electrons in Super-Kamiokande-I was fit to the variations expected from active two-neutrino oscillations. The best fit in the Large Mixing Angle solution has a mixing…

High Energy Physics - Experiment · Physics 2008-11-26 Kamiokande Collaboration

We determine the neutrino spectra arising from low-mass (4-10 GeV) dark matter annihilating in the sun. We also determine the low-mass dark matter capture rates (element by element in the sun), assuming dark matter interacts either through…

High Energy Physics - Phenomenology · Physics 2015-07-16 Jason Kumar , John G. Learned , Katherine Richardson , Stefanie Smith