<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi mathvariant="normal">Be</mml:mi><mml:mprescripts/><mml:none/><mml:mn>7</mml:mn></mml:mmultiscripts></mml:math>solar neutrino measurement with KamLAND

Gando, A.; Gando, Y.; Hanakago, H.; Ikeda, H.; Inoue, K.; Ishidoshiro, K.; Ishikawa, H.; Kishimoto, Y.; Koga, M.; Matsuda, R.; Matsuda, Sumio; Mitsui, Tadao; Motoki, D.; Nakajima, K.; Nakamura, Keisuke; Obata, A.; Oki, A.; Oki, Y.; Otani, M.; Shimizu, I.; Shirai, J.; Suzuki, A.; Tamae, K.; Ueshima, K.; Watanabe, Hiroko; Xu, B. D.; Yamada, S.; Yamauchi, Yoshiaki; Yoshida, H. P.; Kozlov, A.; Takemoto, Y.; Yoshida, S.; Grant, C.; Keefer, G.; McKee, D.; Piepke, A.; Banks, Thomas; Bloxham, T.; Freedman, S. J.; Fujikawa, B. K.; Han, K.; Hsu, L.; Ichimura, Kunihiro; Murayama, Hitoshi; O’Donnell, T.; Steiner, H.; Winslow, L. A.; Dwyer, D. A.; Mauger, C.; McKeown, R. D.; Zhang, C.; Berger, B. E.; Lane, C.; Maricic, J.; Miletic, T.; Learned, J. G.; Sakai, M.; Horton-Smith, G. A.; Tang, Alfred; Downum, K. E.; Tolich, K.; Efremenko, Y.; Kamyshkov, Yu.; Perevozchikov, O.; Karwowski, H. J.; Markoff, D. M.; Tornow, W.; Detwiler, J. A.; Enomoto, S.; Heeger, K. M.; Decowski, M. P.

doi:10.1103/physrevc.92.055808

Cited by 74 publications

(58 citation statements)

References 25 publications

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“…Furthermore, these neutrinos could provide an early supernova warning trigger, dramatically improving upon the current Supernova Early Warning System (SNEWS) [15] network. Sensitivity studies for pre-SN neutrinos have been conducted [11][12][13][14] for current and future neutrino experiments, primarily focusing on liquid scintillatorbased (Borexino [16], KamLAND [17,18], SNO+ [19], JUNO [20,21]) and water Cherenkov-based (SNO [22], Super-Kamiokande [23,24] and Hyper-Kamiokande [25], including gadolinium dissolution [26]) detectors. A dedicated study by the KamLAND collaboration has been also recently carried out [27].…”

Section: Introductionmentioning

confidence: 99%

Presupernova neutrinos in large dark matter direct detection experiments

2020

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The next Galactic core-collapse supernova (SN) is a highly anticipated observational target for neutrino telescopes. However, even prior to collapse, massive dying stars shine copiously in "presupernova" (pre-SN) neutrinos, which can potentially act as efficient SN warning alarms and provide novel information about the very last stages of stellar evolution. We explore the sensitivity to pre-SN neutrinos of large scale direct dark matter detection experiments, which, unlike dedicated neutrino telescopes, take full advantage of coherent neutrino-nucleus scattering. We find that argon-based detectors with target masses of O(100) tonnes (i.e. comparable in size to the proposed ARGO experiment) can detect O(10 − 100) pre-SN neutrinos coming from a source at a characteristic distance of ∼200 pc, such as Betelgeuse (α Orionis). For such a source, large scale dark matter experiments could provide a SN warning siren ∼10 hours prior to the explosion. We also comment on the complementarity of large scale direct dark matter detection experiments and neutrino telescopes in the understanding of core-collapse SN.

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Section: Introductionmentioning

confidence: 99%

Presupernova neutrinos in large dark matter direct detection experiments

2020

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“…Nevertheless, contamination with 85 Kr at the level of 883±20 µBq/kg and with daughter isotopes of 222 Rn was observed. The decay rate of 210 Pb was 58.4±1.1 µBq/kg, as inferred from the decay rates of its unstable daughters 210 Bi and 210 Po [173]. Though the resulting single event counting rate of 8.1×10 7 (kt·d) −1 was acceptable for the antineutrino programme, the solar neutrino one would be impossible without further purification.…”

Section: Radiopuritymentioning

confidence: 96%

“…An important point for the geoneutrino study in the KamLAND-Zen experiment was in 2012, when, following the Fukusima event, the Japanese nuclear power plants were switched off for checks and maintenance. The idea to use the information on the thermal power of nuclear plants in view of the geoneutrino signal extraction was discussed before these dramatic events [171]. After May 2012, when the last reactor was switched off, the reactor-to-geoneutrino signal ratio is practically the same as in the Borexino experiment.…”

Section: Kamland Experimentsmentioning

confidence: 99%

Experimental aspects of geoneutrino detection: Status and perspectives

Smirnov

2019

Progress in Particle and Nuclear Physics

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Neutrino geophysics, the study of the Earth's interior by measuring the fluxes of geologically produced neutrino at its surface, is a new interdisciplinary field of science, rapidly developing as a synergy between geology, geophysics and particle physics. Geoneutrinos, antineutrinos from longlived natural isotopes responsible for the radiogenic heat flux, provide valuable information for the chemical composition models of the Earth. The calculations of the expected geoneutrino signal are discussed, together with experimental aspects of geoneutrino detection, including the description of possible backgrounds and methods for their suppression. At present, only two detectors, Borexino and KamLAND, have reached sensitivity to the geoneutrino. The experiments accumulated a set of ∼190 geoneutrino events and continue the data acquisition. The detailed description of the experiments, their results on geoneutrino detection, and impact on geophysics are presented. The start of operation of other detectors sensitive to geoneutrinos is planned for the near future: the SNO+ detector is being filled with liquid scintillator, and the biggest ever 20 kt JUNO detector is under construction. A review of the physics potential of these experiments with respect to the geoneutrino studies, along with other proposals, is presented. New ideas and methods for geoneutrino detection are reviewed.

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“…While they will ultimately be competitive in the ∆m 2 41 ∼ O(1 − 10) eV 2 region, they have not yet produced world-leading limits. Constraints on sterile neutrinos mixing with ν e /ν e from radioactive source [57][58][59], solar [60][61][62][63][64][65][66][67][68][69][70][71] and carbonscattering [72,73] experiments can be nontrivial, but we do not consider these.…”

Section: Reactor Antineutrino Experimentsmentioning

confidence: 99%

Constraining sterile neutrino cosmology with terrestrial oscillation experiments

Berryman

2019

Phys. Rev. D

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We explore the complementarity between terrestrial neutrino oscillation experiments and astrophysical/cosmological measurements in probing the existence of sterile neutrinos. We find that upcoming accelerator neutrino experiments will not improve on constraints by the time they are operational, but that reactor experiments can already probe parameter space beyond the reach of Planck. We emphasize the tension between cosmological experiments and reactor antineutrino experiments and enumerate several possibilities for resolving this tension. † It is, by hypothesis, not possible to directly detect sterile neu-arXiv:1905.03254v1 [hep-ph]

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Be7solar neutrino measurement with KamLAND

Cited by 74 publications

References 25 publications

Presupernova neutrinos in large dark matter direct detection experiments

Presupernova neutrinos in large dark matter direct detection experiments

Experimental aspects of geoneutrino detection: Status and perspectives

Constraining sterile neutrino cosmology with terrestrial oscillation experiments

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