Search Results - "Ichikawa, A. K"
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Abundances of Uranium and Thorium Elements in Earth Estimated by Geoneutrino Spectroscopy
Published in Geophysical research letters (28-08-2022)“…The decay of the primordial isotopes 238U, 235U, 232Th, and 40K has contributed to the terrestrial heat budget throughout the Earth's history. Hence, the…”
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Front-End Electronics for the SiPM-Readout Gaseous TPC for Neutrinoless Double-Beta Decay Search
Published in IEEE transactions on nuclear science (01-07-2020)“…We have developed a dedicated front-end electronics board for a high-pressure xenon gas time projection chamber for a neutrinoless double-beta decay search…”
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A new electron-multiplier-tube-based beam monitor for muon monitoring at the T2K experiment
Published in Progress of theoretical and experimental physics (01-10-2018)“…Abstract Muon beam monitoring is indispensable for indirectly monitoring accelerator-produced neutrino beams in real time. Though Si photodiodes and ionization…”
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Design and performance of a high-pressure xenon gas TPC as a prototype for a large-scale neutrinoless double-beta decay search
Published in Progress of theoretical and experimental physics (01-03-2020)“…Abstract A high-pressure xenon gas time projection chamber, with a unique cellular readout structure based on electroluminescence, has been developed for a…”
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5
Design concept of the magnetic horn system for the T2K neutrino beam
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (21-10-2012)“…The design concept of the magnetic horn system for the T2K neutrino oscillation experiment is described. We proposed a three-horn system with optics similar to…”
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Search for Supernova Neutrino Bursts at Super-Kamiokande
Published in The Astrophysical journal (01-11-2007)Get full text
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Indications of neutrino oscillation in a 250 km long-baseline experiment
Published in Physical review letters (31-01-2003)“…The K2K experiment observes indications of neutrino oscillation: a reduction of nu(mu) flux together with a distortion of the energy spectrum. Fifty-six beam…”
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Measurement of atmospheric neutrino flux consistent with tau neutrino appearance
Published in Physical review letters (27-10-2006)“…A search for the appearance of tau neutrinos from nu(mu) <--> nu(tau) oscillations in the atmospheric neutrinos has been performed using 1489.2 days of…”
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First measurement using a nuclear emulsion detector of the νμ charged-current cross section on iron around the 1 GeV energy region
Published in Progress of theoretical and experimental physics (01-03-2021)“…Abstract We have carried out $\nu_{\mu}$ charged-current interaction measurement on iron using an emulsion detector exposed to the T2K neutrino beam in the…”
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Search for Astrophysical Neutrino Point Sources at Super-Kamiokande
Published in The Astrophysical journal (10-10-2009)“…It has been hypothesized that large fluxes of neutrinos may be created in astrophysical 'cosmic accelerators.' The primary background for a search for…”
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Measurement of the muon beam direction and muon flux for the T2K neutrino experiment
Published in Progress of theoretical and experimental physics (11-05-2015)“…The Tokai-to-Kamioka (T2K) neutrino experiment measures neutrino oscillations by using an almost pure muon neutrino beam produced at the J-PARC accelerator…”
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Search for electron neutrino appearance in a 250 km long-baseline experiment
Published in Physical review letters (30-07-2004)“…We present a search for electron neutrino appearance from accelerator-produced muon neutrinos in the K2K long-baseline neutrino experiment. One candidate event…”
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High-Energy Neutrino Astronomy Using Upward-going Muons in Super-Kamiokande I
Published in The Astrophysical journal (20-11-2006)“…We present the results from several studies used to search for astrophysical sources of high-energy neutrinos using the Super-Kamiokande I (1996 April-2001…”
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Search for Diffuse Astrophysical Neutrino Flux Using Ultra-High-Energy Upward-going Muons in Super-Kamiokande I
Published in The Astrophysical journal (20-11-2006)“…Many astrophysical models predict a diffuse flux of high-energy neutrinos from active galactic nuclei and other extragalactic sources. At muon energies above 1…”
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Improved search for nu(mu) --> nu(e) oscillation in a long-baseline accelerator experiment
Published in Physical review letters (12-05-2006)“…We performed an improved search for nu(mu) --> nu(e) oscillation with the KEK to Kamioka (K2K) long-baseline neutrino oscillation experiment, using the full…”
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Search for the Majorana Nature of Neutrinos in the Inverted Mass Ordering Region with KamLAND-Zen
Published in Physical review letters (03-02-2023)“…The KamLAND-Zen experiment has provided stringent constraints on the neutrinoless double-beta (0νββ) decay half-life in ^{136}Xe using a xenon-loaded liquid…”
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Measurements of the charge ratio and polarization of cosmic-ray muons with the Super-Kamiokande detector
Published 04-11-2024“…Phys. Rev. D 110, 082008 (2024) We present the results of the charge ratio ($R$) and polarization ($P^{\mu}_{0}$) measurements using the decay electron events…”
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Development of a data overflow protection system for Super-Kamiokande to maximize data from nearby supernovae
Published 13-08-2024“…Neutrinos from very nearby supernovae, such as Betelgeuse, are expected to generate more than ten million events over 10\,s in Super-Kamokande (SK). At such…”
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Search for Charged Excited States of Dark Matter with KamLAND-Zen
Published 03-07-2024“…Phys. Lett. B 855 (2024) 138846 Particle dark matter could belong to a multiplet that includes an electrically charged state. WIMP dark matter ($\chi^{0}$)…”
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Second gadolinium loading to Super-Kamiokande
Published 18-06-2024“…Nuclear Inst. and Methods in Physics Research, A 1065 (2024) 169480 The first loading of gadolinium (Gd) into Super-Kamiokande in 2020 was successful, and the…”
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