ConferenceProceedings of Science · September 27, 2024
This contribution reports the results of the searches for high-energy astrophysical neutrino point sources in the energy range above GeV using Super-Kamiokande data. The searches include time-integrated and time-dependent full sky searches for both νμ ...
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ConferenceProceedings of Science · September 27, 2024
Super-Kamiokande (SK) experiment started the "SK-Gd experiment" by dissolving gadolinium (Gd) sulfate octa-hydrate in ultra-pure water from the tank in July 2020. The neutron tagging efficiency has been improved compared to the pure-water phase by detectin ...
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ConferenceProceedings of Science · September 27, 2024
Neutrinos and muons from cosmic-ray interactions in the atmosphere originate from mesons, such as pions and kaons, in air-showers. An accuracy of the absolute atmospheric neutrino flux and its flavor ratio are limited due to the uncertainty of meson produc ...
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ConferenceProceedings of Science · September 27, 2024
In 2020, a new phase of Super-Kamiokande experiment, SK-Gd, was started by loading gadolinium into the pure water. This led to a high neutron detection efficiency, which allows us to distinguish different neutrino reactions, enhance signals and remove back ...
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ConferenceProceedings of Science · September 27, 2024
The atmospheric neutrino-oxygen neutral-current quasielasatic (NCQE) reactions are one of the main background in the search for supernova relic neutrinos. Here, we report the first measurement of the atmospheric neutrino-oxygen NCQE cross section in the Su ...
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ConferenceProceedings of Science · September 27, 2024
Cosmic-ray muons are generated from the decay of mesons which are secondary particles produced via hadronic interaction between primary cosmic-ray particles and atmospheric nuclei at the upper the atmosphere. The mesons such pions and kaons mostly decay in ...
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ConferenceProceedings of Science · September 27, 2024
Super-Kamiokande is a large water Cherenkov detector located approximately 1,000 m underground in Kamioka, Japan. The detector is a cylindrical tank 39.3 m in diameter and 41.4 m high, filled with about 50 kton of gadolinium loaded water. We measured ...
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ConferenceProceedings of Science · September 27, 2024
Since 2020, Super-Kamiokande (SK) detector has been updated by loading gadolinium (Gd) as a new experimental phase, ‘SK-Gd.’ In the SK-Gd experiment, we can search low-energy electron antineutrinos via inverse-beta decay with efficient neutron identificati ...
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ConferenceProceedings of Science · September 27, 2024
Despite efforts from numerous experiments to grasp the nature of dark matter, no convincing dark matter signal has been observed so far and the very properties of this invisible matter remain unknown. Nevertheless, strong constraints on these properties ar ...
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ConferenceProceedings of Science · March 18, 2022
Super-Kamiokande (SK) is a 50-kt water Cherenkov detector, instrumented with ∼ 13k photo-multipliers and running since 1996. It is sensitive to neutrinos with energies ranging from 4.5 MeV to several TeV. A new framework has been developed for the follow-u ...
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ConferenceProceedings of Science · March 18, 2022
The radioactivity background are among the most dangerous background for low energy neutrino analysis in Super-Kamiokande (SK), like the solar neutrino analysis. Among them, the main contribution is coming from 222Rn, which is spread in the dete ...
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ConferenceProceedings of Science · March 18, 2022
We present the results of a search for the Diffuse Supernova Neutrino Background (DSNB) at Super-Kamiokande (SK) that incorporates 22.5 × 2970 kton.days of data from its fourth data-taking phase. Two analyses, with different energy regimes covering the 9.3 ...
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ConferenceProceedings of Science · January 1, 2021
Core-collapse supernovae are expected to produce multimessenger signals. Low-energy neutrinos and gravitational waves are important to study the explosion mechanism of these events. The simulations and detections of gravitational waves from these events ar ...
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ConferenceJournal of Physics Conference Series · March 20, 2020
Coherent elastic neutrino-nucleus scattering (CEvNS), the gentlest kind of interaction of a neutrino with an entire nucleus, was first predicted in 1974, but not observed until 2017 by the COHERENT collaboration. COHERENT and many other experiments are pur ...
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ConferenceCPAD Instrumentation Frontier Workshop 2018: New Technologies for Discovery IV (CPAD 2018) Providence, RI, United States, December 9-11, 2018 · 2019Cite
ConferenceJournal of Physics Conference Series · May 1, 2015
I describe physics potential and experimental prospects for coherent elastic neutrino-nucleus scattering (CEvNS), a process which has not yet been observed. Germanium- based detectors represent a promising technology for CEvNS experiments. I focus primaril ...
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ConferenceProceedings, 12th Meeting of Task-Force on Shielding Aspects of Accelerators, Targets and Irradiation Facilities (SATIF-12): Batavia, IL, USA, April 28-30, 2014 · 2015Cite
ConferenceProceedings IEEE Virtual Reality · October 7, 2013
Located under Japan's Mount Ikenoyama, the Super-Kamiokande (or 'Super-K') neutrino detector is used to study neutrino particle physics. The Super-K detector consists of a cylindrical stainless steel tank (41.4m tall and 39.3m in diameter) holding 50,000 t ...
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ConferenceProceedings of the 33rd International Cosmic Rays Conference Icrc 2013 · January 1, 2013
Super-Kamiokande can search for dark matter by detecting neutrinos and muons which are produced by WIMP pair annihilations occur inside the Sun. The huge gravity and hydrogen-rich composition of the Sun combined with high sensitivity of Super-Kamiokande fo ...
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ConferenceProceedings, 2013 Community Summer Study on the Future of U.S. Particle Physics: Snowmass on the Mississippi (CSS2013): Minneapolis, MN, USA, July 29-August 6, 2013 · 2013Cite
ConferenceProceedings, 2013 Community Summer Study on the Future of U.S. Particle Physics: Snowmass on the Mississippi (CSS2013): Minneapolis, MN, USA, July 29-August 6, 2013 · 2013Cite
ConferenceAnnual Meeting of the Division of Particles and Fields of the American Physical Society, DPF 2006, and the Annual Fall Meeting of the Japan Particle Physics Community · 2006
• SK-III has been started and is taking data • SK-II data has been updated to its final 791d • Oscillation analysis with SK-I, SK-II data has been performed and shows consistency with final SK-I data set • SK-II shows consistency within the global analysis ...
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ConferenceAnnual Meeting of the Division of Particles and Fields of the American Physical Society Dpf 2006 and the Annual Fall Meeting of the Japan Particle Physics Community · January 1, 2006
• SK-III has been started and is taking data • SK-II data has been updated to its final 791d • Oscillation analysis with SK-I, SK-II data has been performed and shows consistency with final SK-I data set • SK-II shows consistency within the global analysis ...
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