Publications (98)
Search for proton decay into three charged leptons in 0.37 megaton-years exposure of the Super-Kamiokande
Kamiokande Collaboration, M. Tanaka, K. Abe +178
A search for proton decay into three charged leptons has been performed by using 0.37Mtonyears of data collected in Super-Kamiokande. All possible combinations of electr…
PMT calibration for the JSNS2-II far detector with an embedded LED system
Jisu Park, M. K. Cheoun, J. H. Choi +53
The JSNS2-II (the second phase of JSNS2, J-PARC Sterile Neutrino Search at J-PARC Spallation Neutron Source) is an experiment aimed at searching for sterile neutrinos. This experim…
First Gadolinium Loading to Super-Kamiokande
K. Abe, C. Bronner, Y. Hayato +212
In order to improve Super-Kamiokande's neutron detection efficiency and to thereby increase its sensitivity to the diffuse supernova neutrino background flux, 13 tons of $\rm Gd_2(…
Supernova Model Discrimination with Hyper-Kamiokande
Kamiokande Collaboration, K. Abe, P. Adrich +499
Core-collapse supernovae are among the most magnificent events in the observable universe. They produce many of the chemical elements necessary for life to exist and their remnants…
Mini-Proceedings of the "Fourth International Workshop on the Extension Project for the J-PARC Hadron Experimental Facility (HEF-ex 2024)"
P. Achenbach, K. Aoki, S. Aoki +58
The mini proceedings of the "Fourth International Workshop on the Extension Project for the J-PARC Hadron Experimental Facility (HEF-ex 2024) [https://kds.kek.jp/event/46965]" held…
Penguins diagrams in Delta I=1/2 rule and ε'/εwith Ïmodels
M. Harada, Y. Keum, Y. Kiyo +3
We study the correlation between $\epe$ and rule in the framework of non-linear model including scalar mesons. The matrix elements of QCD and Electroweak (EW) pengui…
TeV-scale neutrino cross-section measurement using upward through-going muons in Super-Kamiokande
N. Bhuiyan, K. Abe, Y. Asaoka +248
Neutrinos provide a unique probe of both particle physics and the high-energy universe, traversing astronomical distances with minimal interaction. Their charged-current scattering…
Search for proton decay via and with a 0.37 Mton-year exposure of Super-Kamiokande
Kamiokande Collaboration, N. Taniuchi, K. Abe +288
A search for proton decay into and a meson has been performed using data from a 0.373 Mtonyear exposure (6050.3 live days) of Super-Kamiokande. Compared to p…
Study on the accidental background of the JSNS experiment
D. H. Lee, S. Ajimura, M. K. Cheoun +55
JSNS (J-PARC Sterile Neutrino Search at J-PARC Spallation Neutron Source) is an experiment which searches for sterile neutrinos via the observation of $\barν_μ \to \barν_{e}…
Improved method for measuring low concentration radium and its application to the Super-Kamiokande Gadolinium project
S. Ito, K. Ichimura, Y. Takaku +8
Chemical extraction using a molecular recognition resin named "Empore Radium Rad Disk" was developed to improve sensitivity for the low concentration of radium (Ra). Compared with…
Measurement of neutron production in atmospheric neutrino interactions at Super-Kamiokande
Kamiokande collaboration, S. Han, K. Abe +280
We present measurements of total neutron production from atmospheric neutrino interactions in water, analyzed as a function of electron-equivalent visible energy over a range of 30…
The JSNS data acquisition system
J. S. Park, S. Ajimura, M. Botran +58
The JSNS (J-PARC Sterile Neutrino Search at J-PARC Spallation Neutron Source) experiment aims to search for neutrino oscillations over a 24 m short baseline at J-PARC. The JS…
Slow control and monitoring system at the JSNS
J. S. Park, S. Ajimura, M. Botran +59
The JSNS experiment is aimed to search for sterile neutrino oscillations using a neutrino beam from muon decays at rest. The JSNS detector contains 17 tons of 0.1\% gadolin…
Muon tagging with Flash ADC waveform baselines
D. H. Lee, M. K. Cheoun, J. H. Choi +54
This manuscript describes an innovative method to tag the muons using the baseline information of the Flash ADC (FADC) waveform of PMTs in the JSNS1 (J-PARC Sterile Neutrino Search…
Status Report for the 20th J-PARC PAC : A Search for Sterile Neutrino at J-PARC MLF (J-PARC E56, JSNS2)
M. Harada, S. Hasegawa, Y. Kasugai +28
On April 2015, the J-PARC E56 (JSNS2: J-PARC Sterile Neutrino Search using neutrinos from J-PARC Spallation Neutron Source) experiment officially obtained stage-1 approval from J-P…
Measurement of the branching ratio of , , , and isotopes through the nuclear muon capture reaction in the Super-Kamiokande detector
Y. Maekawa, K. Abe, S. Abe +263
The Super-Kamiokande detector has measured solar neutrinos for more than years. The sensitivity for solar neutrino measurement is limited by the uncertainties of energy scale…
Measurement of coherent elastic neutrino nucleus scattering on germanium by COHERENT
M. Adhikari, M. Ahn, D. Amaya Matamoros +103
The COHERENT collaboration reports the most precise measurement of the coherent elastic neutrino-nucleus scattering cross section to date. This measurement was performed with COHER…
Solar neutrino measurements using the full data period of Super-Kamiokande-IV
Kamiokande Collaboration, K. Abe, C. Bronner +322
An analysis of solar neutrino data from the fourth phase of Super-Kamiokande~(SK-IV) from October 2008 to May 2018 is performed and the results are presented. The observation time…
Large Nc and Chiral Dynamics
M. Harada, F. Sannino, J. Schechter
We study the dependence on the number of colors of the leading pi pi scattering amplitude in chiral dynamics. We demonstrate the existence of a critical number of colors for and ab…
Development of a data overflow protection system for Super-Kamiokande to maximize data from nearby supernovae
M. Mori, K. Abe, Y. Hayato +252
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 large event rates, the…
Second gadolinium loading to Super-Kamiokande
K. Abe, C. Bronner, Y. Hayato +246
The first loading of gadolinium (Gd) into Super-Kamiokande in 2020 was successful, and the neutron capture efficiency on Gd reached 50\%. To further increase the Gd neutron capture…
Status Report for the 21th J-PARC PAC : Searching for a Sterile Neutrino at J-PARC MLF (J-PARC E56, JSNS2)
M. Harada, S. Hasegawa, Y. Kasugai +29
The JSNS2 (J-PARC E56) experiment aims to search for sterile neutrinos at the J-PARC Materials and Life Sciences Experimental Facility (MLF).After the submission of a proposal to t…
Integrating out Holographic QCD back to Hidden Local Symmetry
M. Harada, S. Matsuzaki, K. Yamawaki
We develop a previously proposed gauge-invariant method to integrate out infinite towers of vector and axialvector mesons arising as Kaluza-Klein (KK) modes in a class of holograph…
Search for neutron decay into an antineutrino and a neutral kaon in 0.401 megaton-years exposure of Super-Kamiokande
Kamiokande Collaboration, K. Yamauchi, K. Abe +261
We searched for bound neutron decay via predicted by the Grand Unified Theories in 0.401 Mtonyears exposure of all pure water phases in the Super-Kamiokande…
Search for Astronomical Neutrinos from Blazar TXS0506+056 in Super-Kamiokande
K. Hagiwara, K. Abe, C. Bronner +169
We report a search for astronomical neutrinos in the energy region from several GeV to TeV in the direction of the blazar TXS0506+056 using the Super-Kamiokande detector following…
Nontriviality of Gauge-Higgs-Yukawa System and Renormalizability of Gauged NJL Model
M. Harada, Y. Kikukawa, T. Kugo +1
In the leading order of a modified 1/Nc expansion, we show that a class of gauge-Higgs-Yukawa systems in four dimensions give non-trivial and well-defined theories in the continuum…
SO(10) SUSY GUT for Fermion Masses : Lepton Flavor and CP Violation
R. Dermisek, M. Harada, S. Raby
We discuss the results of a global analysis of a simple SO(10) SUSY GUT with family symmetry and low energy R parity. The model describes fermion mass matrices with 14…
Search for solar electron anti-neutrinos due to spin-flavor precession in the Sun with Super-Kamiokande-IV
Kamiokande Collaboration, K. Abe, C. Bronner +197
Due to a very low production rate of electron anti-neutrinos () via nuclear fusion in the Sun, a flux of solar is unexpected. An appearance of in so…
Indirect Search for Dark Matter from the Galactic Center and Halo with the Super-Kamiokande Detector
Kamiokande Collaboration, K. Abe, C. Bronner +269
We present a search for an excess of neutrino interactions due to dark matter in the form of Weakly Interacting Massive Particles (WIMPs) annihilating in the galactic center or hal…
Magnetic phase diagram of SrCaCoP
J. Sugiyama, H. Nozaki, I. Umegaki +8
In order to study the phase diagram from a microscopic viewpoint, we have measured wTF- and ZF-SR spectra for the SrCaCoP powder samples with , 0.2,…
Search for supernova bursts in Super-Kamiokande IV
Kamiokande collaboration, M. Mori, K. Abe +242
Super-Kamiokande has been searching for neutrino bursts characteristic of core-collapse supernovae continuously, in real time, since the start of operations in 1996. The present wo…
Characterization of the correlated background for a sterile neutrino search using the first dataset of the JSNS experiment
Y. Hino, S. Ajimura, M. K. Cheoun +62
JSNS (J-PARC Sterile Neutrino Search at J-PARC Spallation Neutron Source) is an experiment that is searching for sterile neutrinos via the observation of $\barν_μ \to \barν_…
The Hyper-Kamiokande Experiment -- Snowmass LOI
Kamiokande Collaboration, K. Abe, P. Adrich +387
Hyper-Kamiokande is the next generation underground water Cherenkov detector that builds on the highly successful Super-Kamiokande experiment. The detector which has an 8.4~times l…
New Methods and Simulations for Cosmogenic Induced Spallation Removal in Super-Kamiokande-IV
Kamiokande Collaboration, S. Locke, A. Coffani +215
Radioactivity induced by cosmic muon spallation is a dominant source of backgrounds for MeV neutrino interactions in water Cherenkov detectors. In particular, it…
Neutron imaging detector based on the muPIC micro-pixel chamber
J. D. Parker, K. Hattori, H. Fujioka +16
We have developed a prototype time-resolved neutron imaging detector employing the micro-pixel chamber (muPIC), a micro-pattern gaseous detector, coupled with a field programmable…
First results from the search for an excess of events in JSNS
D. H. Lee, S. Ajimura, A. Antonakis +79
The JSNS (J-PARC Sterile Neutrino Search at the J-PARC Spallation Neutron Source) experiment at the Material and Life Science Facility (MLF) of J-PARC is designed to directly t…
Proposal: JSNS-II
S. Ajimura, M. Botran, J. H. Choi +64
This article describes the goal and expected sensitivity of the JSNS-II experiment at J-PARC Materials and Life Science Experimental Facility (MLF). The JSNS-II experiment…
Neutron Tagging following Atmospheric Neutrino Events in a Water Cherenkov Detector
K. Abe, Y. Haga, Y. Hayato +301
We present the development of neutron-tagging techniques in Super-Kamiokande IV using a neural network analysis. The detection efficiency of neutron capture on hydrogen is estimate…
Neutron-Antineutron Oscillation Search using a 0.37 MegatonYear Exposure of Super-Kamiokande
Kamiokande Collaboration, K. Abe, C. Bronner +196
As a baryon number violating process with , neutron-antineutron oscillation () provides a unique test of baryon number conservation. We have performed a search f…
Technical Design Report (TDR): Searching for a Sterile Neutrino at J-PARC MLF (E56, JSNS2)
S. Ajimura, M. K. Cheoun, J. H. Choi +50
In this document, the technical details of the JSNS (J-PARC Sterile Neutrino Search at J-PARC Spallation Neutron Source) experiment are described. The search for sterile neutri…
Study of Light Scalar Meson Structure in decay
H. Hoshino, M. Harada, Y. L. Ma
We study the quark structure of the sigma meson through the decay of meson by constructing an effective Lagrangian for charmed mesons interacting with light mesons base…
Search for astrophysical electron antineutrinos in Super-Kamiokande with 0.01wt% gadolinium-loaded water
M. Harada, K. Abe, C. Bronner +238
We report the first search result for the flux of astrophysical electron antineutrinos for energies O(10) MeV in the gadolinium-loaded Super-Kamiokande (SK) detector. In June 2020,…
Search for Tens of MeV Neutrinos associated with Gamma-Ray Bursts in Super-Kamiokande
Kamiokande Collaboration, A. Orii, K. Abe +216
A search for neutrinos produced in coincidence with Gamma-Ray Bursts(GRB) was conducted with the Super-Kamiokande (SK) detector. Between December 2008 and March 2017, the Gamma-ray…
The first JSNS measurement of electron neutrino flux using reaction
T. Dodo, M. K. Cheoun, J. H. Choi +47
JSNS (J-PARC Sterile Neutrino Search at J-PARC Spallation Neutron Source) is an experiment searching for sterile neutrinos through the observation of $\barν_μ \rightarrow \ba…
Thermal Dilepton Production from Dropping rho in the Vector Manifestation
M. Harada, C. Sasaki
We study the pion electromagnetic form factor and the dilepton production rate in hot matter based on the vector manifestation (VM) of chiral symmetry in which the massless vector…
Enhancement of quark number susceptibility with an alternative pattern of chiral symmetry breaking in dense matter
M. Harada, C. Sasaki, S. Takemoto
We explore a possible phase where chiral symmetry is spontaneously broken while its center symmetry remains unbroken and its consequence on thermal q…
All Link Invariants for Two Dimensional Solutions of Yang-Baxter Equation and Dressings
N. Aizawa, M. Harada, M. Kawaguchi +1
All polynomial invariants of links for two dimensional solutions of Yang-Baxter equation is constructed by employing Turaev's method. As a consequence, it is proved that the best i…
Development of Ultra-pure Gadolinium Sulfate for the Super-Kamiokande Gadolinium Project
K. Hosokawa, M. Ikeda, T. Okada +20
This paper reports the development and detailed properties of about 13 tons of gadolinium sulfate octahydrate, , which has been dissolved into…
Neutron multiplicity measurement in muon capture on oxygen nuclei in the Gd-loaded Super-Kamiokande detector
Kamiokande Collaboration, S. Miki, K. Abe +282
In recent neutrino detectors, neutrons produced in neutrino reactions play an important role. Muon capture on oxygen nuclei is one of the processes that produce neutrons in water C…
A novel spectral broadening from vector--axial-vector mixing in dense matter
M. Harada, C. Sasaki
The presence of baryonic matter leads to the mixing between transverse and mesons through a set of -type interactions, which results in the modification to the…
Testing Non-Standard Interactions Between Solar Neutrinos and Quarks with Super-Kamiokande
Kamiokande Collaboration, P. Weatherly, K. Abe +268
Non-Standard Interactions (NSI) between neutrinos and matter affect the neutrino flavor oscillations. Due to the high matter density in the core of the Sun, solar neutrinos are sui…
Search for proton decay via and with an enlarged fiducial volume in Super-Kamiokande I-IV
Kamiokande Collaboration, A. Takenaka, K. Abe +211
We have searched for proton decay via and modes with the enlarged fiducial volume data of Super-Kamiokande from April 1996 to May 2018, which corresp…
Status Report (22th J-PARC PAC): Searching for a Sterile Neutrino at J-PARC MLF (E56, JSNS2)
M. Harada, S. Hasegawa, Y. Kasugai +34
The JSNS (J-PARC E56) experiment aims to search for a sterile neutrino at the J-PARC Materials and Life Sciences Experimental Facility (MLF). After the submission of a proposal…
Search for proton decay via in 0.37 megaton-years exposure of Super-Kamiokande
Kamiokande Collaboration, R. Matsumoto, K. Abe +229
We searched for proton decay via in 0.37\,Mtonyears of data collected between 1996 and 2018 from the Super-Kamiokande water Cherenkov experiment. The selection…
Search for neutrinos in coincidence with gravitational wave events from the LIGO-Virgo O3a Observing Run with the Super-Kamiokande detector
Kamiokande collaboration, K. Abe, C. Bronner +209
The Super-Kamiokande detector can be used to search for neutrinos in time coincidence with gravitational waves detected by the LIGO-Virgo Collaboration (LVC). Both low-energy ($7-1…
Status Report (BKG measurement): A Search for Sterile Neutrino at J-PARC MLF
M. Harada, S. Hasegawa, Y. Kasugai +31
At the 17th J-PARC PAC, which was held on September 2013, we proposed the sterile neutrino search at J-PARC MLF. After reviewing the proposal, PAC recommended to have a background…
First joint oscillation analysis of Super-Kamiokande atmospheric and T2K accelerator neutrino data
Super-Kamiokande, T2K collaborations, : +545
The Super-Kamiokande and T2K collaborations present a joint measurement of neutrino oscillation parameters from their atmospheric and beam neutrino data. It uses a common interacti…
Performance of PMTs for the JSNS2 experiment
J. S. Park, H. Furuta, T. Maruyama +58
The JSNS (J-PARC Sterile Neutrino Search at J-PARC Spallation Neutron Source) experiment aims to search for neutrino oscillations over a 24\,m short baseline at J-PARC. The J…
Search for Diffuse Supernova Neutrino Background with 956.2 days of Super-Kamiokande Gadolinium Dataset
K. Abe, S. Abe, Y. Asaoka +245
We report the search result for the Diffuse Supernova Neutrino Background (DSNB) in neutrino energies beyond 9.3~MeV in the gadolinium-loaded Super-Kamiokande (SK) detector with $2…
Modification on thermal motion in Geant4 for neutron capture simulation in Gadolinium loaded water
Y. Hino, K. Abe, R. Asaka +10
Neutron tagging is a fundamental technique for electron anti-neutrino detection via the inverse beta decay channel. A reported discrepancy in neutron detection efficiency between o…
Search for Periodic Time Variations of the Solar B Neutrino Flux between 1996 and 2018 in Super-Kamiokande
K. Abe, C. Bronner, Y. Hayato +233
We report a search for time variations of the solar B neutrino flux using 5804 live days of Super-Kamiokande data collected between May 31, 1996, and May 30, 2018. Super-Kamiok…
The COHERENT Experiment: 2026 Update
M. Adhikari, M. Ahn, D. Amaya Matamoros +107
The COHERENT experiment measures neutrino-induced recoils from coherent elastic neutrino-nucleus scattering (CEvNS) with multiple nuclear targets at the Spallation Neutron Source (…
Performance of SK-Gd's Upgraded Real-time Supernova Monitoring System
Y. Kashiwagi, K. Abe, C. Bronner +236
Among multi-messenger observations of the next galactic core-collapse supernova, Super-Kamiokande (SK) plays a critical role in detecting the emitted supernova neutrinos, determini…
Development of Faster and More Accurate Supernova Localization at Super-Kamiokande
K. Abe, Y. Asaoka, M. Harada +272
The next nearby core-collapse supernova (SN) promises to yield a treasure of scientific information through multi-messenger astronomy. Early observations of the shock breakout (SBO…
Development of a method for measuring rare earth elements in the environment for future experiments with gadolinium loaded detectors
S. Ito, T. Okada, Y. Takaku +7
Demand to use gadolinium (Gd) in detectors is increasing in the field of elementary particle physics, especially neutrino measurements and dark matter searches. Large amounts of Gd…
Measurement of the solar neutrino interaction rate below 3.49 MeV in Super-Kamiokande-IV
Kamiokande Collaboration, A. Yankelevich, K. Abe +250
Super-Kamiokande (SK) has observed solar neutrino elastic scattering at recoil electron kinetic energies () as low as 3.49 MeV to study neutrino flav…
Measurement of the cosmogenic neutron yield in Super-Kamiokande with gadolinium loaded water
Kamiokande Collaboration, M. Shinoki, K. Abe +238
Cosmic-ray muons that enter the Super-Kamiokande detector cause hadronic showers due to spallation in water, producing neutrons and radioactive isotopes. Those are a major backgrou…
First Associated Neutrino Search for a Failed Supernova Candidate with Super-Kamiokande
F. Nakanishi, K. Abe, S. Abe +243
In 2024, a failed supernova candidate, M31-2014-DS1, was reported in the Andromeda galaxy (M31), located at a distance of approximately 770 kpc. In this paper, we search for neutri…
Evaluation of the performance of the event reconstruction algorithms in the JSNS experiment using a Cf calibration source
D. H. Lee, M. K. Cheoun, J. H. Choi +50
JSNS searches for short baseline neutrino oscillations with a baseline of 24~meters and a target of 17~tonnes of the Gd-loaded liquid scintillator. The correct algorithm on the…
The JSNS^2 Detector
S. Ajimura, M. Botran, J. H. Choi +63
The JSNS^2 (J-PARC Sterile Neutrino Search at J-PARC Spallation Neutron Source) experiment aims to search for oscillations involving a sterile neutrino in the eV^2 mass-splitting r…
Scaling Behavior in Soliton Models
M. Harada, F. Sannino, J. Schechter +1
In the framework of chiral soliton models we study the behavior of static nucleon properties under rescaling of the parameters describing the effective meson theory. In particular…
Measurements of the charge ratio and polarization of cosmic-ray muons with the Super-Kamiokande detector
H. Kitagawa, T. Tada, K. Abe +253
We present the results of the charge ratio () and polarization () measurements using the decay electron events collected from 2008 September to 2022 June by the Super-…
Measurement of radionuclide production probabilities in negative muon nuclear capture and validation of Monte Carlo simulation model
Y. Yamaguchi, M. Niikura, R. Mizuno +6
As part of the development of a sample radioactivity calculation program, we have measured radionuclide production probabilities in negative muon nuclear capture to update experime…
Role of axial-vector mesons near the chiral phase transition
C. Sasaki, M. Harada, W. Weise
We present a systematic study of the vector--axial-vector mixing (V-A mixing) in the current correlation functions and its evolution with temperature within an effective field theo…
Measurement of the neutrino-oxygen neutral-current quasielastic cross section using atmospheric neutrinos in the SK-Gd experiment
S. Sakai, K. Abe, C. Bronner +233
We report the first measurement of the atmospheric neutrino-oxygen neutral-current quasielastic (NCQE) cross section in the gadolinium-loaded Super-Kamiokande (SK) water Cherenkov…
Dropping rho and A_1 Meson Masses at Chiral Phase Transition in the Generalized Hidden Local Symmetry
M. Harada, C. Sasaki
We study the chiral symmetry restoration using the generalized hidden local symmetry (GHLS) which incorporates the rho and A_1 mesons as the gauge bosons of the GHLS and the pion a…
Pre-Supernova Alert System for Super-Kamiokande
Kamiokande Collaboration, L. N. Machado, K. Abe +223
In 2020, the Super-Kamiokande (SK) experiment moved to a new stage (SK-Gd) in which gadolinium (Gd) sulfate octahydrate was added to the water in the detector, enhancing the effici…
Search for nucleon decay via and in 0.484 Mton-year of Super-Kamiokande data
Kamiokande Collaboration, S. Jung, K. Abe +243
We present the results of searches for nucleon decays via and using a 0.484 Mtyr exposure of Super-Kamiokande I-V data covering…
Search for Cosmic-ray Boosted Sub-GeV Dark Matter using Recoil Protons at Super-Kamiokande
Kamiokande Collaboration, K. Abe, Y. Hayato +218
We report a search for cosmic-ray boosted dark matter with protons using the 0.37 megatonyears data collected at Super-Kamiokande experiment during the 1996-2018 period (SK…
Vector-axialvector mixing in hot matter and its hadronic effective field theory description
C. Sasaki, M. Harada, W. Weise
We discuss the importance of the axialvector meson in chiral phase transition at finite temperature. We show that there exists a significant contribution in the vector spectral fun…
Diffuse Supernova Neutrino Background Search at Super-Kamiokande
Kamiokande Collaboration, K. Abe, C. Bronner +216
A new search for the diffuse supernova neutrino background (DSNB) flux has been conducted at Super-Kamiokande (SK), with a -ktonday exposure from its fourth…
Pulse Shape Discrimination in JSNS
T. Dodo, M. K. Cheoun, J. H. Choi +51
JSNS (J-PARC Sterile Neutrino Search at J-PARC Spallation Neutron Source) is an experiment that is searching for sterile neutrinos via the observation of $\barν_μ \rightarrow…
Search for proton decay via and in 0.401 megaton-years exposure of Super-Kamiokande I-V
Kamiokande Collaboration, K. Abe, S. Abe +310
We searched for proton decay via and in 0.401 megaton-years of data collected in all pure water detector phases of Super-Kamiok…
On-site Background Measurements for the J-PARC E56 Experiment: A Search for Sterile Neutrino at J-PARC MLF
S. Ajimura, T. J. C. Bezerra, E. Chauveau +22
The J-PARC E56 experiment aims to search for sterile neutrinos at the J-PARC Materials and Life Science Experimental Facility (MLF). In order to examine the feasibility of the expe…
Two-dimensional super Yang-Mills theory investigated with improved resolution
J. R. Hiller, M. Harada, S. S. Pinsky +2
In earlier work, N=(1,1) super Yang--Mills theory in two dimensions was found to have several interesting properties, though these properties could not be investigated in any detai…
Development of the Beam Monitor Detectors for the Low-E Beamline at the CERN SPS H2 Line
Y. Hino, M. Harada, N. Meguro +7
A series of beam tests were conducted at the KEK AR test beamline in ordet to investigate the performance of a prototype detector for instrumentation in the low-E beamline at the C…
Magnetic Impurity Effects on Ferromagnetic Fluctuations in Heavily Overdoped (Bi,Pb)SrCuFeO Cuprates
Y. Komiyama, S. Onishi, M. Harada +7
We investigated Fe-substitution effects on ferromagnetic fluctuations in the superconducting overdoped and non-superconducting heavily overdoped regimes of the Bi-2201 cuprates by…
The acrylic vessel for JSNS-II neutrino target
C. D. Shin, S. Ajimura, M. K. Cheoun +57
The JSNS (J-PARC Sterile Neutrino Search at J-PARC Spallation Neutron Source) is an experiment designed for the search for sterile neutrinos. The experiment is currently at t…
Hyperfine Splitting of Low-Lying Heavy Baryons
M. Harada, A. Qamar, F. Sannino +2
We calculate the next-to-leading order contribution to the masses of the heavy baryons in the bound state approach for baryons containing a heavy quark. These corrections a…
Study of Scalar Mesons and Related Radiative Decays
D. Black, M. Harada, J. Schechter
After a brief review of the puzzling light scalar meson sector of QCD, a brief summary will be given of a paper concerning radiative decays involving the light scalars. There, a si…
Proposal: A Search for Sterile Neutrino at J-PARC Materials and Life Science Experimental Facility
M. Harada, S. Hasegawa, Y. Kasugai +25
We propose a definite search for sterile neutrinos at the J-PARC Materials and Life Science Experimental Facility (MLF). With the 3 GeV Rapid Cycling Synchrotron (RCS) and spallati…
Sensitivity of Super-Kamiokande with Gadolinium to Low Energy Anti-neutrinos from Pre-supernova Emission
C. Simpson, K. Abe, C. Bronner +186
Supernova detection is a major objective of the Super-Kamiokande (SK) experiment. In the next stage of SK (SK-Gd), gadolinium (Gd) sulfate will be added to the detector, which will…
Atmospheric neutrino oscillation analysis with neutron tagging and an expanded fiducial volume in Super-Kamiokande I-V
Kamiokande Collaboration, T. Wester, K. Abe +233
We present a measurement of neutrino oscillation parameters with the Super-Kamiokande detector using atmospheric neutrinos from the complete pure-water SK I-V (April 1996-July 2020…
Vector-axialvector mixing from a chiral effective field theory at finite temperature
M. Harada, C. Sasaki, W. Weise
We study the vector-axialvector mixing in a hot medium and its evolution toward the chiral phase transition using different symmetry restoration scenarios based on the generalized…
Thermal Dilepton Production from Dropping rho based on the Vector Manifestation
M. Harada, C. Sasaki
We study the pion electromagnetic form factor and the dilepton production rate in hot matter using the hidden local symmetry theory as an effective field theory for pions and rho m…
Searching for neutrinos from solar flares across solar cycles 23 and 24 with the Super-Kamiokande detector
K. Okamoto, K. Abe, Y. Hayato +242
Neutrinos associated with solar flares (solar-flare neutrinos) provide information on particle acceleration mechanisms during the impulsive phase of solar flares. We searched using…
First Measurement of Missing Energy Due to Nuclear Effects in Monoenergetic Neutrino Charged Current Interactions
E. Marzec, S. Ajimura, A. Antonakis +80
We present the first measurement of the missing energy due to nuclear effects in monoenergetic, muon neutrino charged-current interactions on carbon, originating from $K^+ \rightar…
Implications of Holographic QCD in ChPT with Hidden Local Symmetry
M. Harada, S. Matsuzaki, K. Yamawaki
Based on the chiral perturbation theory (ChPT) with the hidden local symmetry, we propose a methodology to calculate the large corrections in the holographic QCD (HQCD). As a…