activity
20182026
most citedConstraint on the Matter-Antimatter Symmetry-Violating Phase in Neutrino Oscillations

374 citations · 1.6k across the 53 of their papers we have counts for

collaborators

60 papers

hep-ex2026

First observation of electron antineutrinos from nuclear reactors at Super-Kamiokande

K. Abe, Y. Asaoka, M. Harada +244

In 2020, Super-Kamiokande entered the SK-Gd phase, improving its sensitivity to low-energy electron antineutrinos through the detection of neutrons captured on gadolinium dissolved…

hep-ex2026

First double-differential measurement of pionless charged-current muon neutrino interactions using kinematic imbalance observables on carbon and oxygen with the T2K experiment

K. Abe, S. Abe, H. Adhikary +402

We report the first measurement of muon-neutrino charged-current cross section as a function of kinematic imbalance (KI) observables on oxygen with no pions and at least one proton…

hep-ex2026

Signal selection and model-independent extraction of pionless charged-current muon neutrino cross section using double-differential kinematic imbalance observables on carbon and oxygen with the T2K experiment

K. Abe, S. Abe, H. Adhikary +402

We present the first joint measurement of muon neutrino CC interactions on carbon and oxygen targets, in two double-differential kinematic imbalance (KI) observable spaces, $…

astro-ph.HE2026

Development of an early warning method incorporating pre-supernova neutrino light curves

Keita Saito, Minori Eizuka, Zhuojun Hu +9

Massive stars () emit neutrinos known as pre-supernova (pre-SN) neutrinos through thermal and nuclear interactions for cooling the stellar core during the fina…

astro-ph.HE2025

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…

astro-ph.HE2025★ 1 cited

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…

hep-ex2025★ 23 cited

Joint neutrino oscillation analysis from the T2K and NOvA experiments

NOvA, T2K Collaborations, : +597

The landmark discovery that neutrinos have mass and can change type (or "flavor") as they propagate -- a process called neutrino oscillation -- has opened up a rich array of theore…

hep-ex2025

Measurement of muon neutrino induced charged current interactions without charged pions in the final state using a new T2K off-axis near detector WAGASCI-BabyMIND

K. Abe, S. Abe, R. Akutsu +398

We report a flux-integrated cross section measurement of muon neutrino interactions on water and hydrocarbon via charged current reactions without charged pions in the final state…

hep-ex2025

Testing T2K's Bayesian constraints with priors in alternate parameterisations

The T2K Collaboration, K. Abe, S. Abe +400

Bayesian analysis results require a choice of prior distribution. In long-baseline neutrino oscillation physics, the usual parameterisation of the mixing matrix induces a prior tha…

hep-ex2025★ 1 cited

Results from the T2K experiment on neutrino mixing including a new far detector -like sample

The T2K Collaboration, K. Abe, S. Abe +404

We have made improved measurements of three-flavor neutrino mixing with 19.7(16.3) protons on target in (anti-)neutrino-enhanced beam modes. A new sample of muon-ne…

hep-ex2025

First measurement of neutron capture multiplicity in neutrino-oxygen neutral-current quasi-elastic-like interactions using an accelerator neutrino beam

T2K Collaboration, K. Abe, S. Abe +334

We report the first measurement of neutron capture multiplicity in neutrino-oxygen neutral-current quasi-elastic-like interactions at the gadolinium-loaded Super-Kamiokande detecto…

hep-ex2025

First Measurement of the Electron Neutrino Charged-Current Pion Production Cross Section on Carbon with the T2K Near Detector

K. Abe, S. Abe, R. Akutsu +392

The T2K Collaboration presents the first measurement of electron neutrino-induced charged-current pion production on carbon in a restricted kinematical phase space. This is perform…

hep-ex2025

First differential measurement of the single production cross section in neutrino neutral-current scattering

K. Abe, S. Abe, R. Akutsu +378

Since its first observation in the 1970s, neutrino-induced neutral-current single positive pion production (NC1) has remained an elusive and poorly understood interaction chan…

hep-ex2025★ 2 cited

Signal selection and model-independent extraction of the neutrino neutral-current single cross section with the T2K experiment

K. Abe, S. Abe, R. Akutsu +378

This article presents a study of single production in neutrino neutral-current interactions (NC1) using the FGD1 hydrocarbon target of the ND280 detector of the T2K expe…

hep-ex2024

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 pre…

hep-ex2024

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…

hep-ex2024★ 14 cited

Combined Pre-Supernova Alert System with Kamland and Super-Kamiokande

KamLAND, Super-Kamiokande Collaborations, : +311

Preceding a core-collapse supernova, various processes produce an increasing amount of neutrinos of all flavors characterized by mounting energies from the interior of massive star…

astro-ph.IM2024★ 3 cited

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…

astro-ph.HE2024

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…

physics.ins-det2024★ 23 cited

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…

hep-ex2023★ 46 cited

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…

hep-ex2023★ 35 cited

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…

hep-ex2023★ 1 cited

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…

hep-ex2023

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…