T. Sekiguchi

collaborators

6 papers

astro-ph.HE2026

Indication of Electron Antineutrinos from the Diffuse Supernova Neutrino Background

Kamiokande Collaboration, K. Abe, Y. Asaoka +247

We report an indication of $ν ˉ_{e}$ from the diffuse supernova neutrino background (DSNB) based on a spectral fit analysis of a 5003.0-day dataset in Super-Kamiokande. Key improve…

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

Search for the $^{16} O (ppp) \to^{13} C π^{+} π^{+} e^{+}$ Decay Mode in Super-Kamiokande Using Machine Learning Techniques

Kamiokande Collaboration, J. Feng, K. Abe +296

We report a new partial lifetime limit of $4.2 \times 1 0^{32}$ years for the trinucleon decay mode $^{16} O (ppp) \to^{13} C π^{+} π^{+} e^{+}$ , obtained from a searc…

hep-ex2026

Search for proton decay into a single charged antilepton and a massless invisible particle using the full pure water data set of Super-Kamiokande

Kamiokande Collaboration, Y. M. Liu, K. Terada +244

A search for proton decay via $p \to l^{+} + X$ , where $l^{+}$ is a positively charged lepton and $X$ is an invisible, massless, neutral particle, was performed using a 401~kt…

astro-ph.HE2026

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…

hep-ex2025

Search for nucleon decay via $p \to ν π^{+}$ and $n \to ν π^{0}$ 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 $p \to ν π^{+}$ and $n \to ν π^{0}$ using a 0.484 Mt $\cdot$ yr exposure of Super-Kamiokande I-V data covering the…

Indication of Electron Antineutrinos from the Diffuse Supernova Neutrino Background

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

Search for the 16O(ppp)→13Cπ+π+e+ Decay Mode in Super-Kamiokande Using Machine Learning Techniques

Search for proton decay into a single charged antilepton and a massless invisible particle using the full pure water data set of Super-Kamiokande

Development of Faster and More Accurate Supernova Localization at Super-Kamiokande

Search for nucleon decay via p→νπ+ and n→νπ0 in 0.484 Mton-year of Super-Kamiokande data

Search for the $^{16} O (ppp) \to^{13} C π^{+} π^{+} e^{+}$ Decay Mode in Super-Kamiokande Using Machine Learning Techniques

Search for nucleon decay via $p \to ν π^{+}$ and $n \to ν π^{0}$ in 0.484 Mton-year of Super-Kamiokande data