H. Yoshida

activity

20052026

K_{L} \to π^{0} ν ν

and

K_{L} \to π^{0} X^{0}

Decays at the J-PARC KOTO Experiment

176 citations · 518 across the 17 of their papers we have counts for

collaborators

17 papers

hep-ex2026

The Search for $K_{L} \to π^{0} π^{0} γ γ$ and $K_{L} \to π^{0} π^{0} X$ where $X \to 2 γ$ at the KOTO Experiment

J. Redeker, C. Lin, Y. W. Wah +23

We performed searches for $K_{L} \to π^{0} π^{0} X$ where $X$ may be an axion-like particle which promptly decays to two photons, and the first search for $K_{L} \to π^{0} π^{0} γ γ$ …

hep-ex2025

Search for Dark Particles in $K_{L}^{0} \to γ X$ at the KOTO Experiment

T. Wu, Y. C. Tung, Y. B. Hsiung +24

We report a search for an invisible particle $X$ in the decay $K_{L}^{0} \to γ X$ ( $X \to invisible$ ), where $X$ can be interpreted as a massless or massive dark photon. N…

hep-ex2022★ 3 cited

Search for the Pair Production of Dark Particles $X$ with $K_{L}^{0} \to X X$ , $X \to γ γ$

C. Lin, J. K. Ahn, J. M. Choi +39

We present the first search for the pair production of dark particles $X$ via $K_{L}^{0} \to X X$ with $X$ decaying into two photons using the data collected by the KOTO experiment. No s…

nucl-ex2021★ 13 cited

Resonance-like structure near the $η d$ threshold in the $γ d$ { $\to$ } $π^{0} η d$ reaction

T. Ishikawa, H. Fujimura, H. Fukasawa +34

To investigate the interaction between the nucleon $N$ and nucleon resonance $N (1535) 1/ 2^{-}$ , the $η d$ threshold structure connected to the isoscalar $S$ -wave $N$ - $N (1535) 1/ 2^{-}$ sys…

hep-ex2020★ 57 cited

Study of the $K_{L} \to π^{0} ν ν$ Decay at the J-PARC KOTO Experiment

KOTO Collaboration, J. K. Ahn, B. Beckford +68

The rare decay $K_{L} \to π^{0} ν ν$ was studied with the dataset taken at the J-PARC KOTO experiment in 2016, 2017, and 2018. With a single event sensitivity of $( 7.20 \p…

hep-ex2020★ 3 cited

First Search for the $K_{L} \to π^{0} γ$ Decay

J. K. Ahn, B. Beckford, M. Campbell +59

We report the first search for the $K_{L} \to π^{0} γ$ decay, which is forbidden by Lorentz invariance, using the data from 2016 to 2018 at the J-PARC KOTO experiment. With a single ev…

The Search for KL​→π0π0γγ and KL​→π0π0X where X→2γ at the KOTO Experiment

Search for Dark Particles in KL0​→γX at the KOTO Experiment

Search for the Pair Production of Dark Particles X with KL0​→XX, X→γγ

Resonance-like structure near the ηd threshold in the γd{→}π0ηd reaction

Study of the KL​→π0νν Decay at the J-PARC KOTO Experiment