Jung Keun Ahn, Antonella Antonelli, Giuseppina Anzivino, Emile Augustine, Laura Bandiera, Jianming Bian, Francesco Brizioli, Stefano De Capua, Gabriella Carini,… 展开作者
Jung Keun Ahn, Antonella Antonelli, Giuseppina Anzivino, Emile Augustine, Laura Bandiera, Jianming Bian, Francesco Brizioli, Stefano De Capua, Gabriella Carini, Veronika Chobanova, Giancarlo D'Ambrosio, John Bourke Dainton, Babette Dőbrich, John Fry, Alberto Gianoli, Alexander Glazov, Mario Gonzalez, Martin Gorbahn, Evgueni Goudzovski, Mei Homma, Yee B. Hsiung, Tomáš Husek, David Hutchcroft, Abhishek Iyer, Roger William Lewis Jones, Mai Katayama, Yuto Kawata, Eun-Joo Kim, Chong Kim, Takeshi Komatsubara, Katsushige Kotera, Michal Kreps, Gianluca Lamanna, Cristina Lazzeroni, Samet Lezki, GeiYoub Lim, Sanghoon Lim, Chieh Lin, Farvah Mahmoudi, Victoria Martin, Karim Massri, Toru Matsumura, Luigi Montalto, Matthew Moulson, Hajime Nanjo, Matthew Needham, Siavash Neshatpour, Tadashi Nomura, Daiki Ogawa, Keita Ono, Monica Pepe, Letizia Peruzzo, Jacopo Pinzino, Dan Protopopescu, Claire Prouve, Thomas Reddel, Joseph Redeker, Daniele Rinaldi, Marco Romagnoni, Angela Romano, Armine Rostomyan, Jack Sanders, Diego Martínez Santos, Ivano Sarra, Artur Shaikhiev, Koji Shiomi, Ryota Shiraishi, Mattia Soldani, Marco Sozzi, Benjamin Stillwell, Yi-Ting Su, Joel Swallow, Yasuhisa Tajima, Adam Tomczak, Yu-Chen Tung, Yau Wah, Rainer Wanke, Hiroaki Watanabe, John Wendel, Tong Wu, Maresa Wynd, Guang Yang
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Submitted to the J-PARC PAC. arXiv admin note: substantial text overlap with arXiv:2110.04462
The KOTO II experiment is proposed to measure the branching ratio of the decay $K_L\toπ^0ν\barν$ at J-PARC. With a beamline to extract long-lived neutral kaons at 5 degrees from a production target, the single event sensitivity of the decay is $8.5\times 10^{-13}$, which is much smaller than the Standard Model prediction $3\times 10^{-11}$. This allows searches for new physics beyond the Standard Model and the first discovery of the decay with a significance exceeding $5σ$. As the only experiment proposed in the world dedicated to rare kaon decays, KOTO II will be indispensable in the quest for a complete understanding of flavor dynamics in the quark sector. Moreover, by combining efforts from the kaon community worldwide, we plan to develop the KOTO II detector further and expand the physics reach of the experiment to include measurements of the branching ratio of the $K_L\toπ^0\ell^+\ell^-$ decays, studies of other $K_L$ decays, and searches for dark photons, axions, and axion-like particles. KOTO II will therefore obtain a comprehensive understanding of $K_L$ decays, providing further constraints on new physics scenarios with existing $K^+$ results.
Suppression of Neutron Background using Deep Neural Network and Fourier Frequency Analysis at the KOTO Experiment
Enrico Fermi Institute, University of Chicago（芝加哥大学费米研究所）；National Taiwan University（台湾大学）；Osaka University（大阪大学）；Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK)（高能加速器研究机构粒子核研究所在）
Search for Dark Particles in $K^0_L \to γX$ at the KOTO Experiment
National Taiwan University（台湾大学）；National Kaohsiung Normal University（高雄师范大学）；Korea University（高丽大学）；CERN, European Organization for Nuclear Research（欧洲核子研究中心（CERN））；Osaka University（大阪大学）；Jeonbuk National University（全北国立大学）；Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK)（高能加速器研究机构粒子与核物理研究所）；J-PARC Center（日本质子加速器研究设施中心）；National Changhua University of Education（彰化师范大学）；National Defense Academy（防卫大学校）
The Search for $K_L \rightarrow π^0π^0γγ$ and $K_L\rightarrow π^0π^0X$ where $X\rightarrow 2γ$ at the KOTO Experiment
Enrico Fermi Institute, University of Chicago（芝加哥大学费米研究所）；Department of Physics, National Changhua University of Education（国立彰化师范大学物理系）；Department of Physics, Korea University（高丽大学物理系）；CERN, European Organization for Nuclear Research（欧洲核子研究组织（CERN））；Department of Physics, Osaka University（大阪大学物理系）；Department of Physics, National Taiwan University（台湾大学物理系）；Division of Science Education, Jeonbuk National University（全北国立大学科学教育分院）；Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK)（高能加速器研究机构粒子与核物质研究所）；J-PARC Center（日本质子加速器研究中心）
KEK Theory Center, IPNS, KEK（高能加速器研究机构理论中心，粒子核物理研究部）；Graduate Institute for Advanced Studies, SOKENDAI（综合研究大学院大学高等研究院）；Department of Physics, The University of Osaka（大阪大学物理学系）
Prospects for $K_{L}\toπ^{0}ν\barν$, $K_S\toμ^+μ^-$, $K_L\toπ^0 \ell^+\ell^-$ and $\varepsilon^{\prime}/\varepsilon$ after the new $K^{+}\toπ^{+}ν\barν$ result from NA62
Karlsruhe Institute of Technology（卡尔斯鲁厄理工学院）；University of Birmingham（伯明翰大学）；CERN（欧洲核子研究中心）
A proposal for experiment with high-intensity tritium neutrino source in Sarov: The search for coherent elastic neutrino-atom scattering and neutrino magnetic moment
