The Next Generation Kaon Experiment: KOTO-II

Yu-Chen Tung^1*, Chieh Lin², Yee Hsiung³

¹Department of Physics, National Kaohsiung Normal University, Kaohsiung, Taiwan
²Department of Physics, National Changhua University of Education, Changhua, Taiwan
³Department of Physics, National Taiwan University, Taipei, Taiwan

* Presenter:Yu-Chen Tung, email:yctung@mail.nknu.edu.tw

KOTO-II is the next-generation neutral kaon experiment at J-PARC, with the ambitious yet achievable goal of determining the branching ratio of K_L→π⁰νν decay with 5 σ precision. The CP-violating K_L→π⁰νν decay is often referred to as a "golden mode" due to its theoretical cleanness and unique sensitivity to new physics beyond the Standard Model. Additionally, KOTO-II, currently in the beamline and detector R&D stage, is being designed with broad research capabilities to explore various interesting physics topics. In this talk, I will present the current status, research possibilities, and timeline for KOTO-II.

Keywords: CP violation, kaon, rare decay