NP-HEP detector development cooperation in Japan

In this presentation, the efforts and prospects of EIC-Japan toward the realization of the EIC experiment will be discussed. Over the past few years, the EIC-Japan group, initiated by RIKEN, has worked towards this goal. Since EIC-Japan announced its participation, especially in the forward calorimetry, ZDC, and silicon detector, in the call for Expression of Interest from EIC in 2021, we are actively promoting the development of the EPIC detector. Many institutions, including Kobe University, Hiroshima University, and Shinshu University, joined EIC-Japan. Their activities will be discussed in this workshop as well.

The EPIC detector requires advanced technologies such as LGAD, which have been extensively developed in high-energy physics, primarily at KEK in Japan. Collaboration with the high-energy physics community is crucial in terms of sharing knowledge and technologies but also in terms of human resources and so on. A cooperative framework between nuclear physics and high-energy physics is highly demanded. The U.S.-Japan Science and Technology cooperation program in High Energy Physics may play a vital role in facilitating this collaboration. During this talk, the overview of the activities conducted by EIC-Japan, with a particular focus on the efforts to establish a cooperative framework between the nuclear physics and high-energy physics communities, will be provided with the current status and prospects.