The J-PARC heavy ion project Kyoichiro Ozawa, Kazuya Aoki, Shin-ichi Esumi, Taku Gunji, Takashi Hachiya, Hiroyuki Harada, Yudai Ichikawa, Masakiyo Kitazawa, Yasuo Miake, Yuhei Morino et al. (13 more) EPJ Web Conf., 271 (2022) 11004 Published online: 09 November 2022 DOI: 10.1051/epjconf/202227111004