Studies of high density baryon matter with high intensity heavy-ion beams at J-PARC

Sako, Hiroyuki   ; Harada, Hiroyuki  ; Sakaguchi, Takao*; Chujo, Tatsuya*; Esumi, Shinichi*; Gunji, Taku*; Hasegawa, Shoichi   ; Hwang, S.; Ichikawa, Yudai   ; Imai, Kenichi; Itakura, Kazunori*; Kaneta, Masashi*; Kim, B. C.*; Kinsho, Michikazu  ; Kitazawa, Masakiyo*; Liu, Y.*; Masui, Hiroshi*; Nagamiya, Shoji; Nishio, Katsuhisa   ; Okamura, Masahiro*; Oyama, Ken*; Ozawa, Kyoichiro*; Saha, P. K.   ; Sakaguchi, Atsushi*; Sato, Susumu  ; Shigaki, Kenta*; Sugimura, Hitoshi; Tanida, Kiyoshi   ; Tamura, Jun  ; Tamura, Hirokazu*; Nara, Yasushi*; Saito, Takehiko*

We are designing a large acceptance heavy-ion spectrometer at J-PARC based on a Toroidal magnet to measure hadrons, lepton pairs, and event-by-event fluctuations. We are also designing a closed geometry spectrometer to measure hypernuclei to study weak decays and magnetic moments. In this presentation, the preliminary version of the designed acceleration scheme, as well as the spectrometers and their expected performance and physics results are presented.