Author:
Sakuma Fuminori,Ajimura Shuhei,Akaishi Takaya,Asano Hidemitsu,Bazzi Massimiliano,Beer George,Bhang Hyoungchan,Bragadireanu Mario,Buehler Paul,Busso Luigi,Cargnelli Michael,Choi Seonho,Clozza Alberto,Curceanu Catalina,Enomoto Shun,Fujioka Hiroyuki,Fujiwara Yuya,Fukuda Tomokazu,Guaraldo Carlo,Hashimoto Tadashi,Hayano Ryugo S.,Hiraiwa Toshihiko,Iio Masami,Iliescu Mihai,Inoue Kentaro,Ishiguro Yosuke,Ishikawa Takashi,Ishimoto Shigeru,Itahashi Kenta,Iwasaki Masahiko,Iwai Masaaki,Kanno Koki,Kato Kazuma,Kato Yuko,Kawasaki Shingo,Kienle Paul,Kou Hiroshi,Ma Yue,Marton Johann,Matsuda Yasuyuki,Miliucci Marco,Mizoi Yutaka,Morra Ombretta,Murayama Rie,Nagae Tomofumi,Noumi Hiroyuki,Ohnishi Hiroaki,Okada Shinji,Outa Haruhiko,Ozawa Kyoichiro,Piscicchia Kristian,Sada Yuta,Sakaguchi Atsushi,Sato Masaharu,Scordo Alessandro,Sekimoto Michiko,Shi Hexi,Shirotori Kotaro,Sirghi Diana,Sirghi Florin,Suzuki Shoji,Suzuki Takatoshi,Tanida Kiyoshi,Tatsuno Hideyuki,Tokuda Makoto,Tomono Dai,Toyoda Akihisa,Tsukada Kyo,Vázquez Doce Oton,Widmann Eberhard,Yamaga Takumi,Yamazaki Toshimitsu,Yoshida Chihiro,Zhang Qi,Zmeskal Johann
Abstract
The possible existence of deeply-bound $\bar K$-nuclear bound states, kaonic nuclei, has been widely discussed as products of the strongly attractive $\bar K$Ninteraction in I = 0 channels. Investigations of those exotic states will provide us unique information of the $\bar K$Ninteraction below the threshold, which is still not fully understood so far. Recently, we observed the simplest kaonic nuclei, $\bar K$NN, having a much deeper binding energy than normal nuclei via inflight (K−,N) reactions at the J-PARC E15 experiment. For further studies, we have proposed a series of experimental programs for the systematic investigation of light kaonic nuclei, from $\bar K$N(Λ(1405)) to $\bar K$NNNN. We will measure the $\bar K$NNN(A= 3) system at the new experiment approved as J-PARC E80, as a first step toward a comprehensive study.