A search for deeply-bound kaonic nuclear state at the J-PARC E15 experiment

S Ajimura,H Tatsuno,Y Sada,H Kou,M Sekimoto,M Poli Lener,K Itahashi,M Iwai,L Busso,O Morra,K Suzuki,D Faso,T Suzuki,K Piscicchia,M Iwasaki,A Romero Vidal,D Tomono,C Guaraldo,Y Ishiguro,T Ishiwatari,S Ishimoto,M Iliescu,T Yamazaki,Hiroyuki Fujioka ,T Nagae ,A Toyoda ,Iio M ,O Vázquez Doce ,J Márton ,H Yim ,E Widmann ,S Enomoto ,T Fukuda ,Makoto Tokuda ,T Hiraiwa ,F Sakuma ,Kentaro Inoue ,R Hayano ,M Bragadireanu ,S Suzuki ,K Tsukada ,H Ohnìshì ,G A Beer ,Paul Kienle ,P Bühler ,Y Mizoi ,Takashi Ishikawa ,C Curceanu ,S Okada ,M Cargnelli ,H Shi ,A Scordo ,Yue Ma ,H Outa ,Yuya Fujiwara ,Masaharu Sato ,H Noumi ,Seonho Choi ,D Sirghi ,Toshikazu Hashimoto ,A Sakaguchi ,Y Matsuda ,Shingo Kawasaki ,F Sirghi ,H Bhang ,J Zmeskal

doi:10.1016/j.nuclphysa.2013.04.013

Abstract

Abstract The J-PARC E15 experiment will be performed to search for the simplest kaonic nuclear bound state, K ¯ N N , by the in-flight He 3 ( K − , N ) reaction. The exclusive measurement will be performed by a simultaneous measurement of the missing mass using the forward neutron or proton, and the invariant mass via the expected decay, e.g. K − p p → Λ p → p π − p . In this report, an overview of the experiment and an analysis of engineering runs performed in February and June are presented.

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