High statistics scattering experiment using high intensity pion beams at J-PARC

Miwa, Koji*; Hasegawa, Shoichi   ; Hayakawa, Shuhei; Hosomi, Kenji  ; Imai, Kenichi; Kondo, Yasuhiro   ; Naruki, Megumi; Sako, Hiroyuki   ; Sato, Susumu  ; Sugimura, Hitoshi; Tamura, Hirokazu; Tanida, Kiyoshi   ; 40 of others*

In order to test theoretical frameworks of the Baryon-Baryon () interactions and to confirm the "Pauli effect between quarks" for the first time, we have proposed an experiment (J-PARC E40) to measure low-energy hyperon-proton scattering cross sections of the , elastic scatterings and the inelastic scattering in the momentum range of in the laboratory system. Experimentally, we detect two successive reactions of the production and the scattering () in the same liquid hydrogen target. The former is measured with two magnetic spectrometers, and the latter with a scattered proton detector (CATCH). By using a high intensity beam, we estimate that more than 10000 scattering events can be identified. In this experiment, we aim to provide good quality scattering data to test the theoretical models of the interaction.