Measurement of the differential cross sections of the elastic scattering in momentum range 470 to 850 MeV/

Miwa, Koji*; Fujita, Manami; Hasegawa, Shoichi   ; Hosomi, Kenji  ; Ichikawa, Yudai   ; Imai, Kenichi*; Nanamura, Takuya; Naruki, Megumi; Sako, Hiroyuki   ; Sato, Susumu  ; Tamura, Hirokazu; Tanida, Kiyoshi   ; Yamamoto, Takeshi  ; 58 of others*

A high statistics scattering experiment is performed at the J-PARC Hadron Experimental Facility. Momentum-tagged s running in a liquid hydrogen target are accumulated by detecting the reaction with a high intensity beam of 20 M/spill. The differential cross sections of the elastic scattering were derived with a drastically improved accuracy by identifying approximately 4,500 events from 1.72 10 . The derived differential cross section shows a clear forward-peaking angular distribution for a momentum range from 470 to 850 MeV/. The accurate data will impose a strong constraint on the theoretical models of the baryon-baryon interactions.