Yosuke Watanabe K.Utsunomiya, K.Ozawa, Y.Komatsu, S. Masumoto, T. Sato K. Aoki A,H.Enyo A, S....

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Transcript of Yosuke Watanabe K.Utsunomiya, K.Ozawa, Y.Komatsu, S. Masumoto, T. Sato K. Aoki A,H.Enyo A, S....

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Yosuke Watanabe K.Utsunomiya, K.Ozawa, Y.Komatsu, S. Masumoto, T. Sato K. Aoki A,H.Enyo A, S. Yokkaichi A T. Gunji B, H. Hamagaki B, Y. Hori B, T.Tsuji B M. Sekimoto C University of Tokyo, RIKEN A, CNS B, KEK C, Development of GEM detectors for a large acceptance meson spectrometer 1 Slide 2 Outline 2 1. J-PARC E16 experiment 2. GEM tracker Setup Result of beamtests 3. Further improvement 4. Summary Slide 3 J-PARC E16 experiment 3 p KEK PS E325 Mass modification exist 30 GeV 100 times more statistc 2 times better resolution Systematic study -Momentum dependence -Nuclear size depencence M =11MeV,