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Differential cross sections of neutral pion photoproduction from hydrogen in the energy region from 390 MeV to 975 MeV |
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| Authors: | M. Yoshioka A. Noda M. Daigo Y. Hemmi R. Kikuchi M. Minowa K. Miyake T. Nakamura M. Ono Y. Suzuki S. Kato K. Ukai K. Toshioka K. Sugano T. Shimomura T. Shinohara M. Chiba Y. Hoshi |
| Affiliation: | Department of Physics, Kyoto University, Kyoto, Japan;Institute for Nuclear Study, University of Tokyo, Tokyo, Japan;Department of Physics, University of Tokyo, Tokyo, Japan;Faculty of Technology, Tokyo University of Agriculture and Technology, Tokyo, Japan;Department of Physics, Tokyo Metropolitan University, Tokyo, Japan;Department of Science and Technology, Waseda University, Tokyo, Japan |
| Abstract: | The differential cross sections of the reaction γp→π0p have been measured at photon energies between 390 MeV and 975 MeV with an energy step of 20 or 25 MeV. The angular region covers 11 angles between 15° and 130° in the c.m.s. A combination of a magnetic spectrometer and photon detector was used for the measurement in the angular region from 50° to 130°. At forward angles of 15°, 35° and 50°, π0 mesons were detected using a π0 detector consisting of a pair of photon detectors. The data obtained with two different detection systems overlap at the angle of 50° and coincide with each other within the experimental error. The results are compared with those of phenomenological partial-wave analyses. |
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