Abstract
Experiments on pd scattering, pd capture and pd breakup performed by our Kyushu University group since 1988 are reviewed. Various discrepancies between the experimental results and 3N Faddeev calculations have been found, and systematical measurements of the discrepancies have been made. From discrepancies in pd scattering cross section and in 3N binding energy, 2π-exchange 3N force was determined, and the discrepancies were satisfactorily diminished. There are, however, still many discrepancies awaiting theoretical investigation, as described in this report.
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Acknowledgments
Experimental studies described in this report were made by many collaborators over about 25 years. The experimental collaborators were from Kyushu University, RCNP Osaka University, Kyoto University, University of Tokyo, RIKEN, Tohoku University, and Miyazaki University. In these experimental studies, six doctoral theses were written by S. Shimizu (1992), N. Nishimori (1996), H. Akiyoshi (1997), T. Fujita (1999), T. Yagita (2002) and Y. Tameshige (2008), and S. Kuroita will finish his doctoral thesis in 2011. In addition to the above doctoral students, the following members have collaborated in the experimental studies; K. Hatanaka, A. Tamii, T. Wakasa, H. Okamura, H. Nakamura, T. Nakashima, K. Maeda, Y. Sakemi, T. Noro, T.P. Yoshida, Y. Maeda, K. Sekiguchi, J. Kamiya, Y. Shimizu, T. Kawabata, K. Fujita, M. Matsubara, H. Oguri, H. Ochiishi, S. Ueno, T. Miwa, T. Bussaki, K. Shigenaga, K. Ogata, K. Tachikawa, M. Kondo, S. Minami, T. Ishida, H. Ochi, S. Nozoe, M. Shiota, S. Shimomoto, T. Kudoh, H. Ohira, M. Tomiyama, T. Sugimoto, H. Shimoda, T. Sueta, Y. Eguchi, K. Yashima and Y. Tabe. The author wishes to thank above members for their contributions in our 3N experiments at KUTL, RCNP and RIKEN. The author also wishes to thank the following collaborators for their theoretical calculations and discussions of 3N reactions; Y. Koike, N. Takemiya, S. Ishikawa, H. Kamada, H. Witała, W. Glöckle, J. Golak, A. Kievsky, and A. Deltuva. Many progresses have been made from comparison of our experimental data to their calculations. The author also appreciate much technical staffs at KUTL, T. Maeda for preparing various electrical circuits, and Y. Koga for manufacturing many metal parts by machinery. The author thank to S. Kuroita, K. Yashima and T. Yabe for their help in preparation of the manuscript. The author would like to express his appreciation to the editors for the opportunity to present this report.
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Open Access This is an open access article distributed under the terms of the Creative Commons Attribution Noncommercial License (https://creativecommons.org/licenses/by-nc/2.0), which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.
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Sagara, K. Experimental Investigations of Discrepancies in Three-Nucleon Reactions. Few-Body Syst 48, 59–108 (2010). https://doi.org/10.1007/s00601-010-0096-6
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DOI: https://doi.org/10.1007/s00601-010-0096-6