SHe Bound State in the 4HesK2, p2d Reaction at 600 MeVyc
نویسندگان
چکیده
M. Planinic Zagreb University, P.O. Box 162 Bijenička c. 32, HR-10 004 Zagreb, Croatia (Received 11 September 1997) We have observed a clear peak below the S-production threshold in the 4HesK2, pd reaction at 600 MeVyc and uKp 4±. This is confirmation of the existence of the bound state of SHe, which was reported in the 4Hesstopped K, pd reaction. As in the case of stopped kaons, no such peak was found in the 4HesK2, pd spectrum. Quantitatively reliable parameters for this level have been established. The binding energy and the width of the bound state are 4.4 6 0.3sstatd 6 1ssystd MeV and 7.0 6 0.7sstatd 20.0ssystd MeV, respectively. [S0031-9007(98)05364-2]
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