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Prog. Theor. Phys. Supplement No.117 (1994) pp. 281-306

[ Full Text PDF : FREE ACCESS (2773K) ]

Formation and Transition of Strangeness = -2 Nuclear Systems

Yasuo Yamamoto, Toshio Motoba,* Tomokazu Fukuda,** Miho Takahashi*** and Kiyomi Ikeda****

Physics Section, Tsuru University, Tsuru 402
*Laboratory of Physics, Osaka Electro-Communication University, Neyagawa 572
**Institute for Nuclear Study, University of Tokyo, Tanashi 188
***Graduate School of Science and Technology, Niigata University, Niigata 950-21
****Department of Physics, Niigata University, Niigata 950-21

(Received June 30, 1994)

Abstract:

A scenario is given for the formation of Ξ- states and the transitions to states with double-Λ. First, the production cross sections of Ξ hypernuclear states by (K-, K+) reactions on typical two targets (12C and 16O) are calculated within the framework of the distorted-wave impulse approximation. Next, the transition rates from Ξ- hypernuclear states to possible double-Λ states are evaluated, which are closely related to single- and double-Λ emission after Ξ-p →ΛΛ conversion in nuclei. The partial conversion widths for the atomic Ξ- absorption by 12C and 16O are also estimated in the similar say, discussing various possible final states. In order to extract an information on the Ξ-N interaction, the cross sections and Ξ state widths are given as a function of the Woods-Saxon well depth for the Ξ particle. The result is discussed in anticipation of observations in future experiments.


URL : http://ptp.ipap.jp/link?PTPS/117/281/
DOI : 10.1143/PTPS.117.281

[ Full Text PDF : FREE ACCESS (2773K) ] Citation:

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Citing Article(s) :

  1. Progress of Theoretical Physics Vol. 94 No. 1 (1995) pp. 151-155 :
    Narrow-Width Mechanism of A = 5 Ξ-State
    Izumi Kumagai-Fuse and Yoshinori Akaishi
  2. Progress of Theoretical Physics Vol. 119 No. 6 (2008) pp. 1005-1027 :
    Analysis of (K-,K+) Inclusive Spectrum with Semiclassical Distorted Wave Model
    Shintaro Hashimoto, Michio Kohno, Kazuyuki Ogata and Mitsuji Kawai
  3. Progress of Theoretical Physics Supplement No.117 (1994) pp. 265-279 :
    Formation and Fragmentation of Double-Λ Compound Nucleus
    Yasuo Yamamoto, Mitsuo Sano and Masamichi Wakai

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