Bulletin of the American Physical Society
6th Joint Meeting of the APS Division of Nuclear Physics and the Physical Society of Japan
Sunday–Friday, November 26–December 1 2023; Hawaii, the Big Island
Session E05: Minisymposium: Baryon-Baryon Interactions Involving Strangeness I
7:00 PM–9:15 PM,
Wednesday, November 29, 2023
Hilton Waikoloa Village
Room: Queens 4
Chair: Satoshi Nakamura
Abstract: E05.00004 : The (σ·σ)-component of ΞN interaction and the 12C(K-,K+) Ξ12Be reaction spectrum*
8:00 PM–8:15 PM
Presenter:
Toshio Motoba
(Osaka Electro-Comm Univ)
Authors:
Toshio Motoba
(Osaka Electro-Comm Univ)
Yasuo Yamamoto
(Tsuru University)
Atsushi Umeya
(Nippon Institue of Technology)
In order to find a helpful window for coming spectroscopic analysis, here we focus on the typical 12C(K-,K+) Ξ12Be reaction case and study how the cross section pattern is related to the strength of (σ·σ)-component of ΞN interaction. As the spin structures of the 12C(0+) ground state wave function and also the 11B(J-n) low-lying state ones are rather well known when one takes L-S coupling shell model, the resultant Ξ-hypernuclear states of Ξ12Be (Jf) = 11B+Ξ- have also proper spin structures depending sensitively on the (σ·σ)-component strength of the adopted ΞN interaction. These situations help us analyse the different pattern of theoretical Ξ-hypernuclear production cross sections. The obtained close relation between the cross section spectrum and the (σ·σ)-component strength will be discussed in anticipation of interesting comparison with high-resolution (K-,K+) experimental data that are expected in near future.
*Supprted in part by JSPS Kakenhi Grant No. JP20K03950.
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