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Prog. Theor. Phys. Vol. 105 No. 4 (2001) pp. 627-648

ΞN and ΞΞ OBEP and Ξ^--Nucleus Bound States

Masahiro Yamaguchi,¹ Kouji Tominaga,^1,*) Yasuo Yamamoto² and Tamotsu Ueda¹

¹Faculty of Science, Ehime University, Matsuyama 790-8577, Japan
²Physics Section, Tsuru University, Tsuru 402-8555, Japan

(Received November 29, 2000)

Abstract:

One-boson-exchange potentials (OBEP) for ΞN and ΞΞ systems are derived in extension from the NN OBEP of Ueda, Riewe and Green in the framework of SU(3) invariance with effective nonet mesons in addition to the effective SU(3)-violating σ meson. The ΞN OBEP is applied to Ξ^--nucleus bound states. The SU(3) parameters that were determined in fitting the ŁN system are used. Only the coupling constant g_ΞΞσ is newly adjustable. This is determined so as to reproduce the energies of Ξ^--¹²C bound states. With the best value, we predict the scattering and bound states for ΞN and ΞΞ systems. In particular, we predict a Ξ -¹¹B bound state in agreement with the experimental results of the E885 collaboration.

URL : http://ptp.ipap.jp/link?PTP/105/627/
DOI : 10.1143/PTP.105.627

^*)Present address: RCNP, Osaka University, Osaka 567-0047, Japan.

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3. Progress of Theoretical Physics Supplement No. 185 (2010) pp. 335-343 :

   Experimental Study of Double-Λ Hypernuclei with Nuclear Emulsion

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