講演題目：　Multistrange Nuclei
--- Recent Experimental and Theoretical Developments ---

講　師　：　Prof. Avraham Gal (Hebrew University, Israel)
　　　　　　　　 
日　時　：　平成14年9月20日（金）　10:30-
場　所　：　北海道大学大学院理学研究科物理学専攻　大学院講義室
　　　　　　　理学部　2号館（2−11号室）

要　旨　：
　 　Recent developments of multi-strange nuclear physics are overviewed, highlighting the recent experimental and theoretical developments in Lambda-Lambda hypernuclei. By applying the exact treatment of few-body (three- and four-) quantum systems, we can assess the strength of the Lambda-Lambda interactions based on the world data of Lambda-Lambda hypernuclear binding energies, including those of recently observed Lambda-Lambda-4H and Lambda-Lambda-6He nuclei. The most clear event (Lambda-Lambda-6He) supports a one-boson-exchange soft core model (NSC97),
and Faddeev calculations using the same interaction further suggest that Lambda-Xi-6He marks the onset of nuclear stability for Xi hyperons or the S = -3 world.

世話人　大西 明　（北海道大学大学院理学研究科）
　 　　　　　　　Fax. 011-706-4926 Tel. 011-706-2689
　　　　　　　　 http://nucl.sci.hokudai.ac.jp/~ohnishi/
　　　　　　　　 e-mail:　ohnishi@nucl.sci.hokudai.ac.jp