Sendai Nuclear Science Colloquium (No. 162)

Nuclear K-bar Bound States as Dense and Cold Systems

赤石 義紀

高エネルギー加速器研究機構　教授

日時：2002年12月17日（火） 16:20-17:50

場所：東北大学理学部物理C棟208号室

The possible existence of deeply bound nuclear K-bar states will bediscussed. The nuclear ground states of a K- in (pp), 3He, and 8Beare predicted to be discrete states with binding energies of 48,108 and 113 MeV and widths of 61, 20 and 38 MeV, respectively.It is found that a substantial contraction of the surrounding nucleusis induced due to the strong attraction of the I=0 K-bar N pair, thusforming an unusually dense and cold nuclear medium. If such exoticstates are confirmed experimentally,"bound-kaon nuclear spectroscopy"would create a new paradigm in strangeness nuclear physics.

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