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Seminars & Lectures

* TITLE

Deeply-bound kaonic nuclear states - a new paradigm in Nuclear Physics

* SPEAKERS

Name	Affiliation	E-mail
Yoshinori Akaishi	KEK

* HOST(Applicant)

Name	Affiliation	E-mail
-

* DATE / TIME

2005-04-20, 4:00 p.m

* PLACE

서울대학교 상산수리과학관 1층 강당

* ABSTRACT

We predicted strongly bound kaonic states in few-body nuclei, the binding of which are on the order of 100 MeV: the separation energies of a K- in 3He and 4He are calculated to be 108 and 86 MeV with widths of 20 and 34 MeV, respectively. A substantial contraction of the kaonic nuclei is induced due to the strong KN attraction, thus forming unusually-dense nuclear objects. Since these kaonic nuclei have large densities more than 3-times the normal density, they provide a unique playground for studying possible QCD structure in dense and cold nuclear medium. We discuss implications of recent report on strange tri-baryons, S0(3115) and S+(3140) obtained from 4He(stopped K-, N) experiments at KEK. A new paradigm is discussed, which would be closely related to important issues of "chiral symmetry restoration", "kaon condensation" and "strange matter".

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