Chiral Symmetry of Heavy-Light-Quark Hadrons in Hot/Dense Matter

Abstract

The recent discoveries by the BaBar and CLEO II collaborations on the splitting between $D_s$ and ${\tilde{D}}_s$ which exhibited surprises in the structure of heavy-light-quark systems are connected -- via the Harada-Yamawaki "vector manifestation" of hidden local symmetry -- to chiral symmetry restoration expected to take place at some critical temperature $T_c$ in heavy-ion collisions or at some critical density $n_c$ in the deep interior of compact stars, the main theme of this symposium. This unexpected connection exemplifies the diversity of astro-hadronic phenomena discussed in this meeting.

Comments: Concluding talk at the KIAS-APCTP Symposium in Astro-Hadron Physics "Compact Stars: Quest for New States of Dense Matter," November 10-14, 2003, Seoul, Korea