Pionic excitations and chiral symmetry in dense matter

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Abstract

This presentation discusses some recent developments in our under-standing of the lightest quark-antiquark excitations, both of the condensed QCD vacuum and in a nuclear medium. We focus on two selected topics: the thermodynamics of the chiral condensate and in-medium s-wave interactions of pions with special emphasis on the recently observed deeply bound pionic atom states.

Original languageEnglish
Pages (from-to)2715-2726
Number of pages12
JournalActa Physica Polonica B
Volume31
Issue number10-11
StatePublished - 2000

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