Alternative experimental evidence for chiral restoration in excited baryons

It has been suggested that chiral symmetry is approximately restored in excited hadrons at zero temperature and density (effective symmetry restoration). Using very general chiral symmetry arguments, it is shown that those excited nucleons that are assumed from the spectroscopic patterns to be in ap...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Veröffentlicht in:	Physical review letters 2007-11, Vol.99 (19), p.191602-191602, Article 191602
1. Verfasser:	Glozman, L Ya
Format:	Artikel
Sprache:	eng
Schlagworte:	CHIRAL SYMMETRY CHIRALITY HIGH SPIN STATES MULTIPLETS N-1520 BARYONS PARTICLE DECAY PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	It has been suggested that chiral symmetry is approximately restored in excited hadrons at zero temperature and density (effective symmetry restoration). Using very general chiral symmetry arguments, it is shown that those excited nucleons that are assumed from the spectroscopic patterns to be in approximate chiral multiplets must only weakly decay into the Npi channel, (fN*Npi}/fNNpi)(2)
ISSN:	0031-9007 1079-7114
DOI:	10.1103/PhysRevLett.99.191602