Baryon masses in large Nc chiral perturbation theory

Yongseok Oh; W. Weise

doi:10.1007/s100500050245

Baryon masses in large N_c chiral perturbation theory

Yongseok Oh
, W. Weise

Department Physics

Technische Universität München
Seoul National University

Publikation: Beitrag in Fachzeitschrift › Artikel › Begutachtung

20 Zitate (Scopus)

Abstract

We analyse the baryon mass spectrum in a framework which combines the 1/N_c expansion with chiral perturbation theory. Meson loop contributions involving the full SU(3) octet of pseudoscalar Goldstone bosons are evaluated, and the influence of explicit chiral and flavor symmetry breaking by non-zero and unequal quark masses is investigated. We also discuss sigma terms and the strangeness contribution to the nucleon mass.

Originalsprache	Englisch
Seiten (von - bis)	363-380
Seitenumfang	18
Fachzeitschrift	European Physical Journal A
Jahrgang	4
Ausgabenummer	4
DOIs	https://doi.org/10.1007/s100500050245
Publikationsstatus	Veröffentlicht - 1999

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AB - We analyse the baryon mass spectrum in a framework which combines the 1/Nc expansion with chiral perturbation theory. Meson loop contributions involving the full SU(3) octet of pseudoscalar Goldstone bosons are evaluated, and the influence of explicit chiral and flavor symmetry breaking by non-zero and unequal quark masses is investigated. We also discuss sigma terms and the strangeness contribution to the nucleon mass.

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DO - 10.1007/s100500050245

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