Relativistic description of strong baryon-resonance decays

Autor:	Willibald Plessas, T. Melde
Rok vydání:	2008
Předmět:	Baryon Physics Particle physics Operator (physics) Quantum mechanics Nuclear Theory High Energy Physics::Phenomenology Resonance High Energy Physics::Experiment Covariant transformation Classification scheme Atomic and Molecular Physics and Optics
Zdroj:	Few-Body Systems. 44:83-85
ISSN:	1432-5411 0177-7963
DOI:	10.1007/s00601-008-0262-2
Popis:	We report some recent developments in the theoretical description of strong baryon-resonance decays within relativistic constituent-quark models. In particular, we address covariant predictions for partial decay widths obtained with a spectator-model decay operator in the framework of Poincare-invariant quantum mechanics. The main characteristics of the results for the π, η, and K decay widths are summarized and their consequences for the SU(3) flavor-multiplet classification of baryon resonances are indicated. It turns out that for a consistent picture to emerge some low-lying two-star resonances need to be included into the baryon classification scheme.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::252a7cd6ec06a6b2494e8fb3218c1cf4 https://doi.org/10.1007/s00601-008-0262-2 Zobrazit plný text záznamu Plný text ve formátu PDF