SU(3) flavor symmetry considerations for the K–N coupled channels system
Result description
We study the impact of SU(3) flavor symmetry breaking on the properties of dynamically generated Lambda* states within an effective separable potential model describing the coupled channels K(over bar)N system. The model is based on the chiral meson-baryon Lagrangian at next-to-leading order, and constitutes an improvement over a previous model developed by our group, with its applicability being extended to higher energies covering the Lambda(1670) resonance region. It is demonstrated that the ratios of channel couplings to the resonant states can vary dramatically when the flavor breaking is gradually switched off, tracing a path to the restored SU(3) symmetry. We conclude that the couplings determined from physical observables cannot be used to reliably relate a given resonance to a specific flavor multiplet.
Keywords
K(over bar)N interactionsSU(3) flavor symmetryLambda resonances
The result's identifiers
Result code in IS VaVaI
Result on the web
DOI - Digital Object Identifier
Alternative languages
Result language
angličtina
Original language name
SU(3) flavor symmetry considerations for the K–N coupled channels system
Original language description
We study the impact of SU(3) flavor symmetry breaking on the properties of dynamically generated Lambda* states within an effective separable potential model describing the coupled channels K(over bar)N system. The model is based on the chiral meson-baryon Lagrangian at next-to-leading order, and constitutes an improvement over a previous model developed by our group, with its applicability being extended to higher energies covering the Lambda(1670) resonance region. It is demonstrated that the ratios of channel couplings to the resonant states can vary dramatically when the flavor breaking is gradually switched off, tracing a path to the restored SU(3) symmetry. We conclude that the couplings determined from physical observables cannot be used to reliably relate a given resonance to a specific flavor multiplet.
Czech name
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Czech description
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Classification
Type
Jimp - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10303 - Particles and field physics
Result continuities
Project
GA19-19640S: Study of Hadron Interactions, Production and Bound States
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Nuclear Physics. A
ISSN
0375-9474
e-ISSN
1873-1554
Volume of the periodical
1019
Issue of the periodical within the volume
MAR
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
20
Pages from-to
122378
UT code for WoS article
000791839100003
EID of the result in the Scopus database
2-s2.0-85122502080
Basic information
Result type
Jimp - Article in a specialist periodical, which is included in the Web of Science database
OECD FORD
Particles and field physics
Year of implementation
2022