SU(3) flavor symmetry considerations for the K–N coupled channels system

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F22%3A00557575" target="_blank" >RIV/61389005:_____/22:00557575 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.nuclphysa.2021.122378" target="_blank" >https://doi.org/10.1016/j.nuclphysa.2021.122378</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.nuclphysa.2021.122378" target="_blank" >10.1016/j.nuclphysa.2021.122378</a>

Jazyk výsledku

angličtina

Název v původním jazyce

SU(3) flavor symmetry considerations for the K–N coupled channels system

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

SU(3) flavor symmetry considerations for the K–N coupled channels system

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10303 - Particles and field physics

Projekt

<a href="/cs/project/GA19-19640S" target="_blank" >GA19-19640S: Studium interakcí hadronů, jejich produkce a vázaných stavů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Nuclear Physics. A

ISSN

0375-9474

e-ISSN

1873-1554

Svazek periodika

1019

Číslo periodika v rámci svazku

MAR

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

20

Strana od-do

122378

Kód UT WoS článku

000791839100003

EID výsledku v databázi Scopus

2-s2.0-85122502080