Constraining the chirally motivated πΣ−K¯N models with the πΣ photoproduction mass spectra

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F24%3A00584293" target="_blank" >RIV/61389005:_____/24:00584293 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.nuclphysa.2024.122819" target="_blank" >https://doi.org/10.1016/j.nuclphysa.2024.122819</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.nuclphysa.2024.122819" target="_blank" >10.1016/j.nuclphysa.2024.122819</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Constraining the chirally motivated πΣ−K¯N models with the πΣ photoproduction mass spectra

Popis výsledku v původním jazyce

The paper presents a first time attempt on a combined fit of the K(-)p low-energy data and the pi Sigma photoproduction mass spectra, performed without fixing the meson-baryon rescattering amplitudes to a specific pi Sigma - (k) over barN coupled channels model obtained from fitting exclusively the K(-)p data. The formalism adopted to describe the photoproduction process is based on chiral perturbation theory and employs a limited number of free parameters. The achieved description of the photoproduction mass distributions is not quite satisfactory, leaving a room for improving the photo-kernel construction. Although the presented models tend to constrain the positions of the Lambda(1405) poles it is difficult to draw any conclusions before accomplishing better data reproduction.

Název v anglickém jazyce

Constraining the chirally motivated πΣ−K¯N models with the πΣ photoproduction mass spectra

Popis výsledku anglicky

The paper presents a first time attempt on a combined fit of the K(-)p low-energy data and the pi Sigma photoproduction mass spectra, performed without fixing the meson-baryon rescattering amplitudes to a specific pi Sigma - (k) over barN coupled channels model obtained from fitting exclusively the K(-)p data. The formalism adopted to describe the photoproduction process is based on chiral perturbation theory and employs a limited number of free parameters. The achieved description of the photoproduction mass distributions is not quite satisfactory, leaving a room for improving the photo-kernel construction. Although the presented models tend to constrain the positions of the Lambda(1405) poles it is difficult to draw any conclusions before accomplishing better data reproduction.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10301 - Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

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

1043

Číslo periodika v rámci svazku

MAR

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

9

Strana od-do

122819

Kód UT WoS článku

001167597600001

EID výsledku v databázi Scopus

2-s2.0-85182722077