Faddeev calculations of the (K)over-bar N N system with a chirally motivated (K)over-bar N interaction. II. The K- pp quasibound state

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F14%3A00433909" target="_blank" >RIV/61389005:_____/14:00433909 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1103/PhysRevC.90.034004" target="_blank" >http://dx.doi.org/10.1103/PhysRevC.90.034004</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevC.90.034004" target="_blank" >10.1103/PhysRevC.90.034004</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Faddeev calculations of the (K)over-bar N N system with a chirally motivated (K)over-bar N interaction. II. The K- pp quasibound state

Popis výsledku v původním jazyce

Newcalculations of the quasibound state in the K- pp system using Faddeev-type equations in Alt-Grassberger-Sandhas (AGS) form with coupled (K) over bar N N and pi Sigma N channels were performed. Achirally motivated (K) over bar N potential together with phenomenological models of (K) over bar N interaction with one- and two-pole structure of the Lambda (1405) resonance were used. All three potentials reproduce experimental data on low-energy K- p scattering and kaonic hydrogen with the same level of accuracy. A new method of calculating the subthreshold resonance position and width in a three-body system was proposed and used together with the direct search of the resonance pole. We obtained binding energy of the K(-)pp quasibound state approximate to 32 MeV with the chirally motivated and 47-54MeV with the phenomenological (K) over bar N potentials. The width is about 50 MeV for the two-pole models of the interaction, while the one-pole potential gives approximate to 65 MeV width. T

Název v anglickém jazyce

Faddeev calculations of the (K)over-bar N N system with a chirally motivated (K)over-bar N interaction. II. The K- pp quasibound state

Popis výsledku anglicky

Newcalculations of the quasibound state in the K- pp system using Faddeev-type equations in Alt-Grassberger-Sandhas (AGS) form with coupled (K) over bar N N and pi Sigma N channels were performed. Achirally motivated (K) over bar N potential together with phenomenological models of (K) over bar N interaction with one- and two-pole structure of the Lambda (1405) resonance were used. All three potentials reproduce experimental data on low-energy K- p scattering and kaonic hydrogen with the same level of accuracy. A new method of calculating the subthreshold resonance position and width in a three-body system was proposed and used together with the direct search of the resonance pole. We obtained binding energy of the K(-)pp quasibound state approximate to 32 MeV with the chirally motivated and 47-54MeV with the phenomenological (K) over bar N potentials. The width is about 50 MeV for the two-pole models of the interaction, while the one-pole potential gives approximate to 65 MeV width. T

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BE - Teoretická fyzika

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

Physical Review. C

ISSN

0556-2813

e-ISSN

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Svazek periodika

90

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

6

Strana od-do

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Kód UT WoS článku

000342499500002

EID výsledku v databázi Scopus

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