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

Result code in 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>

Result on the web

<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>

Result language

angličtina

Original language name

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

Original language description

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

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BE - Theoretical physics

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2014

Confidentiality

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

Name of the periodical

Physical Review. C

ISSN

0556-2813

e-ISSN

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Volume of the periodical

90

Issue of the periodical within the volume

3

Country of publishing house

US - UNITED STATES

Number of pages

6

Pages from-to

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UT code for WoS article

000342499500002

EID of the result in the Scopus database

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