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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Stable bound states of N's, Lambda's and Xi's

Author(s):
Garcilazo, H. ; Valcarce, A. ; Vijande, J.
Total Authors: 3
Document type: Journal article
Source: REVISTA MEXICANA DE FISICA; v. 63, n. 5, p. 411-422, SEP-OCT 2017.
Web of Science Citations: 0
Abstract

We review our recent work about the stability of strange few-body systems containing N's, Lambda's, and Xi's. We make use of local central Yukawa-type Malfliet-Tjon interactions reproducing the low-energy parameters and phase shifts of the nucleon-nucleon system and the latest updates of the hyperon-nucleon and hyperon-hyperon ESCO8c Nijmegen potentials. We solve the three-and four-body bound-state problems by means of Faddeev equations and a generalized Gaussian variational method, respectively. The hypertriton, Lambda np(I)J(P) = (1/2)1/2(+), is bound by 144 keV; the recently discussed Lambda nn (I)J(P) = (1/2)1/2(+) system is unbound, as well as the Lambda Lambda nn (I)J(P) = (1)0(+) system, being just above threshold. Our results indicate that the Xi NN, Xi Xi N and Xi Xi NN systems with maximal isospin might be bound. (AU)

FAPESP's process: 15/50326-5 - Charmed hadron physics
Grantee:Gastão Inácio Krein
Support type: Regular Research Grants