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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

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

Autor(es):
Garcilazo, H. ; Valcarce, A. ; Vijande, J.
Número total de Autores: 3
Tipo de documento: Artigo Científico
Fonte: REVISTA MEXICANA DE FISICA; v. 63, n. 5, p. 411-422, SEP-OCT 2017.
Citações Web of Science: 0
Resumo

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)

Processo FAPESP: 15/50326-5 - Charmed hadron physics
Beneficiário:Gastão Inácio Krein
Linha de fomento: Auxílio à Pesquisa - Regular