TY  - JOUR
AU  - Garcilazo, H.
AU  - Valcarce, A.
AU  - Vijande, J.
PY  - 2017
DA  - 2017//
TI  - Stable bound states of N's, Lambda's and Xi's
T2  - Rev. Mex. Fis.
JO  - Revista Mexicana de Fisica
SP  - 411
EP  - 422
VL  - 63
IS  - 5
PB  - Soc Mexicana Fisica
KW  - Baryon-Baryon interactions
KW  - Faddeev equations
KW  - variational approaches
AB  - 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.
SN  - 0035-001x
UR  - http://rmf.smf.mx/pdf/rmf/63/5/63_5_411.pdf
LA  - English
N1  - WOS:000410015700003
ID  - Garcilazo_etal2017
ER  -