Effective one-boson-exchange potential for Lambda N and Sigma N systems and hypertriton

Citation
K. Tominaga et T. Ueda, Effective one-boson-exchange potential for Lambda N and Sigma N systems and hypertriton, NUCL PHYS A, 693(3-4), 2001, pp. 731-754
Citations number
36
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
NUCLEAR PHYSICS A
ISSN journal
0375-9474 → ACNP
Volume
693
Issue
3-4
Year of publication
2001
Pages
731 - 754
Database
ISI
SICI code
0375-9474(20011022)693:3-4<731:EOPFLN>2.0.ZU;2-A
Abstract
Ehime OBEP for LambdaN and SigmaN coupled systems is presented which uses t he SU(3) invariant framework for pseudoscalar, scalar and vector nonet meso ns and also uses additional elements: a, kappa, Omega and P. Those elements violate the SU(3) invariance. sigma and kappa represent effective scalar m esons which embody the (pi pi)(I=0) and (K pi)(I=1/2) correlations, while O mega and P do effective multimeson states with the quantum numbers of omega and rho mesons, respectively. The data for AN and EN observables as well a s hypertriton binding energy are reproduced. The Ehime results are compared with the Nijmegen (SC97f) ones and discriminating points are discussed. (C ) 2001 Elsevier Science B.V. All rights reserved.