DIBARYONS AS AXIALLY-SYMMETRICAL SKYRMIONS

Citation
Gl. Thomas et al., DIBARYONS AS AXIALLY-SYMMETRICAL SKYRMIONS, Nuclear physics. A, 575(4), 1994, pp. 623-644
Citations number
29
Categorie Soggetti
Physics, Nuclear
Journal title
ISSN journal
03759474
Volume
575
Issue
4
Year of publication
1994
Pages
623 - 644
Database
ISI
SICI code
0375-9474(1994)575:4<623:DAAS>2.0.ZU;2-R
Abstract
Dibaryon configurations are studied in the framework of the bound-stat e soliton model. A generalized axially symmetric ansatz is used to det ermine the soliton background. We show that once the constraints impos ed by the symmetries of the lowest-energy torus configuration are sati sfied, all spurious states are removed from the dibaryon spectrum. In particular, we show that the lowest allowed state in the S = -2 channe l carries the quantum numbers of the H-particle. We find that, within our approximations, this particle is slightly bound in the model. We d iscuss, however, that vacuum effects neglected in the present calculat ion are very likely to unbind the H.