Absence of exotic hadrons in flux-tube quark models
- 1 March 1991
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 43 (5) , 1652-1658
- https://doi.org/10.1103/physrevd.43.1652
Abstract
Flux-tube quark models based upon strong-coupling QCD are studied in the limit of small coupling between different flux-tube topologies. In this limit, it is shown that no bound exotic states exist, in contrast with predictions made with bag and other mean-field and two-body potential quark models. Results are presented for the 2q-2q¯, 4q-q¯, and 6q sectors, and the various quark models are compared. The extent to which ‘‘exotic’’ states are observed experimentally can be regarded to some degree as a test of the relevance of strong-coupling-based flux-tube models.Keywords
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