Baryon-antibaryon threshold and ω-baryonium mixing

Gavai, R. V. (1981) Baryon-antibaryon threshold and ω-baryonium mixing Physical Review D, 24 (5). pp. 1356-1368. ISSN 0556-2821

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It is shown that in any dual-topological-unitarization model of ω-baryonium (B) mixing at the cylinder level, in which the production of baryon-antibaryon (bb- ) pairs can take place only above a certain threshold energy, the phenomenologically relevant ω and B frajectories do not mix below bb- threshold. However, their couplings to external particles do get modified. The ω-B mixing angle θω-B, which characterizes these coupling modification effects below bb- threshold at t=0, is estimated in some models. These estimates are found to agree reasonably well with the existing phenomenological bound on θω-B.

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Source:Copyright of this article belongs to American Physical Society.
ID Code:14113
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