Heavy Baryons and Exotics Spectrum

Details Heavy Baryons and Exotics Spectrum Heavy Baryons and Exotics Spectrum

2011-09-15

arxiv.org/abs/1109.3472v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Invited talk at Hadron 2011, the XIV International Conference on Hadron Spectroscopy, 13-17 June 2011, Munich, Germany; 8 page

Scientific paper

We discuss several highly accurate theoretical predictions for masses of baryons containing the b quark which have been recently confirmed by experimental data. Several predictions are given for additional properties of heavy baryons. We also discuss the two charged exotic resonances Z_b with quantum numbers of a (b bbar u ddbar) tetraquark, very recently reported by Belle in the channel [Upsilon(nS) \pi^+, n=1,2,3]. Among possible implications are deeply bound I=0 counterparts of the Z_b-s and existence of a Sigma_b^+ Sigma_b^- dibaryon, a "beauteron".

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