Consequences of heavy-quark symmetries for hadronic molecules

Among the newly observed structures in the heavy-quarkonium mass region, some have been proposed to be hadronic molecules. We investigate the consequences of heavy-quark flavor symmetry on these heavy meson hadronic molecules. The symmetry allows us to predict new hadronic molecules on one hand, and...

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Veröffentlicht in:Physical review. D 2013-09, Vol.88 (5), Article 054007
Hauptverfasser: Guo, Feng-Kun, Hidalgo-Duque, Carlos, Nieves, Juan, Pavón Valderrama, Manuel
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Sprache:eng
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Zusammenfassung:Among the newly observed structures in the heavy-quarkonium mass region, some have been proposed to be hadronic molecules. We investigate the consequences of heavy-quark flavor symmetry on these heavy meson hadronic molecules. The symmetry allows us to predict new hadronic molecules on one hand, and test the hadronic molecular assumption of the observed structures on the other hand. We explore the consequences of the flavor symmetry assuming the X(3872) and Zb(10610) as an isoscalar DD* and isovector BB* hadronic molecule, respectively. A series of hadronic molecules composed of heavy mesons are predicted. In particular, there is an isoscalar 1 super(++) BB* bound state with a mass about 10 580 MeV which may be searched for in the [Upsilon](1S, 2S)[pi] super(+)[pi] super(-)[pi] super(0) mass distribution; the isovector charmonium partners of the Zb(10610) and the Zb(10650) are also predicted, which probably corresponds to the very recently observed Zc(3900) and Zc(4025) resonances by the BESIII Collaboration.
ISSN:1550-7998
2470-0010
1550-2368
2470-0029
DOI:10.1103/PhysRevD.88.054007