Exotic Charmonium and Bottomonium-like Resonances

Many new states in the charmonium and bottomonium mass region were recently discovered by the BaBar, Belle and CDF Collaborations. We use the QCD Sum Rule approach to study the possible structure of some of these states. In particular we identify the recently observed bottomonium-like resonance Z+b(...

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Bibliographic Details
Published in:Journal of physics. Conference series 2012-03, Vol.348 (1), p.12007-5
Main Authors: Navarra, Fernando S, Nielsen, Marina, Richard, Jean-Marc
Format: Article
Language:English
Subjects:
Analogue
Charm (particle physics)
Excitation
Physics
Quantum chromodynamics
Sum rules
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Summary:Many new states in the charmonium and bottomonium mass region were recently discovered by the BaBar, Belle and CDF Collaborations. We use the QCD Sum Rule approach to study the possible structure of some of these states. In particular we identify the recently observed bottomonium-like resonance Z+b(10610) with the first excitation of the tetraquark Xb(1++), the analogue of the X(3872) state in the charm sector.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/348/1/012007