Journal
PHYSICAL REVIEW C
Volume 85, Issue 4, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.85.044002
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Funding
- National Natural Science Foundation of China [10875133, 10821063, 11035006]
- Chinese Academy of Sciences [KJCX2-EW-N01]
- Ministry of Science and Technology of China [2009CB825200]
- US Department of Energy, Office of Nuclear Physics Division [DE-AC02-06CH11357]
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The model dependence of the predictions of nucleon resonances with hidden charm is investigated. We consider several coupled-channel models which are derived from relativistic quantum field theory by using (1) a unitary transformation method and (2) the three-dimensional reductions of the Bethe-Salpeter equation. With the same vector-meson exchange mechanism, we find that all models give very narrow molecularlike nucleon resonances with hidden charm in the mass range of 4.3 < M-R < 4.5 GeV, consistent with the previous predictions.
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