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Abstract
Based on the fact that the long expected pentaquark which possesses the exotic quantum numbers of and was not experimentally found, although exotic states of have been observed recently, we conjecture that the heavy flavors may play an important role in stabilizing the hadronic structures beyond the traditional and composites.
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Details
1 Nankai University, School of Physics, Tianjin, China (GRID:grid.216938.7) (ISNI:0000000098787032)
2 Lanzhou University, School of Physical Science and Technology, Lanzhou, China (GRID:grid.32566.34) (ISNI:0000000085710482); Lanzhou University and Institute of Modern Physics of CAS, Research Center for Hadron and CSR Physics, Lanzhou, China (GRID:grid.450259.f) (ISNI:0000000418042516)