期刊
EUROPEAN PHYSICAL JOURNAL C
卷 79, 期 5, 页码 -出版社
SPRINGER
DOI: 10.1140/epjc/s10052-019-6906-1
关键词
-
资金
- National Natural Science Foundation of China [11675228]
Very recently, the LHCb Collaboration reported their new results about the pentaquarks at charm energy region. Based on the newexperimental results, we recalculate the molecular states composed of a S (*) c baryon and a D (*) meson in a quasipotentialBethe- Salpeter equation approach. The two- peak structure around 4450 MeV can be interpreted as two Sc D * bound states with spin parities 1/ 2 - and 3/ 2 -. The newly observed pentaquark Pc( 4312) can be assigned as a Sc D bound state with spin parity 1/ 2 -. The experimental determination of spin parities will be very helpful to understand the internal structure of these pentaquarks.
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