期刊
INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS
卷 59, 期 10, 页码 3124-3133出版社
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s10773-020-04566-2
关键词
Bottom baryon states; Pentaquark molecular states; QCD sum rules
资金
- National Natural Science Foundation [11775079]
In this paper, we design the Xi(b) (6227) as the pentaquark molecular states with quantum numbers J(P)=1/2(+/-) to study its inner structure. We employ the QCD sum rule approach to calculate the masses and pole residues of pentaquark molecular states by taking the vacuum condensates up to dimension 13 in the operator product expansion. In comparison with the experiment data, it is found that our calculation results support assigning the Xi(b) (6227) to be the pentaquark molecular state with quantum number J(P)=1/2(-).
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