Journal
EUROPEAN PHYSICAL JOURNAL C
Volume 76, Issue 1, Pages -Publisher
SPRINGER
DOI: 10.1140/epjc/s10052-016-3880-8
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Funding
- National Natural Science Foundation [11375063, 11235005]
- Natural Science Foundation of Hebei province [A2014502017]
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In this article, we present the scalar-diquark-scalar-diquark-antiquark type and scalar-diquark-axial-vector-diquark-antiquark type pentaquark configurations in the diquark model, and study the masses and pole residues of the J(P) = 1/2(+/-) hidden-charm pentaquark states in detail with the QCD sum rules by extending our previous work on the J(P) = 3/2(-) and 5/2(+) hidden-charm pentaquark states. We calculate the contributions of the vacuum condensates up to dimension-10 in the operator product expansion by constructing both the scalar-diquark-scalar-diquark-antiquark type and the scalar-diquark-axialvector-diquark-antiquark type interpolating currents. The present predictions of the masses can be confronted to the LHCb experimental data in the future.
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