Analysis of the 3/2± pentaquark states in the diquark-diquark-antiquark model with QCD sum rules

In this article, we construct the axialvector-diquark-scalar-diquark-antiquark type and the axialvectordiquark- axialvector-diquark-antiquark type interpolating currents, and study the J(P) = 3/2(+/-) hidden-charm pentaquark states with the strangeness S= 0, -1, -2, -3systematically using the QCD sum rules. The predicted masses of the pentaquark states P-uud(101/2) (3/2(-)), P-uud(111/2) (3/2(-)) and P-uud(113/2) (3/2(-)) are compatible with the experimental value M-Pc(4380) = 4380 +/- 8 +/- 29 MeVfrom the LHCb collaboration, more experimental data are still needed to identify the P-C(4380) unambiguously. (C) 2016 The Author. Published by Elsevier B.V.