Regular Article - Theoretical Physics
Reanalysis of X(4140) as axial-vector tetraquark state with QCD sum rules
Department of Physics, North China Electric Power University, Baoding, 071003, People’s Republic of China
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Accepted: 14 November 2016
Published online: 29 November 2016
In this article, we take X(4140) as the diquark–antidiquark type tetraquark state with , and we study the mass and pole residue with the QCD sum rules in detail by constructing two types of interpolating currents. The numerical results and disfavor assigning the X(4140) to the diquark–antidiquark type tetraquark state. Moreover, we obtain the masses of the diquark–antidiquark type tetraquark states as a byproduct. The present predictions can be confronted to the experimental data in the future.
© The Author(s), 2016