English

Reanalysis of the $X(4140)$ as axialvector tetraquark state with QCD sum rules

High Energy Physics - Phenomenology 2016-11-30 v3

Abstract

In this article, we take the X(4140)X(4140) as the diquark-antidiquark type cscˉsˉcs\bar{c}\bar{s} tetraquark state with JPC=1++J^{PC}=1^{++}, and study the mass and pole residue with the QCD sum rules in details by constructing two types interpolating currents. The numerical results MXL,+=3.95±0.09GeVM_{X_{L,+}}=3.95\pm0.09\,\rm{GeV} and MXH,+=5.00±0.10GeVM_{X_{H,+}}=5.00\pm0.10\,\rm{GeV} disfavor assigning the X(4140)X(4140) to be the JPC=1++J^{PC}=1^{++} diquark-antidiquark type cscˉsˉcs\bar{c}\bar{s} tetraquark state. Moreover, we obtain the masses of the JPC=1+J^{PC}=1^{+-} diquark-antidiquark type cscˉsˉcs\bar{c}\bar{s} tetraquark states as a byproduct. The present predictions can be confronted to the experimental data in the future.

Keywords

Cite

@article{arxiv.1607.00701,
  title  = {Reanalysis of the $X(4140)$ as axialvector tetraquark state with QCD sum rules},
  author = {Zhi-Gang Wang},
  journal= {arXiv preprint arXiv:1607.00701},
  year   = {2016}
}

Comments

20 pages, 15 figures