English

Revisit the $X(4274)$ as the axialvector tetraquark state

High Energy Physics - Phenomenology 2020-02-25 v4

Abstract

In this article, we construct the [sc]A[sˉcˉ]V[sc]V[sˉcˉ]A[sc]_A[\bar{s}\bar{c}]_V-[sc]_V[\bar{s}\bar{c}]_A type tensor current to study the mass and width of the X(4274)X(4274) with the QCD sum rules in details. The predicted mass MX=(4.27±0.09)GeVM_{X}=(4.27\pm0.09) \, \rm{GeV} for the JPC=1++J^{PC}=1^{++} tetraquark state is in excellent agreement with the experimental data 4273.3 \pm 8.3 ^{+17.2}_{-3.6} \mbox MeV} from the LHCb collaboration. The central value of the width Γ(X(4274)J/ψϕ)=47.9MeV\Gamma(X(4274)\to J/\psi \phi)=47.9\,{\rm{MeV}} is in excellent agreement with the experimental data 56 \pm 11 ^{+8}_{-11} \mbox MeV}} from the LHCb collaboration. The present work supports assigning the X(4274)X(4274) to be the JPC=1++J^{PC}=1^{++} [sc]A[sˉcˉ]V[sc]V[sˉcˉ]A[sc]_A[\bar{s}\bar{c}]_V-[sc]_V[\bar{s}\bar{c}]_A tetraquark state with a relative P-wave between the diquark and antidiquark constituents. Furthermore, we obtain the mass of the [sc]A[sˉcˉ]V[sc]V[sˉcˉ]A[sc]_A[\bar{s}\bar{c}]_V-[sc]_V[\bar{s}\bar{c}]_A type tetraquark state with JPC=1+J^{PC}=1^{-+} as a byproduct.

Keywords

Cite

@article{arxiv.1812.04503,
  title  = {Revisit the $X(4274)$ as the axialvector tetraquark state},
  author = {Zhi-Gang Wang},
  journal= {arXiv preprint arXiv:1812.04503},
  year   = {2020}
}

Comments

20 pages, 5 figures. arXiv admin note: text overlap with arXiv:1811.12821