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  • Letter
  • Open Access

New hadron configuration: The double-gluon hybrid state

Hua-Xing Chen1,*, Wei Chen2,†, and Shi-Lin Zhu3,‡

  • 1School of Physics, Southeast University, Nanjing 210094, China
  • 2School of Physics, Sun Yat-Sen University, Guangzhou 510275, China
  • 3School of Physics and Center of High Energy Physics, Peking University, Beijing 100871, China

  • *hxchen@seu.edu.cn
  • †chenwei29@mail.sysu.edu.cn
  • ‡zhusl@pku.edu.cn
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Phys. Rev. D 105, L051501 – Published 3 March, 2022

DOI: https://doi.org/10.1103/PhysRevD.105.L051501

Abstract

This is the first study on the double-gluon hybrid, which consists of one valence quark and one valence antiquark together with two valence gluons. We concentrate on the one with the exotic quantum number JPC=2+− that conventional q¯q mesons cannot reach. We apply the QCD sum rule method to evaluate its mass to be 2.26−0.25+0.20  GeV, and study its possible decay patterns. Especially, its three-meson decay patterns are generally not suppressed severely compared to two-meson decay patterns, so the S-wave three-meson decay channels f1ωπ/f1ρπ can be useful in identifying its nature, which is of particular importance to the direct test of QCD in the low energy sector.

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Phys. Rev. D 105, L051501– Published 3 March, 2022
  • Received 11 November 2021
  • Accepted 15 February 2022
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