Strong decay patterns of the 1{sup -+} exotic hybrid mesons

doi:https://doi.org/10.1103/PHYSREVD.83.014021

Title: Strong decay patterns of the 1{sup -+} exotic hybrid mesons

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Abstract

We calculate the coupling constants of the decay modes 1{sup -+}{yields}{rho}{pi}, f{sub 1}{pi}, b{sub 1}{pi}, {eta}{pi}, {eta}{sup '}{pi}, a{sub 1}{pi}, f{sub 1}{eta} within the framework of the light-cone QCD sum rule. Then we calculate the partial width of these decay channels, which differ greatly from the existing calculations using phenomenological models. For the isovector 1{sup -+} state, the dominant decay modes are {rho}{pi}, f{sub 1}{pi}. For its isoscalar partner, its dominant decay mode is a{sub 1}{pi}. We also discuss the possible search of the 1{sup -+} state at BESIII, for example through the decay chains J/{psi}({psi}{sup '}){yields}{pi}{sub 1}+{gamma} or J/{psi}({psi}{sup '}){yields}{pi}{sub 1}+{rho}, where {pi}{sub 1} can be reconstructed through the decay modes {pi}{sub 1}{yields}{rho}{pi}{yields}{pi}{sup +}{pi}{sup -}{pi}{sup 0} or {pi}{sub 1}{yields}f{sub 1}(1285){pi}{sup 0}. Hopefully the present work will be helpful to the experimental establishment of the 1{sup -+} hybrid meson.

Authors:

Pengzhi, Huang; Huaxing, Chen; Shilin, Zhu ^[1]

Department of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871 (China)

Publication Date:: 2011-01-01

OSTI Identifier:: 21503879

Resource Type:: Journal Article

Journal Name:: Physical Review. D, Particles Fields

Additional Journal Information:: Journal Volume: 83; Journal Issue: 1; Other Information: DOI: 10.1103/PhysRevD.83.014021; (c) 2011 American Institute of Physics; Journal ID: ISSN 0556-2821

Country of Publication:: United States

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; COUPLING CONSTANTS; ISOVECTORS; J PSI-3097 MESONS; LIGHT CONE; PARTICLE DECAY; PIONS MINUS; PIONS NEUTRAL; QUANTUM CHROMODYNAMICS; SIMULATION; SUM RULES; BOSONS; CHARMONIUM; DECAY; ELEMENTARY PARTICLES; EQUATIONS; FIELD THEORIES; HADRONS; MESONS; PIONS; PSEUDOSCALAR MESONS; QUANTUM FIELD THEORY; QUARKONIUM; SPACE-TIME; TENSORS; VECTOR MESONS; VECTORS

Citation Formats


                    Pengzhi, Huang, Huaxing, Chen, Shilin, Zhu, and Department of Physics and State Key Laboratory of Nuclear Physics and Technology and Center of High Energy Physics, Peking University, Beijing 100871. Strong decay patterns of the 1{sup -+} exotic hybrid mesons.  United States: N. p., 2011. 
        Web.  doi:10.1103/PHYSREVD.83.014021.

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                    Pengzhi, Huang, Huaxing, Chen, Shilin, Zhu, & Department of Physics and State Key Laboratory of Nuclear Physics and Technology and Center of High Energy Physics, Peking University, Beijing 100871. Strong decay patterns of the 1{sup -+} exotic hybrid mesons.  United States.  https://doi.org/10.1103/PHYSREVD.83.014021

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                    Pengzhi, Huang, Huaxing, Chen, Shilin, Zhu, and Department of Physics and State Key Laboratory of Nuclear Physics and Technology and Center of High Energy Physics, Peking University, Beijing 100871. Sat .  
        "Strong decay patterns of the 1{sup -+} exotic hybrid mesons".  United States.  https://doi.org/10.1103/PHYSREVD.83.014021.

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@article{osti_21503879,

  title        = {Strong decay patterns of the 1{sup -+} exotic hybrid mesons},

  author       = {Pengzhi, Huang and Huaxing, Chen and Shilin, Zhu and Department of Physics and State Key Laboratory of Nuclear Physics and Technology and Center of High Energy Physics, Peking University, Beijing 100871},

  abstractNote = {We calculate the coupling constants of the decay modes 1{sup -+}{yields}{rho}{pi}, f{sub 1}{pi}, b{sub 1}{pi}, {eta}{pi}, {eta}{sup '}{pi}, a{sub 1}{pi}, f{sub 1}{eta} within the framework of the light-cone QCD sum rule. Then we calculate the partial width of these decay channels, which differ greatly from the existing calculations using phenomenological models. For the isovector 1{sup -+} state, the dominant decay modes are {rho}{pi}, f{sub 1}{pi}. For its isoscalar partner, its dominant decay mode is a{sub 1}{pi}. We also discuss the possible search of the 1{sup -+} state at BESIII, for example through the decay chains J/{psi}({psi}{sup '}){yields}{pi}{sub 1}+{gamma} or J/{psi}({psi}{sup '}){yields}{pi}{sub 1}+{rho}, where {pi}{sub 1} can be reconstructed through the decay modes {pi}{sub 1}{yields}{rho}{pi}{yields}{pi}{sup +}{pi}{sup -}{pi}{sup 0} or {pi}{sub 1}{yields}f{sub 1}(1285){pi}{sup 0}. Hopefully the present work will be helpful to the experimental establishment of the 1{sup -+} hybrid meson.},

  doi          = {10.1103/PHYSREVD.83.014021},

  url          = {https://www.osti.gov/biblio/21503879},
  journal      = {Physical Review. D, Particles Fields},

  issn         = {0556-2821},

  number       = 1,

  volume       = 83,

  place        = {United States},

  year         = {2011},

  month        = {1}

}

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