Study of the η'→Ve+e- decay with hidden local symmetry model

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YANG Yue-Ling, HUANG Jin-Shu and LU Gong-Ru. Study of the η'→Ve+e- decay with hidden local symmetry model[J]. Chinese Physics C, 2015, 39(2): 023102. doi: 10.1088/1674-1137/39/2/023102
YANG Yue-Ling, HUANG Jin-Shu and LU Gong-Ru. Study of the η'→Ve+e- decay with hidden local symmetry model[J]. Chinese Physics C, 2015, 39(2): 023102.  doi: 10.1088/1674-1137/39/2/023102 shu
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Received: 2014-04-24
Revised: 2014-05-26
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Study of the η'→Ve+e- decay with hidden local symmetry model

    Corresponding author: YANG Yue-Ling,
    Corresponding author: HUANG Jin-Shu,

Abstract: Within the hidden local symmetry framework, the Dalitz decay η'→Ve+e- is studied with the vector meson dominance model. It is found that the partial width Γ(η'→ωe+e-)≈40 eV and branching ratio B(η'→ω+e-)≈2×10-4, and Γ(η'→ρe+e-)≈10Γ(η'→ωe+e-) and B(η'→ρe+e-)≈10B(η'→ωe+e-). The maximum position of the dilepton distribution is me+e-≈1:33 MeV. These decays are measurable with the advent of high statistic η' experiments.

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