Study of radially excited Ds(21S0) and Ds(3P)

  • The unobserved JP=0- radial excitation Ds(21S0) is anticipated to have mass 2650 MeV (denoted as Ds(2650)). Study of hadronic production is an important way to identify highly excited states. We study hadronic production of Ds(2650) from higher excited resonances in a 3P0 model. Relevant hadronic partial decay widths are found to be very small, which implies it is difficult to observe Ds(2650) in hadronic decays of higher excited resonances. Hadronic decay widths of radially excited Ds(3P) have also been estimated. The total decay widths of four Ds(3P) are large, but the branching ratios in the Ds(2650)η channel are very small, which implies that it seems impossible to observe Ds(2650) in hadronic decays of Ds(3P). The dominant decay channels of the four Ds(3P) have been pointed out, and D1(2420), D1(2430), m D2*(2460), m D(2550), m D(2600), m (11D2)D(2750) and m D3*(2760) are possible to observe in hadronic production from Ds(3P).
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Yu Tian, Ze Zhao and Ai-Lin Zhang. Study of radially excited Ds(21S0) and Ds(3P)[J]. Chinese Physics C, 2017, 41(8): 083107. doi: 10.1088/1674-1137/41/8/083107
Yu Tian, Ze Zhao and Ai-Lin Zhang. Study of radially excited Ds(21S0) and Ds(3P)[J]. Chinese Physics C, 2017, 41(8): 083107.  doi: 10.1088/1674-1137/41/8/083107 shu
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Received: 2017-04-11
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    Supported by National Natural Science Foundation of China (11475111)

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Study of radially excited Ds(21S0) and Ds(3P)

    Corresponding author: Yu Tian,
    Corresponding author: Ze Zhao,
    Corresponding author: Ai-Lin Zhang,
  • 1. Department of Physics, Shanghai University, Shanghai 200444, China
Fund Project:  Supported by National Natural Science Foundation of China (11475111)

Abstract: The unobserved JP=0- radial excitation Ds(21S0) is anticipated to have mass 2650 MeV (denoted as Ds(2650)). Study of hadronic production is an important way to identify highly excited states. We study hadronic production of Ds(2650) from higher excited resonances in a 3P0 model. Relevant hadronic partial decay widths are found to be very small, which implies it is difficult to observe Ds(2650) in hadronic decays of higher excited resonances. Hadronic decay widths of radially excited Ds(3P) have also been estimated. The total decay widths of four Ds(3P) are large, but the branching ratios in the Ds(2650)η channel are very small, which implies that it seems impossible to observe Ds(2650) in hadronic decays of Ds(3P). The dominant decay channels of the four Ds(3P) have been pointed out, and D1(2420), D1(2430), m D2*(2460), m D(2550), m D(2600), m (11D2)D(2750) and m D3*(2760) are possible to observe in hadronic production from Ds(3P).

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