A Possible New Resonance State──Spin-Parity Analysis of the X Resonance in J/ψ→X+f0 (975) Process

  • The boson resonance state X is produced in company with f0(975)in the J/ψ hadronic decay process.If the X particle decays into a pair of pseudoscalar mesons its spin-parity is Jpc=(odd)--.The helicity formalism of angular distribution of the process has been given. How to discriminate 1-- meson from 3-- meson for the X particle has been discussed. We think that the X1(1573) which has been observed in the four prong channel(K+Kπ+π) and in company with f0(975)(→π+π)by BES collaboration may be a new resonance state.
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  • [1] G.Gidal et al,Phys.Lett.107B(1981)153.[2]Particle Data Group,Phys.Rev,D45(1992)I.1-XI.8.[3]祝玉灿,内部报告。[4]郁宏、沈齐兴,高能物理与核物理,14(199)504.
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Yu Hong and Shen Qixing. A Possible New Resonance State──Spin-Parity Analysis of the X Resonance in J/ψ→X+f0 (975) Process[J]. Chinese Physics C, 1994, 18(12): 1143-1146.
Yu Hong and Shen Qixing. A Possible New Resonance State──Spin-Parity Analysis of the X Resonance in J/ψ→X+f0 (975) Process[J]. Chinese Physics C, 1994, 18(12): 1143-1146. shu
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Received: 1900-01-01
Revised: 1900-01-01
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A Possible New Resonance State──Spin-Parity Analysis of the X Resonance in J/ψ→X+f0 (975) Process

    Corresponding author: Yu Hong,
  • Institute of High Energy Physics,Academia Sinica, Beijing 100039

Abstract: The boson resonance state X is produced in company with f0(975)in the J/ψ hadronic decay process.If the X particle decays into a pair of pseudoscalar mesons its spin-parity is Jpc=(odd)--.The helicity formalism of angular distribution of the process has been given. How to discriminate 1-- meson from 3-- meson for the X particle has been discussed. We think that the X1(1573) which has been observed in the four prong channel(K+Kπ+π) and in company with f0(975)(→π+π)by BES collaboration may be a new resonance state.

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