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Chinese Physics C> 1994, Vol. 18> Issue(12) : 1143-1146 

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

  •  Institute of High Energy Physics,Academia Sinica, Beijing 100039

  • 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+K－π+π－) and in company with f0(975)(→π+π－)by BES collaboration may be a new resonance state.
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  • References

    [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
  • Received Date: 1900-01-01
  • Accepted Date: 1900-01-01
  • Available Online: 1994-12-05

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+K－π+π－) and in company with f0(975)(→π+π－)by BES collaboration may be a new resonance state.

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