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Chinese Physics C> 1995, Vol. 19> Issue(S1) : 27-30 

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

  •  Institute of High Energy Physics, The Chinese Academy of Sciences, Beijing, China

  • The boson resonance state X is produced along 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 is presented. How to discriminate 1-- meson from 3-- meson for the X particle is 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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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, 1995, 19(S1): 27-30.
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, 1995, 19(S1): 27-30. shu
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Received: 1994-02-04
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    Supported by the National Natural Science Foundation of China and the Chinese Academy of Sciences.

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

  • Institute of High Energy Physics, The Chinese Academy of Sciences, Beijing, China
  • Received Date: 1994-02-04
Fund Project:  Supported by the National Natural Science Foundation of China and the Chinese Academy of Sciences.

Abstract: The boson resonance state X is produced along 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 is presented. How to discriminate 1-- meson from 3-- meson for the X particle is 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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