A Possible New Resonance State: Spin-parity Analysis of the X Resonance in J/<i>ψ</i>→X+f<sub>0</sub>(975) Process

Yu Hong; Shen Qixing

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

Yu Hong ,
Shen Qixing

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

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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 J^PC=(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.
- resonance ,
- exclusive reaction ,
- helicity

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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

Yu Hong
Shen Qixing

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