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

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Abstract：
The boson resonance state X is produced along with f ₀(975) in the J/ ψhadronic 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 X ₁(1573) which has been observed in the four prong channel (K ⁺K ^-π ⁺π ^-) and in company with f ₀(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+f ₀(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+f ₀(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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