Moment Analysis and ξ (2220)

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Yu Hong and Shen Qixing. Moment Analysis and ξ (2220)[J]. Chinese Physics C, 1993, 17(S3): 249-254.
Yu Hong and Shen Qixing. Moment Analysis and ξ (2220)[J]. Chinese Physics C, 1993, 17(S3): 249-254. shu
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Received: 1992-10-19
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Moment Analysis and ξ (2220)

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

Abstract: In order to reduce the influence of the geometrical acceptance and improve the precision we introduce the pseudoscalar meson angular distribution of moment HJ(jm, θ). It is more sensitive than the usual projective pseudoscalar meson angular distribution WJ(θ) in determining whether the spin of the ξ(2220) is 2 or 4. We also give some moments required by the moment analysis and helicity amplitude ratios XJ and yJ represented directly by some relations of moments.

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