Is f0 Distinguishable from f2 by One-dimensional Projections of Angular Distributions in J/ψ→fJ→ππKK?

  • With helicity partial wave analysis formalism, we discuss how one can distinguish f-0 resonance from f2 resonance in the process of J/ψ→fJ(θ1,1) with fJ→ππ(θ2, 2) and →K(θ3, 3) by various projections of angular distributions. We find that f-0 and f2 can give the same one-dimensional angular distributions for I(θ1)∪I(1)∪I(θ2)∪I( 2), but cannot give the same I(θ1)∪I(1)∪I(θ2)∪I(2)∪I( 3). So it is necessary to consider all three decay vertices in order to distinguish f0 from f2 by one-dimensional projections of angular distributions.
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ZHANG Yong-Jun and ZOU Bing-Song. Is f0 Distinguishable from f2 by One-dimensional Projections of Angular Distributions in J/ψ→fJ→ππKK?[J]. Chinese Physics C, 2004, 28(5): 479-486.
ZHANG Yong-Jun and ZOU Bing-Song. Is f0 Distinguishable from f2 by One-dimensional Projections of Angular Distributions in J/ψ→fJ→ππKK?[J]. Chinese Physics C, 2004, 28(5): 479-486. shu
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Received: 2003-10-08
Revised: 1900-01-01
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Is f0 Distinguishable from f2 by One-dimensional Projections of Angular Distributions in J/ψ→fJ→ππKK?

    Corresponding author: ZHANG Yong-Jun,
  • Institute of High Energy Physics,CAS,Beijing 100039,China2 Department of Basic Science,Liaoning Technical University,Liaoning 123000,China

Abstract: With helicity partial wave analysis formalism, we discuss how one can distinguish f-0 resonance from f2 resonance in the process of J/ψ→fJ(θ1,1) with fJ→ππ(θ2, 2) and →K(θ3, 3) by various projections of angular distributions. We find that f-0 and f2 can give the same one-dimensional angular distributions for I(θ1)∪I(1)∪I(θ2)∪I( 2), but cannot give the same I(θ1)∪I(1)∪I(θ2)∪I(2)∪I( 3). So it is necessary to consider all three decay vertices in order to distinguish f0 from f2 by one-dimensional projections of angular distributions.

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