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

ZHANG Yong-Jun; ZOU Bing-Song

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2024年10月30日

Chinese Physics C> 2004, Vol. 28> Issue(5) : 479-486

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

ZHANG Yong-Jun ^, ,
ZOU Bing-Song

Institute of High Energy Physics,CAS,Beijing 100039,China2 Department of Basic Science,Liaoning Technical University,Liaoning 123000,China

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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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ZHANG Yong-Jun and ZOU Bing-Song. Is f₀ Distinguishable from f₂ by One-dimensional Projections of Angular Distributions in J/ψ→f_{J_→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→f_{J_→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→f_{J_→ππKK?}

ZHANG Yong-Jun ^,
ZOU Bing-Song

Corresponding author: ZHANG Yong-Jun,

Institute of High Energy Physics,CAS,Beijing 100039,China2 Department of Basic Science,Liaoning Technical University,Liaoning 123000,China

Received Date: 2003-10-08
Accepted Date: 1900-01-01
Available Online: 2004-05-05

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.