Experimental Study of f<SUB>0</SUB> (975) in the J/ψ Decays

BES Collaboration

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2024年10月30日

Chinese Physics C> 1995, Vol. 19> Issue(4) : 289-295

Experimental Study of f₀ (975) in the J/ψ Decays

BES Collaboration

Institute of High Energy Physics, The Chinese Academy of Sciences, Beijing 100039

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Abstract：
Based on 7.8×10⁶ J/ψ events collected by the BES at BEPC, through study of the hadronic decays J/ψ→φπ⁺π^－ and J/ψ→ωπ⁺π^－, the branching ratios of the processes and the mass positions and the widths of f0 are obtained. The angular distributions of J/ψ→φf₀,f₀→π⁺π^－, are fitted and the helicity amplitude ratio of this process is first given.

References

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S.D.Protopopescuetal.,Phys.Rev.,D7（1973）1279.[2]G.Gidaletal,Phys.Lett,107B（1981）153.[3]A.Falvardetal,Phys Rev.,D38（1988）2706.[4]L.Williametal.,Proceedings of Hadron89,p.109.[5]D.Morgan,Phys Lett.,51B（1974）71.[6]R.J.Jaffe,Phys.Rev,D15（1977）267.[7]J.Weisteinetal.,Phys.Rev.,D27（1983）588;D41（1990）2236.[8]S.M.Flatte.Phys.Lett,63B（1976）224.[9]郁宏、沈齐兴，高能物理与核物理，14（1990）504.[10]白景芝等，高能物理与核物理，17（1993）97.[11]G.Eigen,CALT-68-1483（1987）p.78,p.81.

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BES Collaboration. Experimental Study of f₀ (975) in the J/ψ Decays[J]. Chinese Physics C, 1995, 19(4): 289-295.

BES Collaboration. Experimental Study of f₀ (975) in the J/ψ Decays[J]. Chinese Physics C, 1995, 19(4): 289-295. shu

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Received: 1900-01-01
Revised: 1900-01-01

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Experimental Study of f₀ (975) in the J/ψ Decays

BES Collaboration

Institute of High Energy Physics, The Chinese Academy of Sciences, Beijing 100039

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1995-04-05

Abstract: Based on 7.8×10⁶ J/ψ events collected by the BES at BEPC, through study of the hadronic decays J/ψ→φπ⁺π^－ and J/ψ→ωπ⁺π^－, the branching ratios of the processes and the mass positions and the widths of f0 are obtained. The angular distributions of J/ψ→φf₀,f₀→π⁺π^－, are fitted and the helicity amplitude ratio of this process is first given.