Chinese Physics C > 2002, Vol. 26 > Issue(2): 93-99

Decay of the J/ψ to Σ⁰Σ⁰Final State

BES Callaboration^,

Institute of High Energy Physics, CAS, Beijing 100039, China

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With 7.8 million produced J/ψ events collected by the BES detector at the BEPC, the decay J/ψ→Σ ⁰Σ ⁰is analysed. The branching ratio is measured to be BR(J/ψ→Σ ⁰Σ ⁰)=(0.97±0.04±0.24)×10 ^－3. The angular distribution is of the form dN dcosθ=N ₀(1+α cos ²θ) with α value of －0.21±0.27±0.13.

References

[1]

. Kessler P. Nucl. Phys., 1970, B15: 2532. Claudson M, Glashow S L, Wise M B. Phys. Rev., 1982, D25: 13453. Carimalo C. Int. J. Mod. Phys., 1987, A2: 249 4. Peruzzi I et al. Phys. Rev., 1978, D17: 2901 5. Cords D. DESY 78/32(1978)6. Eaton M W et al. Phys. Rev., 1984, D29: 804 7. Pallin D et al. Nucl. Phys., 1987, B292: 6538. BAI J Z, BIAN J G et al. Phys. Lett., 1998, B424: 2139. BAI J Z et al. Nucl. Inst. Meth., 1994, A344: 319 10. DING Hui-Liang et al. HEP NP, 1992, 16: 769(in Chinese)(丁慧良等. 高能物理与核物理, 1992, 16: 769)11. Particle Data Group. Eur. Phys. J., 2000, C15: 1

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BES Callaboration. Decay of the J/ψ to Σ ⁰Σ ⁰Final State[J]. Chinese Physics C, 2002, 26(2): 93-99.

BES Callaboration. Decay of the J/ψ to Σ ⁰Σ ⁰Final State[J]. Chinese Physics C, 2002, 26(2): 93-99. shu

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Received: 2001-09-19
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Decay of the J/ψ to Σ⁰Σ⁰Final State

BES Callaboration^,

Corresponding author:BES Callaboration,

Institute of High Energy Physics, CAS, Beijing 100039, China

Received Date:2001-09-19
Accepted Date:1900-01-01
Available Online:2002-02-05

Abstract:With 7.8 million produced J/ψ events collected by the BES detector at the BEPC, the decay J/ψ→Σ⁰Σ⁰is analysed. The branching ratio is measured to be BR(J/ψ→Σ⁰Σ⁰)=(0.97±0.04±0.24)×10^－3. The angular distribution is of the form dN dcosθ=N₀(1+α cos²θ) with α value of －0.21±0.27±0.13.