High Precision Test of QCD at Beijing Electron Positron Collider

Ma Boqiang

Chinese Physics C> 1999, Vol. 23> Issue(9) : 922-925

High Precision Test of QCD at Beijing Electron Positron Collider

Ma Boqiang ^,

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

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Abstract：
The generalized Crewther relation relates the cross section ratio R=σ(e⁺e^－→hadrons)/σ(e⁺e^－→μ⁺μ^－) in e⁺e^－ annihilation with the Bjorken sum rule or the Gross-Llewellyn Smith sum rule in deep inelastic scattering and provides a fundamental connection for observables in Quantum Chromodynamics (QCD) without scale or scheme ambiguities. The ratio R can be measmed at the upgrated Beijing Electal Positron Collider or the τ-Charm factory with higher precision and thus can be served for a high Precision test of QCD in the standard model.

References

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Ma Boqiang. High Precision Test of QCD at Beijing Electron Positron Collider[J]. Chinese Physics C, 1999, 23(9): 922-925.

Ma Boqiang. High Precision Test of QCD at Beijing Electron Positron Collider[J]. Chinese Physics C, 1999, 23(9): 922-925. shu

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Received: 1999-02-05
Revised: 1900-01-01

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

High Precision Test of QCD at Beijing Electron Positron Collider

Corresponding author: Ma Boqiang,

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

Received Date: 1999-02-05

Accepted Date: 1900-01-01

Available Online: 1999-09-05

Abstract: The generalized Crewther relation relates the cross section ratio R=σ(e⁺e^－→hadrons)/σ(e⁺e^－→μ⁺μ^－) in e⁺e^－ annihilation with the Bjorken sum rule or the Gross-Llewellyn Smith sum rule in deep inelastic scattering and provides a fundamental connection for observables in Quantum Chromodynamics (QCD) without scale or scheme ambiguities. The ratio R can be measmed at the upgrated Beijing Electal Positron Collider or the τ-Charm factory with higher precision and thus can be served for a high Precision test of QCD in the standard model.

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High Precision Test of QCD at Beijing Electron Positron Collider

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