Chinese Physics C > 2010, Vol. 34 > Issue(9): 1485-1487 DOI: 10.1088/1674-1137/34/9/079

Determination of the strong coupling constant using available experimental data

Atashbar Tehrani^,

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Abstract：

We determine the strong coupling constantα_sup to 4-loop in perturbative QCD. Testing QCD requires the measurement ofα_sover ranges of energy scales. In this analysis, the value ofα_sis determined from the unpolarized structure functions data points by minimizing the χ²function between the theory result and experimental data. Using perturbative QCD calculations from threshold corrections, we obtainα_s(M_Z²)=0.1139±0.0020 atN³LO which is in good agreement with the very recently results from the inclusive jet cross section in pp collisions at √s=1.96 TeV.

References

[1]

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Atashbar Tehrani. Determination of the strong coupling constant using available experimental data[J]. Chinese Physics C, 2010, 34(9): 1485-1487. doi: 10.1088/1674-1137/34/9/079

Atashbar Tehrani. Determination of the strong coupling constant using available experimental data[J]. Chinese Physics C, 2010, 34(9): 1485-1487. doi:10.1088/1674-1137/34/9/079 shu

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Received: 2010-02-08
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

Determination of the strong coupling constant using available experimental data

Corresponding author:Atashbar Tehrani,

Received Date:2010-02-08

Accepted Date:1900-01-01

Available Online:2010-09-05

Abstract:

We determine the strong coupling constantα_sup to 4-loop in perturbative QCD. Testing QCD requires the measurement ofα_sover ranges of energy scales. In this analysis, the value ofα_sis determined from the unpolarized structure functions data points by minimizing the χ²function between the theory result and experimental data. Using perturbative QCD calculations from threshold corrections, we obtainα_s(M_Z²)=0.1139±0.0020 atN³LO which is in good agreement with the very recently results from the inclusive jet cross section in pp collisions at √s=1.96 TeV.

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Determination of the strong coupling constant using available experimental data

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