Determination of QCD running coupling constant in NNLO approximation, using complete RG improvement

被引：0

作者：

Mirjalili, A ^{[1
]}

Khorramian, AN

Tehrani, SA

机构：

[1] Yazd Univ, Dept Phys, Yazd, Iran

[2] Inst Studies Theoret Phys & Math, Tehran, Iran

[3] Semnan Univ, Dept Phys, Inst Studies Theoret Phys & Math, Semnan, Iran

[4] Persian Gulf Univ, Dept Phys, Boushehr, Iran

[5] Inst Studies Theoret Phys & Math, Tehran, Iran

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS A | 2005年 / 20卷 / 8-9期

关键词：

moments of structure functions; Bernstein averages; CORGI approach;

D O I：

10.1142/S0217751X05023724

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

To obtain the improved QCD predictions for the moments of the xF(3) structure function in vN scattering, three-loop Wilson coefficients with the corresponding NNLO anomalous dimension coefficients is used. A comparison between QCD predictions and the xF3 data of the CCFR collaboration has been done in which the Bernstein Polynomial method is used in the complete renormalization group improvement approach. A direct fits for Lambda(MS) over bar over the corresponding range of Q(2) with five effective quark flavours, is performed.

引用

页码：1955 / 1958

页数：4

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