The NLO DGLAP extraction of αs and higher twist terms from CCFR xF3 and F2 structure functions:: results and scale dependence

被引：10

作者：

Alekhin, SI ^{[1
]}

Kataev, AL

机构：

[1] Protvino High Energy Phys Inst, Protvino 142284, Russia

[2] Russian Acad Sci, Inst Nucl Res, Moscow 117312, Russia

来源：

NUCLEAR PHYSICS A | 2000年 / 666卷

关键词：

D O I：

10.1016/S0375-9474(00)00026-9

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：

We perform a detailed NLO analysis of the combined CCFR xF(3) and F-2 structure functions data and extract the value of alpha(s), parameters of distributions and higher-twist (HT) terms using a direct solution of the DGLAP equation. The value of alpha(s)(M-Z) = 0.1222 +/- 0.0048(exp) +/- 0.0026(theor) is obtained. Our result has a larger central value and errors than the original one of the CCFR collaboration due to model independent parametrization of the HT contributions. The dependence of HT contributions on the QCD renormalization scale is studied.

引用

页码：179C / 183C

页数：5

共 33 条

[1]

AKHOURY R, 1997, NUCL PHYS P S A, V54, P217

[2] The NLO DGLAP extraction of αs and higher twist terms from CCFR xF3 and F2 structure functions data for νN DIS [J].

Alekhin, SI ;

Kataev, AL .

PHYSICS LETTERS B, 1999, 452 (3-4) :402-408

[3]

Alekhin SI, 1999, PHYS REV D, V59, DOI 10.1103/PhysRevD.59.114016

[4]

ALEKHIN SI, IN PRESS EUR PHYS J

[5]

ALEKHIN SI, 1999, P 24 MORI C QCD HIGH

[6] NAIVE NONABELIANIZATION AND RESUMMATION OF FERMION BUBBLE CHAINS [J].

BENEKE, M ;

BRAUN, VM .

PHYSICS LETTERS B, 1995, 348 (3-4) :513-520

[7]

BENEKE M, CERNTH98233

[8] DECOUPLING OF HEAVY QUARKS IN THE MINIMAL SUBTRACTION SCHEME [J].

BERNREUTHER, W ;

WETZEL, W .

NUCLEAR PHYSICS B, 1982, 197 (02) :228-236

[9] Decoupling of heavy quarks in minimal subtraction scheme (vol 197, pg 228, 1982) [J].

Bernreuther, W ;

Wetzel, W .

NUCLEAR PHYSICS B, 1998, 513 (03) :758-758

[10] Heavy flavour contributions to the deep inelastic scattering sum rules [J].

Blümlein, J ;

van Neerven, WL .

PHYSICS LETTERS B, 1999, 450 (04) :417-426

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