Author:
Ayala C,Cvetič G,Kotikov A V,Shaikhatdenov B G
Abstract
Abstract
We present details of study of the polarized Bjorken sum rule
Γ
1
p
−
n
(
Q
2
)
carried out recently in [1]. Four QCD coupling versions are considered: perturbative QCD (pQCD) in the
MS
¯
scheme, Analytic Perturbation Theory, and 2δ and 3δ analytic QCD
(
A
QCD
)
versions. In contrast to pQCD, these QCD variants do not have Landau singularities at low positive Q
2. In general, when 2δ and 3δ QCD coupling is used the fitted curves give the best results.
Subject
General Physics and Astronomy
Cited by
5 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献