On Bjorken Sum Rule with Analytic Coupling at Low Q2 Values

被引：0

作者：

Gabdrakhmanov, I. R. ^{[1
]}

Gramotkov, N. A. ^{[1
,2
]}

Kotikov, A. V. ^{[1
]}

Volkova, D. A. ^{[1
,3
]}

Zemlyakov, I. A. ^{[1
,4
]}

机构：

[1] Joint Inst Nucl Res, Dubna, Russia

[2] Moscow State Univ, Moscow, Russia

[3] Dubna State Univ, Dubna, Moscow, Russia

[4] Tomsk State Univ, Tomsk, Russia

来源：

PHYSICS OF ATOMIC NUCLEI | 2024年 / 87卷 / 04期

关键词：

PERTURBATION-THEORY; QCD ANALYSIS;

D O I：

10.1134/S1063778824700388

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：

Below, we present a brief review of the recent studies of the polarized Bjorken sum rule Gamma(p-n)(1 )(Q(2)) for small values of Q(2). Our careful analysis reveals an excellent agreement between the experimental data and the predictions recently obtained in the framework of analytic QCD. Well-known perturbative expressions for coupling constant on the contrary lead to a strong difference between these data and turn out to be inapplicable. To estimate calculated phenomenological values, we discussed the photoproduction limit

引用

页码：536 / 540

页数：5

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