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
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
收藏
页码:536 / 540
页数:5
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