TY - JOUR
T1 - Bjorken sum rule in QCD with analytic coupling
AU - Ayala, C.
AU - Cvetič, G.
AU - Kotikov, A. V.
AU - Shaikhatdenov, B. G.
N1 - Publisher Copyright:
© Published under licence by IOP Publishing Ltd.
PY - 2018/1/5
Y1 - 2018/1/5
N2 - We present details of study of the Bjorken polarized sum rule carried out recently in [1] within the range of energies where the data were collected by JLAB collaboration, 0.05 GeV2 < Q 2 < 3 GeV2. Three approaches to QCD with analytic (holomorphic) coupling are considered: Analytic Perturbation Theory (APT), Two-delta analytic QCD (2δanQCD), and Three-delta lattice-motivated analytic QCD in the three-loop and four-loop MiniMOM schemes (3l3δanQCD, 4l3δanQCD). The new frameworks (2δ and 3δ) with respective couplings give results which agree well with the experimental data for 0.5 GeV2 < Q 2 < 3 GeV2 already when only one higher-twist term is taken into account.
AB - We present details of study of the Bjorken polarized sum rule carried out recently in [1] within the range of energies where the data were collected by JLAB collaboration, 0.05 GeV2 < Q 2 < 3 GeV2. Three approaches to QCD with analytic (holomorphic) coupling are considered: Analytic Perturbation Theory (APT), Two-delta analytic QCD (2δanQCD), and Three-delta lattice-motivated analytic QCD in the three-loop and four-loop MiniMOM schemes (3l3δanQCD, 4l3δanQCD). The new frameworks (2δ and 3δ) with respective couplings give results which agree well with the experimental data for 0.5 GeV2 < Q 2 < 3 GeV2 already when only one higher-twist term is taken into account.
UR - https://www.scopus.com/pages/publications/85040991406
U2 - 10.1088/1742-6596/938/1/012055
DO - 10.1088/1742-6596/938/1/012055
M3 - Conference article
AN - SCOPUS:85040991406
SN - 1742-6588
VL - 938
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
IS - 1
M1 - 012055
T2 - 17th Workshop on High Energy Spin Physics, DSPIN 2017
Y2 - 11 September 2017 through 15 September 2017
ER -