Bjorken sum rule in QCD with analytic coupling

C. Ayala, G. Cvetič, A. V. Kotikov, B. G. Shaikhatdenov

Research output: Contribution to conferencePaper

3 Citations (Scopus)


© Published under licence by IOP Publishing Ltd. 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.
Original languageEnglish
Publication statusPublished - 5 Jan 2018
EventJournal of Physics: Conference Series -
Duration: 18 Oct 2018 → …


ConferenceJournal of Physics: Conference Series
Period18/10/18 → …

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    Ayala, C., Cvetič, G., Kotikov, A. V., & Shaikhatdenov, B. G. (2018). Bjorken sum rule in QCD with analytic coupling. Paper presented at Journal of Physics: Conference Series, .