| Issue |
EPJ Web Conf.
Volume 138, 2017
XXIII International Baldin Seminar on High Energy Physics Problems Relativistic Nuclear Physics and Quantum Chromodynamics (Baldin ISHEPP XXIII)
|
|
|---|---|---|
| Article Number | 02004 | |
| Number of page(s) | 6 | |
| Section | Quantum chromodynamics at large distances | |
| DOI | https://doi.org/10.1051/epjconf/201713802004 | |
| Published online | 27 March 2017 | |
https://doi.org/10.1051/epjconf/201713802004
Deviation pattern approach for optimizing perturbative terms of QCD renormalization group invariant observables
Physics Department, Yazd University, P.O.Box, 89195-741, Yazd, Iran
* mkhellat@gmail.com
** a.mirjalili@yazd.ac.ir
Published online: 27 March 2017
We first consider the idea of renormalization group-induced estimates, in the context of optimization procedures, for the Brodsky-Lepage-Mackenzie approach to generate higher-order contributions to QCD perturbative series. Secondly, we develop the deviation pattern approach (DPA) in which through a series of comparisons between lowerorder RG-induced estimates and the corresponding analytical calculations, one could modify higher-order RG-induced estimates. Finally, using the normal estimation procedure and DPA, we get estimates of αs4 corrections for the Bjorken sum rule of polarized deep-inelastic scattering and for the non-singlet contribution to the Adler function.
© The Authors, published by EDP Sciences, 2017
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