Nonperturbative aspects of the QCD analytic invariant charge
| dc.creator | Nesterenko, A. V. | |
| dc.date | 2003-07-22 | |
| dc.date.accessioned | 2026-07-07T03:50:11Z | |
| dc.date.available | 2026-07-07T03:50:11Z | |
| dc.description | In the framework of the analytic approach to Quantum Chromodynamics a new model for the strong running coupling has recently been developed. Its underlying idea is to impose the analyticity requirement on the perturbative expansion of the renormalization group $β$ function for restoring the correct analytic properties of the latter. The proposed model possesses a number of appealing features. Namely, the analytic invariant charge has no unphysical singularities at any loop level; it contains no free parameters; it has universal behavior both in ultraviolet and infrared regions at any loop level; and it possesses a fair higher loop and scheme stability. The extension of this model to the timelike region revealed the asymmetrical behavior of the running coupling in the intermediate- and low-energy domains of spacelike and timelike regions, that is essential when one handles the experimental data. The developed approach enables one to describe, in a consistent way, various strong interaction processes both of perturbative and intrinsically nonperturbative nature. | |
| dc.description | Talk given at Tenth International QCD Conference (QCD 03), 2 - 9 July 2003, Montpellier, France; LaTeX2e, 4 pages, 4 EPS figures | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0307283 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0307283 | |
| dc.identifier | Nucl. Phys. B (Proc. Suppl.) 133, 59 (2004) | |
| dc.identifier | doi:10.1016/j.nuclphysbps.2004.04.137 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/42681 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.subject | High Energy Physics - Theory | |
| dc.title | Nonperturbative aspects of the QCD analytic invariant charge | |
| dc.type | text |