Beta-Function in QCD and Gluon Condensate
| dc.creator | Alekseev, A. I. | |
| dc.creator | Arbuzov, B. A. | |
| dc.date | 2004-07-05 | |
| dc.date | 2004-08-27 | |
| dc.date.accessioned | 2026-07-07T03:52:49Z | |
| dc.date.available | 2026-07-07T03:52:49Z | |
| dc.description | Under assumption of singular behavior of alpha_s(q^2) at q^2 sim 0 and of large q^2 behavior, corresponding to the perturbation theory up to four loops, a procedure is considered of matching the beta-function at a boundary of perturbative and non-perturbative regions. The contribution of the non-perturbative region to the gluon condensate is calculated with varying normalization condition alpha_s(m_tau^2) = 0.29, 0.30,..., 0.36 for two different ways of definition of the non-perturbative invariant charge in the infrared region. We obtain quite consistent results for values of the gluon condensate, nonperturbative region scale q_0, and the string tension sigma. | |
| dc.description | LaTeX, 10 pages, 2 figures, added reference, not great elucidation after eq.(3) and in abstract | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0407056 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0407056 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/43603 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Beta-Function in QCD and Gluon Condensate | |
| dc.type | text |