Exact analytic two-loop expressions for some QCD observables in the time-like region
| dc.creator | Kourashev, Dmitri S. | |
| dc.date | 2000-10-08 | |
| dc.date | 2001-01-10 | |
| dc.date.accessioned | 2026-07-07T03:42:54Z | |
| dc.date.available | 2026-07-07T03:42:54Z | |
| dc.description | The author of this work have got explicit expressions for the timelike region at Next-to-Leading-Order (NLO) as for the coupling function so for QCD observables. These expressions were compared with approximate ones obtained in terms of "double logarithms". Next-Next-to-Leading-Order (NNLO) Pade approximation was also discussed. In this paper some particular role of NLO was emphasised. It is related with the possibility to express any multi-loop expressions in terms of the two-loop ones. Thus we can use NLO functions as a basis of some functional expansion, where higher loop terms incorporation affects the expansion coefficients only. | |
| dc.description | 8 pages | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0010072 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0010072 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/40041 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Exact analytic two-loop expressions for some QCD observables in the time-like region | |
| dc.type | text |