Test of the Flavour Independence of alpha_s using Next-to-Leading Order Calculations for Heavy Quarks
| dc.creator | The OPAL Collaboration | |
| dc.creator | al, G. Abbiendi et | |
| dc.date | 1999-04-13 | |
| dc.date.accessioned | 2026-07-07T12:02:31Z | |
| dc.date.available | 2026-07-07T12:02:31Z | |
| dc.description | We present a test of the flavour independence of the strong coupling constant for charm and bottom quarks with respect to light (uds) quarks, based on a hadronic event sample obtained with the OPAL detector at LEP. Five observables related to global event shapes were used to measure alpha_s in three flavour tagged samples (uds, c and b). The event shape distributions were fitted by Order(alpha_s**2) calculations of jet production taking into account mass effects for the c and b quarks. We find: = 0.997 +- 0.038(stat.) +- 0.030(syst.) +- 0.012(theory) and = 0.993 +- 0.008(stat.) +- 0.006(syst.) +- 0.011(theory) for the ratios alpha_s(charm)/alpha_s(uds) and alpha_s(b)/alpha_s(uds) respectively. | |
| dc.description | 32 pages, LaTeX, including 8 eps figures, submitted to European Physical Journal C | |
| dc.identifier | https://arxiv.org/abs/hep-ex/9904013 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/9904013 | |
| dc.identifier | Eur.Phys.J.C11:643-659,1999 | |
| dc.identifier | doi:10.1007/s100520050661 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/207469 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Test of the Flavour Independence of alpha_s using Next-to-Leading Order Calculations for Heavy Quarks | |
| dc.type | text |