Measurement of the Longitudinal Cross-Section using the Direction of the Thrust Axis in Hadronic Events at LEP
| dc.creator | The OPAL Collaboration | |
| dc.creator | al, G. Abbiendi et | |
| dc.date | 1998-08-30 | |
| dc.date.accessioned | 2026-07-07T12:02:25Z | |
| dc.date.available | 2026-07-07T12:02:25Z | |
| dc.description | In the process e+e- to hadrons, one of the effects of gluon emission is to modify the 1+cos(theta)**2 form of the angular distribution of the thrust axis, an effect which may be quantified by the longitudinal cross-section. Using the OPAL detector at LEP, we have determined the longitudinal to total cross-section ratio to be 0.0127+-0.0016+-0.0013 at the parton level, in good agreement with the expectation of QCD computed to Order(alpha_s**2) Comparisions at the hadron level with Monte Carlo models are presented. The dependence of the longitudinal cross-section on the value of thrust has also been studied, and provides a new test of QCD. | |
| dc.description | 16 pages, LaTeX, 4 eps figures and 3 colour eps figs included, submitted to Phys. Lett. B | |
| dc.identifier | https://arxiv.org/abs/hep-ex/9808035 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/9808035 | |
| dc.identifier | Phys.Lett.B440:393-402,1998 | |
| dc.identifier | doi:10.1016/S0370-2693(98)01172-1 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/207433 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Measurement of the Longitudinal Cross-Section using the Direction of the Thrust Axis in Hadronic Events at LEP | |
| dc.type | text |