Running of the QED coupling in small-angle Bhabha scattering at LEP
| dc.creator | Abbiendi, G. | |
| dc.date | 2005-05-14 | |
| dc.date | 2005-05-18 | |
| dc.date.accessioned | 2026-07-07T03:36:52Z | |
| dc.date.available | 2026-07-07T03:36:52Z | |
| dc.description | Using the OPAL detector at LEP, the running of the effective QED coupling alpha(t) is measured for space-like momentum transfer, 2 \leq -t \leq 6 GeV^2, from the angular distribution of small-angle Bhabha scattering. This is currently the most significant direct observation of the running of the QED coupling in a single experiment and the first clear evidence of the hadronic contribution to the running in the space-like region. Our result is in good agreement with standard evaluations of alpha(t), based on data in the time-like region. | |
| dc.description | Talks given at the 19th Rencontres De Physique De La Vallee D'Aoste (27.2-5.3.05), La Thuile, Italy and at the 40th Rencontres De Moriond On Electroweak Interactions And Unified Theories (5.3-12.3.05), La Thuile, Italy. Added 1 figure and related text wrt vers.1 | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0505040 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0505040 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/37891 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Running of the QED coupling in small-angle Bhabha scattering at LEP | |
| dc.type | text |