Mearsurement of $α_s$ and the $β$ function with the DELPHI detector at LEP
| dc.creator | Passon, Oliver | |
| dc.date | 2003-09-02 | |
| dc.date | 2003-09-03 | |
| dc.date.accessioned | 2026-07-07T11:31:28Z | |
| dc.date.available | 2026-07-07T11:31:28Z | |
| dc.description | Event shape distributions in $e^+e^-$ annihilation are determined from the DELPHI data taken between 183 and 207\gev. From these the strong coupling $α_s$ is extracted with several techniques. Together with the results from other LEP2 energies and at about $m_Z$ this allows both, a combined measurement of $α_s$ and a test of the scale dependence of the strong interaction. Alternatively the renormalisation group invariant (RGI) perturbation theory is applied to measure the $β$ function of strong interaction. The results are good agreement with the QCD expectation and allow to exclude the existence of light gluinos with a mass below 30\gev in a model independent way. | |
| dc.description | Talk presented at the QCD02 conference, Montpellier 2002 | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0309023 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0309023 | |
| dc.identifier | Nucl.Phys.Proc.Suppl.121:69-72,2003 | |
| dc.identifier | doi:10.1016/S0920-5632(03)01815-2 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/197278 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Mearsurement of $α_s$ and the $β$ function with the DELPHI detector at LEP | |
| dc.type | text |