Search for Unstable Heavy and Excited Leptons at LEP2
| dc.creator | The OPAL collaboration | |
| dc.creator | Abbiendi, G. | |
| dc.date | 2000-01-24 | |
| dc.date.accessioned | 2026-07-07T12:01:28Z | |
| dc.date.available | 2026-07-07T12:01:28Z | |
| dc.description | Searches for unstable neutral and charged heavy leptons, N and L+-, and for excited states of neutral and charged leptons, nu*, e*, mu*, and tau*, have been performed in e+e- collisions using data collected by the OPAL detector at LEP. The data analysed correspond to an integrated luminosity of about 58pb-1 at a centre-of-mass energy of 183GeV, and about 10pb-1 each at 161GeV and 172GeV. No evidence for new particles was found. Lower limits on the masses of unstable heavy and excited leptons are derived. From the analysis of charged-current, neutral-current, and photonic decays of singly produced excited leptons, upper limits are determined for the ratio of the coupling to the compositeness scale, f/Lambda, for masses up to the kinematic limit. For excited leptons, the limits are established independently of the relative values of the coupling constants f and f'. | |
| dc.description | 27 pages, 8 figures, submitted to Eur.Phys. J. C | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0001056 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0001056 | |
| dc.identifier | Eur.Phys.J.C14:73-84,2000 | |
| dc.identifier | doi:10.1007/s100520050734 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/207105 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Search for Unstable Heavy and Excited Leptons at LEP2 | |
| dc.type | text |