Searches for excited fermions in ep collisions at HERA
| dc.creator | ZEUS Collaboration | |
| dc.creator | Chekanov, S. | |
| dc.date | 2001-09-14 | |
| dc.date | 2002-10-24 | |
| dc.date.accessioned | 2026-07-07T11:46:34Z | |
| dc.date.available | 2026-07-07T11:46:34Z | |
| dc.description | Searches in ep collisions for heavy excited fermions have been performed with the ZEUS detector at HERA. Excited states of electrons and quarks have been searched for in e^+p collisions at a centre-of-mass energy of 300 GeV using an integrated luminosity of 47.7 pb^-1. Excited electrons have been sought via the decays e*->egamma, e*->eZ and e*->nuW. Excited quarks have been sought via the decays q*->qgamma and q*->qW. A search for excited neutrinos decaying via nu*->nugamma, nu*->nuZ and nu*->eW is presented using e^-p collisions at 318 GeV centre-of-mass energy, corresponding to an integrated luminosity of 16.7 pb^-1. No evidence for any excited fermion is found, and limits on the characteristic couplings are derived for masses below 250 GeV. | |
| dc.description | 18 pages, 5 figures, Submitted to PLB. Revised analysis takes excited fermion natural width into account | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0109018 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0109018 | |
| dc.identifier | Phys.Lett.B549:32-47,2002 | |
| dc.identifier | doi:10.1016/S0370-2693(02)02863-0 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/202271 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Searches for excited fermions in ep collisions at HERA | |
| dc.type | text |