Multi-lepton production at high transverse momentum at HERA
High Energy Physics - Experiment
2012-08-27 v2
Abstract
A search for events containing two or more high-transverse-momentum isolated leptons has been performed in ep collisions with the ZEUS detector at HERA using the full collected data sample, corresponding to an integrated luminosity of 480 pb^{-1}. The number of observed events has been compared with the prediction from the Standard Model, searching for possible deviations, especially for multi-lepton events with invariant mass larger than 100 GeV. Good agreement with the Standard Model has been observed. Total and differential cross sections for di-lepton production have been measured in a restricted phase space dominated by photon-photon collisions.
Cite
@article{arxiv.0906.1504,
title = {Multi-lepton production at high transverse momentum at HERA},
author = {ZEUS Collaboration},
journal= {arXiv preprint arXiv:0906.1504},
year = {2012}
}
Comments
18 pages, 5 figures. v2: revised version for journal publication