Study of Rare Exclusive Electroweak Processes at HERA

TL;DR

This paper reports on rare electroweak processes observed at HERA, including multi-lepton events and single W production, based on the complete data collected by the H1 and ZEUS experiments totaling approximately 1fb-1.

Contribution

First comprehensive analysis of rare electroweak processes at HERA using the full dataset from H1 and ZEUS experiments.

Findings

Observation of multi-lepton events at high transverse momentum

Detection of isolated lepton events with large missing transverse energy

Measurement of single W boson production

Abstract

Results on multi-lepton events at high transverse momenta, isolated lepton events with large missing transverse energy and single W production reported to this conference are based for the first time on the full data samples taken by two colliding experiments, H1 and ZEUS, at HERA. The data correspond to an integrated luminosity of about 1fb-1 from both experiments.