Observation of events with an isolated high energy lepton and missing transverse momentum at HERA

Journal article

A search for events with an imbalance in transverse momentum and with isolated high energy leptons has been carried out at the positron-proton collider HERA. One event with an e- and five events with a μ± are found together with evidence for undetected particles carrying transverse momentum. Within the Standard Model the dominant origin of events with this kind of topology is the production of W bosons with subsequent leptonic decay. Three of the six events are within measurement errors found in a region of phase space likely to be populated by this process, while the remaining events show kinematic properties which are atypical of all Standard Model processes considered.

Authors: Adloff, C; Anderson, M; Andreev, V; Andrieu, B; Arkadov, V

• Publication status: Published
• Journal: EUROPEAN PHYSICAL JOURNAL C
• Volume: 5
• Issue: 4
• Pages: 575-584
• Publication date: 1998-10-01
• DOI: 10.1007/s100520050302
• ISSN: 1434-6044
• Language: English