1998/01/01 by C. Adloff, C. Adloff et al. · 1 citation
Computer Science · Physics and Astronomy · #Computational Physics and Python Applications #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #hep-ex
paper · pdf · doi:10.1007/s100520050302
published as Eur.Phys.J.C5:575-584,1998 · 18 pages, 5 figures, 2 tables, submitted to Eur. Phys. J
openalex publication_date 1998/01/01 · arxiv created 1998/06/09 · arxiv updated 2009/11/30 · openalex created_date 2019/06/27 · openalex updated_date 2026/07/29
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 mu+- 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.