Publication
Title
Multi-leptons with high transverse momentum at HERA
Author
Institution/Organisation
H1 Collaboration
ZEUS Collaboration
Abstract
Events with at least two high transverse momentum leptons (electrons or muons) are studied using the H1 and ZEUS detectors at HERA with an integrated luminosity of 0.94 fb−1. The observed numbers of events are in general agreement with the Standard Model predictions. Seven di- and tri-lepton events are observed in e+p collision data with a scalar sum of the lepton transverse momenta above 100 GeV while 1.94±0.17 events are expected. Such events are not observed in e−p collisions for which 1.19±0.12 are predicted. Total visible and differential di-electron and di-muon photoproduction cross sections are extracted in a restricted phase space dominated by photon-photon collisions.
Language
English
Source (journal)
Journal of high energy physics. - Bristol
Publication
Bristol : 2009
ISSN
1126-6708
1029-8479 [online]
Volume/pages
10(2009), p. 013,1-013,18
ISI
000271542800013
Full text (Publisher's DOI)
Full text (publisher's version - intranet only)
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 19.01.2010
Last edited 02.11.2017
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