Events with an isolated lepton and missing transverse momentum and measurement of W production at HERA
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Date
2010-03
Publication Type
Journal Article
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yes
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Abstract
A search for events containing an isolated electron or muon and missing transverse momentum produced in e ± p collisions is performed with the H1 and ZEUS detectors at HERA. The data were taken in the period 1994–2007 and correspond to an integrated luminosity of 0.98 fb−1. The observed event yields are in good overall agreement with the Standard Model prediction, which is dominated by single W production. In the e + p data, at large hadronic transverse momentum P T X > 25GeV, a total of 23 events are observed compared to a prediction of 14.0 ± 1.9. The total single W boson production cross section is measured as 1.06 ± 0.16 (stat.) ± 0.07 (sys.) pb, in agreement with an Standard Model (SM) expectation of 1.26 ± 0.19 pb.
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published
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2010 (3)
Pages / Article No.
35
Publisher
Springer
Event
Workshop on Sensor Networks for Civil Infrastructure Systems
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Subject
Lepton-Nucleon Scattering