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Events with an isolated lepton and missing transverse momentum and measurement of W production at HERA


H1 Collaboration; Zeus Collaboration; et al; Degan, M; Egli, S; Grab, C; Hildebrandt, M; Krüger, K; Leibenguth, G; Müller, K; Nowak, K; Robmann, P; Truöl, P; Zimmermann, T (2010). Events with an isolated lepton and missing transverse momentum and measurement of W production at HERA. Journal of High Energy Physics, (3):25.

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.

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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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Language:English
Date:2010
Deposited On:19 Jan 2011 14:28
Last Modified:05 Apr 2016 14:36
Publisher:Springer
ISSN:1029-8479
Publisher DOI:10.1007/JHEP03(2010)035
Related URLs:http://arxiv.org/abs/0911.0858v2
Permanent URL: http://doi.org/10.5167/uzh-42690

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