A search for events containing an isolated electron or muon and missing trans verse 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.

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

COSTA, Marco;FERRERO, Maria Italia;MONACO, Vincenzo;SACCHI, Roberto;SOLA, VALENTINA;SOLANO, Ada Maria;
2010-01-01

Abstract

A search for events containing an isolated electron or muon and missing trans verse 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.
2010
3
35
-
http://dx.doi.org/10.1007/JHEP03(2010)035
High Energy Physics; HERA; ZEUS Collaboration
F. D. Aaron;H. Abramowicz;I. Abt;L. Adamczyk;M. Adamus;M. A. Martin;C. Alexa;V. Andreev;S. Antonelli;P. Antonioli;A. Antonov;B. Antunovic;...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/88133
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