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

Aaron, F.D. and Abramowicz, H. and Abt, I. and Adamczyk, L. and Adamus, M. and Martin, M.A. and Alexa, C. and Andreev, V. and Antonelli, S. and Antonioli, P. and Antonov, A. and Antunovic, B. and Arneodo, M. and Aushev, V. and Bachynska, O. and Backovic, S. and Baghdasaryan, A. and Bamberger, A. and Barakbaev, A.N. and Barbagli, G. and Bari, G. and Barreiro, F. and Barrelet, E. and Bartel, W. and Bartsch, D. and Basile, M. and Begzsuren, K. and Behnke, O. and Behr, J. and Behrens, U. and Bellagamba, L. and Belousov, A. and Bertolin, A. and Bhadra, S. and Bindi, M. and Bizot, J.C. and Blohm, C. and Bold, T. and Boos, E.G. and Borodin, M. and Borras, K. and Boscherini, D. and Bot, D. and Boudry, V. and Boutle, S.K. and Bozovic-Jelisavcic, I. and Bracinik, J. and Brandt, G. and Brinkmann, M. and Brisson, V. and Brock, I. and Brownson, E. and Brugnera, R. and Bruemmer, N. and Bruncko, D. and Bruni, A. and Bruni, G. and Brzozowska, B. and Bunyatyan, A. and Buschhorn, G. and Bussey, P.J. and Butterworth, J.M. and Bylsma, B. and Bystritskaya, L. and Caldwell, A. and Campbell, A.J. and Avila, K.B.C. and Capua, M. and Carlin, R. and Catterall, C.D. and Cerny, K. and Cerny, V. and Chekanov, S. and Chekelian, V. and Cholewa, A. and Chwastowski, J. and Ciborowski, J. and Cifarelli, L. and Cindolo, F. and Contin, A. and Contreras, J.G. and Cooper-Sarkar, A.M. and Coppola, N. and Corradi, M. and Corriveau, F. and Costa, M. and Coughlan, J.A. and Cozzika, G. and Cvach, J. and D'Agostini, G. and Dainton, J.B. and Dal Corso, F. and Daum, K. and Deak, M. and de Favereau, J. and Delcourt, B. and Del Degan, M. and del Peso, J. and Delvax, J. and Dementiev, R.K. and De Pasquale, S. and Derrick, M. and Devenish, R.C.E. and De Wolf, E.A. and Diaconu, C. and Dobur, D. and Dodonov, V. and Dolgoshein, B.A. and Dossanov, A. and Doyle, A.T. and Drugakov, V. and Dubak, A. and Durkin, L.S. and Dusini, S. and Eckerlin, G. and Efremenko, V. and Egli, S. and Eisenberg, Y. and Eliseev, A. and Elsen, E. and Ermolov, P.F. and Eskreys, A. and Falkiewicz, A. and Fang, S. and Favart, L. and Fazio, S. and Fedotov, A. and Felst, R. and Feltesse, J. and Ferencei, J. and Ferrando, J. and Ferrero, M.I. and Figiel, J. and Fischer, D.J. and Fleischer, M. and Fomenko, A. and Forrest, M. and Foster, B. and Fourletov, S. and Gabathuler, E. and Galas, A. and Gallo, E. and Garfagnini, A. and Gayler, J. and Geiser, A. and Ghazaryan, S. and Gialas, I. and Gladilin, L.K. and Gladkov, D. and Glasman, C. and Glazov, A. and Glushkov, I. and Goerlich, L. and Gogitidze, N. and Golubkov, Y.A. and Goettlicher, P. and Gouzevitch, M. and Grab, C. and Grabowska-Bold, I. and Grebenyuk, J. and Greenshaw, T. and Gregor, I. and Grell, B.R. and Grigorescu, G. and Grindhammer, G. and Grzelak, G. and Gwenlan, C. and Haas, T. and Habib, S. and Haidt, D. and Hain, W. and Hamatsu, R. and Hart, J.C. and Hartmann, H. and Hartner, G. and Helebrant, C. and Henderson, R.C.W. and Hennekemper, E. and Henschel, H. and Herbst, M. and Herrera, G. and Hildebrandt, M. and Hilger, E. and Hiller, K.H. and Hochman, D. and Hoffmann, D. and Holm, U. and Hori, R. and Horisberger, R. and Horton, K. and Hreus, T. and Huettmann, A. and Iacobucci, G. and Ibrahim, Z.A. and Iga, Y. and Ingbir, R. and Ishitsuka, M. and Jacquet, M. and Jakob, H.P. and Janssen, X. and Januschek, F. and Jimenez, M. and Jones, T.W. and Joensson, L. and Jung, A.W. and Jung, H. and Juengst, M. and Kadenko, I. and Kahle, B. and Kamaluddin, B. and Kananov, S. and Kanno, T. and Kapichine, M. and Karshon, U. and Karstens, F. and Katkov, I.I. and Katzy, J. and Kaur, M. and Kaur, P. and Kenyon, I.R. and Keramidas, A. and Khein, L.A. and Kiesling, C. and Kim, J.Y. and Kisielewska, D. and Kitamura, S. and Klanner, R. and Klein, M. and Klein, U. and Kleinwort, C. and Kluge, T. and Knutsson, A. and Koffeman, E. and Kogler, R. and Kollar, D. and Kooijman, P. and Korol, I. and Korzhavina, I.A. and Kostka, P. and Kotanski, A. and Koetz, U. and Kowalski, H. and Kraemer, M. and Krastev, K. and Kretzschmar, J. and Kropivnitskaya, A. and Krueger, K. and Kulinski, P. and Kuprash, O. and Kutak, K. and Kuze, M. and Kuzmin, V.A. and Landon, M.P.J. and Lange, W. and Lastovicka-Medin, G. and Laycock, P. and Lebedev, A. and Lee, A. and Leibenguth, G. and Lendermann, V. and Levchenko, B.B. and Levonian, S. and Levy, A. and Li, G. and Libov, V. and Limentani, S. and Ling, T.Y. and Lipka, K. and Liptaj, A. and Lisovyi, M. and List, B. and List, J. and Lobodzinska, E. and Lohmann, W. and Loehr, B. and Lohrmann, E. and Loizides, J.H. and Loktionova, N. and Long, K.R. and Longhin, A. and Lontkovskyi, D. and Lopez-Fernandez, R. and Lubimov, V. and Lukasik, J. and Lukina, O.Y. and Luzniak, P. and Maeda, J. and Magill, S. and Makankine, A. and Makarenko, I. and Malinovski, E. and Malka, J. and Mankel, R. and Marage, P. and Margotti, A. and Marini, G. and Marti, L. and Martin, J.F. and Martyn, H. 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Journal of High Energy Physics (3).

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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.

Item Type: Article
Funders: UNSPECIFIED
Uncontrolled Keywords: Lepton-Nucleon Scattering
Subjects: Q Science > Q Science (General)
Depositing User: Dr Mohd Faizal Hamzah
Date Deposited: 22 Dec 2015 01:45
Last Modified: 10 Oct 2019 02:46
URI: http://eprints.um.edu.my/id/eprint/15151

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