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W production and the search for events with an isolated high-energy lepton and missing transverse momentum at HERA

Breitweg, J. et al. (2000) W production and the search for events with an isolated high-energy lepton and missing transverse momentum at HERA. Physics Letters B, 471 (4). 411 -428. ISSN 0370-2693 (doi:10.1016/S0370-2693(99)01358-1)

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Abstract

A search for the leptonic decays of W bosons produced in the reaction e/sup +/p to e/sup +/W/sup +or-/X at a centre-of-mass energy of 300 GeV has been performed with the ZEUS detector at HERA using an integrated luminosity of 47.7 pb/sup -1/. Three events consistent with W to e nu decay are found, giving a cross section estimate of 0.9/sub -0.7//sup +1.0/+or-0.2 pb, in good agreement with the standard model prediction. The corresponding 95% C.L. upper limit on the cross section is 3.3 pb. A search for the decay W to mu nu has a smaller selection efficiency and yields no candidate events. Limits on the cross section for W production with large hadronic transverse momentum have been obtained. A search for high-transverse-momentum isolated tracks in events with large missing transverse momentum yields results in good agreement with standard model expectations, in contrast to a recent report by the H1 collaboration of the observation of an excess of such events.

Item Type:Article
Status:Published
Refereed:Yes
Glasgow Author(s):Saxon, Prof David and Bussey, Dr Peter and Doyle, Prof Anthony and Skillicorn, Prof Ian
Authors: Breitweg, J., Chekanov, S., Derrick, M., Krakauer, D., Magill, S., Musgave, B., Pellegrino, A., Repond, J., Stanek, R., Yoshida, R., Mattingly, M.C.K., Abbiendi, G., Anselmo, F., Antonioli, P., Bari, G., Basile, M., Bellagamba, L., Boscherini, D., Bruni, A., Bruni, G., Cara Romeo, G., Castellini, G., Cifarelli, L., Cindolo, F., Contin, A., Coppola, N., Corradi, M., de Pasquale, S., Giusti, P., Iacobucci, G., Laurenti, G., Levi, G., Margotti, A., Massam, T., Nania, R., Palmonari, F., Pesci, A., Polini, A., Sartorelli, G., Zamora Garcia, Y., Zichichi, A., Amelung, C., Bornheim, A., Brock, I., Coboken, K., Crittenden, J., Deffner, R., Eckert, M., Hartmann, H., Heinloth, K., Hilger, E., Jakob, H.P., Kappes, A., Katz, U.F., Kerger, R., Paul, E., Rautenberg, J., Schnurbusch, H., Stifutkin, A., Tandler, J., Weber, A., Wieber, H., Bailey, D.S., Barrett, O., Cottingham, W.N., Foster, B., Heath, G.P., Heath, H.F., McFall, J.D., Piccioni, D., Scott, J., Tapper, R.J., Capua, M., Mastroberardino, A., Schioppa, M., Susinno, G., Jeoung, H.Y., Kim, J.Y., Lee, J.H., Lim, I.T., Ma, K.J., Pac, M.Y., Caldwell, A., Cartiglia, N., Jing, Z., Liu, W., Mellado, B., Parsons, J.A., Ritz, S., Sacchi, R., Sampson, S., Sciulli, F., Zhu, Q., Chwastowski, J., Eskreys, A., Figiel, J., Klimek, K., Olkiewicz, K., Przybycien, M.B., Stopa, P., Zawiejski, L., Adamczyk, L., Bednarek, B., Jelen, K., Kisielewska, D., Kowal, A.M., Kowalski, T., Przybycien, M., Rulikowska-Zarebska, E., Suszycki, L., Zajac, J., Dulinski, Z., Kotanski, A., Bauerdick, L.A.T., Behrens, U., Bienlein, J.K., Burgard, C., Desler, K., Drews, G., Fox-Murphy, A., Fricke, U., Goebel, F., Gottlicher, P., Graciani, R., Haas, T., Hain, W., Hartner, G.F., Hassell, D., Hebbell, K., Johnson, K.F., Kasemann, M., Koch, W., Kotz, U., Kowalski, H., Lindemann, L., Lohr, B., Martinez, M., Milewski, J., Milite, M., Monteiro, T., Moritz, M., Notz, D., Pelucchi, F., Piotrzkowski, K., Rohde, M., Saull, P.R.B., Savin, A.A., Schneekloth, U., Schwarzer, O., Selonke, F., Sievers, M., Stonjek, S., Tassi, E., Wolf, G., Wollmer, U., Youngman, C., Zeuner, W., Burow, B.D., Coldewey, C., Grabosch, H.J., Lopez-Duran Viani, A., Meyer, A., Monig, K., Schlenstedt, S., Straub, P.B., Barbagli, G., Gallo, E., Pelfer, P., Maccarrone, G., Votano, L., Bamberger, A., Eisenhardt, S., Markun, P., Raach, H., Wolfle, S., Brook, N.H., Bussey, P.J., Doyle, A.T., Lee, S.W., Macdonald, N., McCance, G.J., Saxon, D.H., Sinclaire, L.E., Skillicorn, I.O., Strickland, E., Waugh, R., Bohnet, I., Gendner, N., Holm, U., Meyer-Larsen, A., Salehi, H., Wick, K., Garfagnini, A., Gialas, I., Gladilin, L.K., Kcira, D., Klanner, R., Lohrmann, E., Poelz, G., Zetsche, F., Bacon, T.C., Cole, J.E., Howell, G., Lamberti, L., Long, K.R., Miller, D.B., Prinias, A., Sedgbeer, J.K., Sideris, D., Tapper, A.D., Walker, R., Mallik, U., Wang, S.M., Cloth, P., Filges, D., Ishii, T., Kuze, M., Suzuki, I., Tokushuku, K., Yamada, S., Yamauchi, K., Yamazaki, Y., Ahn, S.H., An, S.H., Hong, S.J., Lee, S.B., Nam, S.W., Park, S.K., Lim, H., Park, I.H., Son, D., Barreiro, F., Fernandez, J.P., Garcia, G., Glasman, C., Hernandez, J.M., Labarga, L., del Peso, J., Puga, J., Redondo, I., Terron, J., Corriveau, F., Hanna, D.S., Hartmann, J., Murray, W.N., Ochs, A., Padhi, S., Riveline, M., Stairs, D.G., St Laurent, M., Wing, M., Tsurugai, T., Bashkirov, V., Dolgoshein, B.A., and Bashindzhagyan, G.L.
Subjects:Q Science > QC Physics
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Physics Letters B
Publisher:Elsevier BV
ISSN:0370-2693
ISSN (Online):1873-2445

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