Search for WH associated production in 5.3 fb[super]-1 of [inline image] collisions at the Fermilab Tevatron

• Published in: Physics letters. B 2011-03, Vol.698 (1), p.6-13
• Main Authors: Alexeev, G D, Bandurin, D V, Bartlett, J F, Bazterra, V, Beale, S, Bean, A, Bernhard, R, Bertram, I, Besancon, M, Beuselinck, R, Bezzubov, V A, Blazey, G, Bolton, T A, Boos, EE, Brooijmans, G, Buehler, M, Buescher, V, Bunichev, V, Carrasco-Lizarraga, MA, Chevalier-Thery, S, Cihangir, S, Davies, G, Denisov, D, Denisov, S P, Desai, S, Eads, M, Filthaut, F, tner, M, Garcia-Bellido, A, Gavrilov, V, Geist, W, Gerber, CE, Greenlee, H, Gregores, E M, Gruenendahl, S, Haas, A, Han, L, Hauptman, J M, Heintz, U, Hynek, V, Ito, A S, Jaffre, M, Jonckheere, A, Katsanos, I, Kehoe, R, Khatidze, D, Kirby, M H, Kohli, J M, Kupco, A, Lee, H S, Lee, WM, Li, L, Lietti, S M, Lim, J K, Linnemann, J, Lipaev, V V, Lobodenko, A, Love, P, Madar, R, Magana-Villalba, R, Malik, S, Maravin, Y, Martinez-Ortega, J, McGivern, CL, Meijer, M M, Melnitchouk, A, Meyer, J, Miconi, F, Muanza, G S, Neustroev, P, Novaes, S F, Padilla, M, Partridge, R, Parua, N, Patwa, A, Penning, B, Piegaia, R, Podesta-Lerma, PLM, Protopopescu, S, Santos, A S, Sekaric, J, Skubic, P, Snyder, S, Soeldner-Rembold, S, Sopczak, A, Sosebee, M, Takahashi, M, Tuts, P M, Uvarov, S, Van Kooten, R, Van Leeuwen, WM, Vint, P, Wahl, H D, Wang, MHLS, Watts, G, Welty-Rieger, L, White, A, Wood, DR, Yacoob, S, Yip, K
• Format: Article
• Language: English
• Subjects: Collisions; Confidence intervals; Cross sections; Elementary particles; Energy (nuclear); Mathematical models; Searching
• ISSN: 0370-2693
• DOI: 10.1016/j.physletb.2011.02.036

We present a search for associated production of Higgs and W bosons in [inline image] collisions at a center of mass energy of [inline image] in 5.3 fb[super]-1 of integrated luminosity recorded by the D0 experiment. Multivariate analysis techniques are applied to events containing one lepton, an imbalance in transverse energy, and one or two b-tagged jets to discriminate a potential WH signal from Standard Model backgrounds. We observe good agreement between data and expected backgrounds, and set an upper limit of 4.5 (at 95% confidence level and for m sub(H=115 GeV) on the ratio of the WH cross section multiplied by the branching fraction of [inline image] to its Standard Model prediction, which is consistent with an expected limit of 4.8.)