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Chatrchyan, S; Sirunyan, A M; Tumasyan, A; Eroe, J; Fabjan, C; Ghete, V M; Haensel, S; Hoch, M; Hoermann, N; Krammer, M; Mikulec, I; Rohringer, H; Taurok, A; Wagner, P; Wulz, C-E; Benucci, L; De Wolf, EA; Janssen, X; Maes, T; Van Mechelen, P; Van Remortel, N; Blekman, F; D'hondt, J D; Van Mulders, P; Van Onsem, GP; De Lentdecker, G; Gay, APR; Hammad, G H; Hreus, T; Vanlaer, P; Costantini, S; Lellouch, J; Mccartin, J; Vanelderen, L; Zaganidis, N; Bruno, G; De Jeneret, Jde Favereau; Hollar, J; Militaru, O; Pagano, D; Pin, A; Piotrzkowski, K; Pol, ME; Da Costa, EM; Da Silva, WLPrado; Santoro, A; Sznajder, A; Bernardes, CA; Mercadante, P G; Novaes, S F; Padula, Sandra S; Stoykova, S; Sultanov, G; Tcholakov, V; Trayanov, R; Kozhuharov, V; Litov, L; Mateev, M; Petkov, P; Bian, J G; Liang, S; Tao, J; Wang, J; Wang, Z; Xiao, H; Guo, Y; Li, W; Zhu, B; Cabrera, A; Moreno, BGomez; Rios, AAOcampo; Oliveros, AFOsorio; Godinovic, N; Lelas, D; Lelas, K; Antunovic, Z; Duric, S; Morovic, S; Mousa, J; Nicolaou, C; Kamel, AEllithi; Hektor, A; Kadastik, M; Muentel, M; Azzolini, V; Fedi, G; Czellar, S; Heikkinen, A; Kortelainen, MJ; Ungaro, D; Wendland, L; Banzuzi, K; Tuuva, T; Sillou, D; Dejardin, M; Fabbro, B; Ferri, F; Ganjour, S; Gentit, F X; Givernaud, A
Physics letters. B, 09/2011, Letnik: 703, Številka: 3Journal Article
A search for pair-production of first generation scalar leptoquarks is performed in the final state containing an electron, a neutrino, and at least two jets using proton-proton collision data at inline image. The data were collected by the CMS detector at the LHC, corresponding to an integrated luminosity of 36 pb super(-1. The number of observed events is in good agreement with the predictions for standard model processes. Prior CMS results in the dielectron channel are combined with this electron + neutrino search. A 95% confidence level combined lower limit is set on the mass of a first generation scalar leptoquark at 339 GeV for beta=0.5, where beta is the branching fraction of the leptoquark to an electron and a quark. These results represent the most stringent direct limits to date for values of beta greater than 0.05.)
