@article{3149633,
    title = "Search for Pair Production of First-Generation Scalar Leptoquarks in pp
Collisions at root s=7 TeV",
    author = "Khachatryan, V. and Sirunyan, A. M. and Tumasyan, A. and Adam, W. and and Bergauer, T. and Dragicevic, M. and Eroe, J. and Fabjan, C. and Friedl, and M. and Fruehwirth, R. and Ghete, V. M. and Hammer, J. and Haensel, S. and and Hartl, C. and Hoch, M. and Hoermann, N. and Hrubec, J. and Jeitler, and M. and Kasieczka, G. and Kiesenhofer, W. and Krammer, M. and Liko, D. and and Mikulec, I. and Pernicka, M. and Rohringer, H. and Schoefbeck, R. and and Strauss, J. and Taurok, A. and Teischinger, F. and Wagner, P. and and Waltenberger, W. and Walzel, G. and Widl, E. and Wulz, C. -E. and and Mossolov, V. and Shumeiko, N. and Gonzalez, J. Suarez and Benucci, L. and and Cerny, K. and DeWolf, E. A. and Janssen, X. and Maes, T. and and Mucibello, L. and Ochesanu, S. and Roland, B. and Rougny, R. and and Selvaggi, M. and Van Haevermaet, H. and Van Mechelen, P. and Van and Remortel, N. and Beauceron, S. and Blekman, F. and Blyweert, S. and and D'Hondt, J. and Devroede, O. and Suarez, R. Gonzalez and Kalogeropoulos, and A. and Maes, J. and Maes, M. and Tavernier, S. and Van Doninck, W. and and Van Mulders, P. and Van Onsem, G. P. and Villella, I. and Charaf, O. and and Clerbaux, B. and De Lentdecker, G. and Dero, V. and Gay, A. P. R. and and Hammad, G. H. and Hreus, T. and Marage, P. E. and Thomas, L. and Velde, and C. Vander and Vanlaer, P. and Wickens, J. and Adler, V. and Costantini, and S. and Grunewald, M. and Klein, B. and Marinov, A. and Mccartin, J. and and Ryckbosch, D. and Thyssen, F. and Tytgat, M. and Vanelderen, L. and and Verwilligen, P. and Walsh, S. and Zaganidis, N. and Basegmez, S. and and Bruno, G. and Caudron, J. and Ceard, L. and De Jeneret, J. 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S. and Grothe, M. and and Hall-Wilton, R. and Herndon, M. and Klabbers, P. and Klukas, J. and and Lanaro, A. and Lazaridis, C. and Leonard, J. and Loveless, R. and and Mohapatra, A. and Reeder, D. and Ross, I. and Savin, A. and Smith, W. H. and and Swanson, J. and Weinberg, M. and CMS Collaboration",
    journal = "Physical Review and Physical Review Letters Index",
    year = "2011",
    volume = "106",
    number = "20",
    publisher = "AMER PHYSICAL SOC",
    issn = "0094-0003",
    doi = "10.1103/PhysRevLett.106.201802",
    abstract = "A search for pair production of first-generation scalar leptoquarks is
performed in the final state containing two electrons and two jets using
proton-proton collision data at root s = 7 TeV. The data sample used
corresponds to an integrated luminosity of 33 pb(-1) collected with the
CMS detector at the CERN LHC. The number of observed events is in good
agreement with the predictions for the standard model background
processes, and an upper limit is set on the leptoquark pair production
cross section times beta(2) as a function of the leptoquark mass, where
beta is the branching fraction of the leptoquark decay to an electron
and a quark. A 95% confidence level lower limit is set on the mass of a
first-generation scalar leptoquark at 384 GeV for beta = 1, which is the
most stringent direct limit to date."
}