Search for second generation scalar leptoquarks in pp collisions at with the ATLAS detector

• Published in: The European physical journal. C, Particles and fields Particles and fields, 2012-09, Vol.72 (9), p.2151
• Main Authors: Abbott, B., Adamczyk, L., Aderholz, M., Albert, J., Aperio Bella, L., Arabidze, G., Besson, N., Bold, T., Borisov, A., Buran, T., Cameron, D., Chan, K., Chikovani, L., Cirilli, M., Colon, G., Del Papa, C., Delemontex, T., Doherty, T., Doria, A., Dosil, M., Ernst, J., Farilla, A., Ferreira de Lima, D. E., Fleck, I., Froidevaux, D., Fukunaga, C., Gillman, A. R., Graziani, E., Hansen, J. D., Haywood, S. J., Heinemann, B., Henke, M., Hensel, C., Holmgren, S. O., Hruska, I., Imori, M., Iwanski, W., Jakubek, J., Jeanty, L., Joshi, K. D., Kartvelishvili, V., Kashif, L., Khomich, A., Kisielewska, D., Klinger, J. A., Lablak, S., Lehmann Miotto, G., Lenzi, B., Lessard, J-R., Levitski, M. S., Li, H., Liebig, W., Lohse, T., Loken, J., Lopez Mateos, D., Mangeard, P. S., Meloni, F., Mindur, B., Mitrevski, J., Möser, N., Molina-Perez, J., Morozov, S. V., Navarro, G., Nilsson, P., Ottersbach, J. P., Owen, S., Paredes Hernandez, D., Parker, M. A., Perantoni, M., Ping, J., Pleskach, A. V., Purohit, M., Puzo, P., Rave, T. C., Roe, S., Romanov, V. M., Ros, E., Salamanna, G., Saleem, M., Santamarina Rios, C., Santonico, R., Sekula, S. J., Serin, L., Simak, V., Simic, Lj, Solfaroli Camillocci, E., Stupak, J., Takahashi, Y., Tani, K., Unel, G., Vorobel, V., Vossebeld, J. H., Vuillermet, R., Wahlen, H., Watson, A. T., Wong, W. C., Xie, S., Yang, Z., Zhao, L., Zhao, Z.
• Format: Article
• Language: English
• Subjects: Astronomy; Astrophysics and Cosmology; Collisions (Nuclear physics); Confidence intervals; Detectors; Elementary Particles; Hadrons; Heavy Ions; Large Hadron Collider; Luminosity; Measurement Science and Instrumentation; Muons; Nuclear Energy; Nuclear Physics; Particle accelerators; Particle collisions; Physics; Physics and Astronomy; Protons; Quantum Field Theories; Quantum Field Theory; Quarks; Regular Article - Experimental Physics; Searching; Standard model (particle physics); String Theory; Transverse momentum
• ISSN: 1434-6044; 1434-6052
• DOI: 10.1140/epjc/s10052-012-2151-6

The results of a search for the production of second generation scalar leptoquarks are presented for final states consisting of either two muons and at least two jets or a muon plus missing transverse momentum and at least two jets. A total of 1.03 fb −1 integrated luminosity of proton-proton collision data produced by the Large Hadron Collider at and recorded by the ATLAS detector is used for the search. The event yields in the signal regions are found to be consistent with the Standard Model background expectations. The production of second generation leptoquarks is excluded for a leptoquark mass m LQ