Measurement of differential top-quark-pair production cross sections in pp collisions at

• Published in: The European physical journal. C, Particles and fields Vol. 73; no. 3; pp. 1 - 29
• Main Authors: Suarez Gonzalez, J., Maes, M., Olbrechts, A., Mohammadi, A., Reis, T., Walsh, S., Hammad, G. H., Nogima, H., Iaydjiev, P., Dimitrov, A., Avila, C., Sanabria, J. C., Antunovic, Z., Attikis, A., Eerola, P., Choudhury, S., Daci, N., Salerno, R., Bloch, D., Juillot, P., Anagnostou, G., Zhukov, V., Kleinwort, C., Schmidt, R., Sen, N., Walsh, R., Peiffer, T., Schum, T., Dierlamm, A., Sikler, F., Ganguly, S., Khakzad, M., Safarzadeh, B., Brigliadori, L., Gallo, E., Kanishchev, K., Pazzini, J., Ratti, S. P., Kraan, A., Soffi, L., Maselli, S., Son, T., Qazi, S., Szleper, M., Moisenz, P., Vlasov, E., Dremin, I., Vinogradov, A., Bayshev, I., Volkov, A., Garcia-Abia, P., Fernandez, M., Botta, C., Mulders, M., Wöhri, H. K., Urscheler, C., Chen, K. F., Lei, Y. J., Sonmez, N., Goldstein, J., Vazquez Acosta, M., Bose, T., Tsang, K. V., Mall, O., Tripathi, M., Plager, C., Clare, R., Gary, J. W., Hanson, G., Letts, J., Justus, C., Koay, S. A., Richman, J., Lykken, J., Furic, I. K., Low, J. F., Matchev, K., Linn, S., Gleyzer, S. V., Hagopian, S., Kenny Iii, R. P., Busza, W., Luckey, P. D., Rudolph, M., Yoon, A. S., De Benedetti, A., Kumar, A., Lusito, L., Lopes Pegna, D., Safdi, B., Brownson, E., Rekovic, V., Thomas, S., Hollingsworth, M., York, A., Kamon, T., Safonov, A., Snook, B., Ledovskoy, A., Klabbers, P.
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer-Verlag 01.03.2013
• Subjects: Astronomy; Astrophysics and Cosmology; Channels; Collisions; Cross sections; Decomposition; Deviation; Elementary Particles; Hadrons; Heavy Ions; Large Hadron Collider; Mathematical models; Measurement Science and Instrumentation; Nuclear Energy; Nuclear Physics; Physics; Physics and Astronomy; Quantum Field Theories; Quantum Field Theory; Quarks; Regular Article - Experimental Physics; String Theory
• ISSN: 1434-6044; 1434-6052
• DOI: 10.1140/epjc/s10052-013-2339-4

Normalised differential top-quark-pair production cross sections are measured in pp collisions at a centre-of-mass energy of 7 TeVat the LHC with the CMS detector using data recorded in 2011 corresponding to an integrated luminosity of 5.0 fb −1 . The measurements are performed in the lepton+jets decay channels (e+jets and μ +jets) and the dilepton decay channels ( , μ + μ − , and μ ± e ∓ ). The differential cross section is measured as a function of kinematic properties of the final-state charged leptons and jets associated to b quarks, as well as those of the top quarks and the system. The data are compared with several predictions from perturbative QCD calculations up to approximate next-to-next-to-leading-order precision. No significant deviations from the standard model are observed.