Measurement of the tt̄ production cross section in pp collisions at √s=7 TeV using the kinematic properties of events with leptons and jets : The CMS Collaboration Chatrchyan, S Khachatryan, V Sirunyan, A. M Tumasyan, A Adam, W Bergauer, T Dragicevic, M Erö, J Fabjan, C Friedl, M Frühwirth, R Ghete, V.M Hammer, J Hänsel, S Hoch, M Hörmann, N Hrubec, J Jeitler, M Kiesenhofer, W Krammer, M Liko, D Mikulec, I Pernicka, M Rohringer, H Schöfbeck, R Strauss, J Taurok, A Teischinger, F Wagner, P Waltenberger, W Walzel, G Widl, E Wulz, C.-E Mossolov, V Shumeiko, N Suarez Gonzalez, J Bansal, S Benucci, L de Wolf, E.A Janssen, X Maes, J Maes, T Mucibello, L Ochesanu, S Roland, B Rougny, R Selvaggi, M van Haevermaet, H van Mechelen, P van Remortel, N Blekman, F Blyweert, S D'Hondt, J Devroede, O Suarez, R.G Kalogeropoulos, A Maes, M van Doninck, W van Mulders, P van Onsem, G.P villella, I Charaf, O Clerbaux, B De Lentdecker, G Dero, V Gay, A.P.R Hammad, G.H Hreus, T Marage, P.E Thomas, L Vander Velde, C Vanlaer, P Adler, V Cimmino, A Costantini, S Grunewald, M Klein, B Lellouch, J Marinov, A Mccartin, J Ryckbosch, D Thyssen, F Tytgat, M Vanelderen, L Verwilligen, P Walsh, S Zaganidis, N Basegmez, S Bruno, G Caudron, J Ceard, L Gil, E.C de Favereau de Jeneret, J Delaere, C Favart, D Giammanco, A Grégoire, G Hollar, J Lemaitre, V Liao, J Militaru, O Ovyn, S Pagano, D Pin, A Piotrzkowski, K Schul, N Beliy, N Caebergs, T Daubie, E Alves, G.A de Jesus Damiao, D Pol, M.E Souza, M.H.G Carvalho, W Da Costa, E.M De Oliveira Martins, C Fonseca De Souza, S Mundim, L Nogima, H Oguri, V Prado Da Silva, W.L Santoro, A Silva Do Amaral, S.M Sznajder, A Bernardes, C.A Dias, F.A Fernandez Perez Tomei, T.R Gregores, E.M Lagana, C Marinho, F Mercadante, P.G Novaes, S.F Padula, S.S Darmenov, N Genchev, V Iaydjiev, P Piperov, S Rodozov, M Stoykova, S Sultanov, G Tcholakov, V Trayanov, R Dimitrov, A Hadjiiska, R Karadzhinova, A Kozhuharov, V Litov, L Mateev, M Pavlov, B Petkov, P Bian, J.G Chen, G.M Chen, H.S Jiang, C.H Liang, D Liang, S Meng, X Tao, J Wang, J Wang, J Wang, X Wang, Z Xiao, H Xu, M Zang, J Zhang, Z Ban, Y Guo, S Guo, Y Li, W Mao, Y Qian, S.J Teng, H Zhu, B Zou, W Cabrera, A Gomez Moreno, B Ocampo Rios, A.A Osorio Oliveros, A.F Sanabria, J.C Godinovic, N Lelas, D Lelas, K Plestina, R Polic, D Puljak, I Antunovic, Z Dzelalija, M Brigljevic, V Duric, S Kadija, K Morovic, S Attikis, A Galanti, M Mousa, J Nicolaou, C Ptochos, F Razis, P.A Finger, M Finger Jr., M Assran, Y Khali, S Mahmoud, M.A Hektor, A Kadastik, M Müntel, M Raidal, M Rebane, L Azzolini, V Eerola, P Fedi, G Czellar, S Härkönen, J Heikkinen, A Karimäki, V Kinnunen, R Kortelainen, M.J Lampén, T Lassila-Perini, K Lehti, S Lindén, T Luukka, P Mäenpää, T Tuominen, E Tuominiemi, J Tuovinen, E Ungaro, D Wendland, L Banzuzi, K Korpela, A Tuuva, T Sillou, D Besancon, M Choudhury, S Dejardin, M Denegri, D Fabbro, B Faure, J.L Ferri, F Ganjour, S Gentit, F.X Givernaud, A Gras, P Hamel de Monchenault, G Jarry, P Locci, E Malcles, J Marionneau, M Millischer, L Rander, J Rosowsky, A Shreyber, I Titov, M Verrecchia, P Baffioni, S Beaudette, F Benhabib, L Bianchini, L Bluj, M Broutin, C Busson, P Charlot, C Dahms, T Dobrzynski, L Elgammal, S Granier de Cassagnac, R Haguenauer, M Miné, P Mironov, C Ochando, C Paganini, P Sabes, D Salerno, R Sirois, Y Thiebaux, C Wyslouch, B Zabi, A Agram, J.-L Andrea, J Bloch, D Bodin, D Brom, J.-M Cardaci, M Chabert, E.C Collard, C Conte, E Drouhin, F Ferro, C Fontaine, J.-C Gelé, D Goerlach, U Greder, S Juillot, P Karim, M Le Bihan, A.-C Mikami, Y Van Hove, P Fassi, F Mercier, D Baty, C Beauceron, S Beaupere, N Bedjidian, M Bondu, O Boudoul, G Boumediene, D Brun, H Chasserat, J Chierici, R Contardo, D Depasse, P El Mamouni, H Fay, J Gascon, S Ille, B Kurca, T Le Grand, T Lethuillier, M Mirabito, L Perries, S Sordini, V Tosi, S Tschudi, Y Verdier, P Lomidze, D Anagnostou, G Edelhoff, M Feld, L Heracleous, N Hindrichs, O Jussen, R Klein, K Merz, J Mohr, N Ostapchuk, A Perieanu, A Raupach, F Sammet, J Schael, S Sprenger, D Weber, H Weber, M Wittmer, B Ata, M Bender, W Dietz-Laursonn, E Erdmann, M Frangenheim, J Hebbeker, T Hinzmann, A Hoepfner, K Klimkovich, T Klingebiel, D Kreuzer, P Lanske, D Magass, C Merschmeyer, M Meyer, A Papacz, P Pieta, H Reithler, H Schmitz, S.A Sonnenschein, L Steggemann, J Teyssier, D Bontenackels, M Davids, M Duda, M Flügge, G Geenen, H Giffels, M Haj Ahmad, W Heydhausen, D Kress, T Kuessel, Y Linn, A Nowack, A Perchalla, L Pooth, O Rennefeld, J Sauerland, P Stahl, A Thomas, M Tornier, D Zoeller, M.H Aldaya Martin, M Behrenhoff, W Behrens, U Bergholz, M Bethani, A Borras, K Cakir, A Campbell, A Castro, E Dammann, D Eckerlin, G Eckstein, D Flossdorf, A Flucke, G Sharif University of Technology