Measurement of the t t ¯ $$ \mathrm{t}\overline{\mathrm{t}} $$ production cross section in the eμ channel in proton-proton collisions at s = 7 $$ \sqrt{s}=7 $$ and 8 TeV

Autor: Carlo Battilana, Viacheslav Bunichev, Mikko Voutilainen, Stefaan Tavernier, Daniel Claes, Renjie Wang, Milos Dordevic, Miguel Vidal Marono, Gabriella Pugliese, Altan Cakir, Alberto Escalante del Valle, Kenneth Bloom, Pietro Govoni, Gervasio Gomez, Maximilian Pérez Prada, Arie Bodek, Mikhail Dubinin, Ivan Marchesini, Edmilson Manganote, Chang-Seong Moon, Joanne Cole, GIULIA D'IMPERIO, Ted Kolberg, Ahmed Ali Abdelalim, Guenakh Mitselmakher, Lesya Shchutska, Luca Pacher, Colin Bernet, Devdatta Majumder, Caglar Zorbilmez, Lorenzo Viliani, Wesley Smith, Krzysztof Doroba, Erhan Gülmez, Fabrizio Palla, Valentina Sola, Matthias Schröder, Cristina Riccardi, Natalia Lychkovskaya, Manas Maity, Sami Lehti, Valentin Geisler-Knünz, Badder Marzocchi, Borislav Pavlov, Fred Stober, Luke Kreczko, Julio Celso Borello Vargas, Jan Krolikowski, Damir Devetak, Begona De la Cruz, Jan Steggemann, Stefano Belforte, Nazar Bartosik, Raghav Kunnawalkam Elayavalli, Márton Bartók, Antonio Branca, Shahram Rahatlou, Richard Barbieri, Daniele Fasanella, Ijaz Ahmed, Ramandeep Kumar, Nadia Pastrone, Heiner Tholen, Muhammad Ahmad, Konstantin Androsov, Arun Kumar, Aysel Kayis Topaksu, Artur Kalinowski, Andreas Pfeiffer, Giuseppe Della Ricca, Lucia Silvestris, Christian Scharf, Joern Schwandt, Christopher Tully, Luigi Calligaris, Shimaa AbuZeid, Diego Ciangottini, Francisco Javier Cuevas Maestro, Sunil Bansal, Alexander Belyaev, Roman Kogler, Andrea Giammanco, Marco Toliman Lucchini, Guenther Dissertori, Norbert Neumeister, Sara Alderweireldt, Francesca Cavallari, Paolo Maria Montagna, José María Hernández Calama, Efe Yazgan, Hannsjörg Weber, Sinan Sagir, Tomas Lindén, Halil Saka, Luca Cadamuro, John Stupak III, Florencia Canelli, Manfred Krammer, Cesar Augusto Bernardes, Qiang Li, Ali Fahim, Saeid Paktinat mehdiabadi, Jovan Milosevic, Nicolò Trevisani, Nishu Nishu, Elisabetta Gallo, Tapio Lampén, Dermot Moran, Md Naimuddin, Leonid Levchuk, Claudio Grandi, Enrique Calvo Alamillo, Giovanni Petrucciani, Dayong Wang, Ashim Roy, Alfredo Castaneda Hernandez, Alessandro Di Mattia, Marco Zanetti, Yue Shi Lai, Diego Figueiredo, Sertac Ozturk, Cristina Botta, Martti Raidal, Stefan Piperov, Fedor Ratnikov, Michał Szleper, Viesturs Veckalns, Paolo Giacomelli, Jay R. Dittmann, Yalcin Guler, Alberto Hernandez Almada, Marcin Konecki, Franco Ligabue, Vitaliano Ciulli, Martina Malberti, Nicolò Tosi, James Wetzel, Jochen Schieck, Silvia Goy Lopez, Nikolaos Manthos, Xin Shi, Salvatore Buontempo, Émilien Chapon, Stéphane PERRIES, JUAN ALCARAZ MAESTRE, Antonio Vilela Pereira, Zhenbin Wu, Maria Clemencia Mora Herrera, Ilaria Vai, Alessandro Gaz, Sandeep Bhowmik, Raffaello D'Alessandro, Andre Sznajder, Sergei Shmatov, Pedro Galli Mercadante, Michael Wang, Jia Fu Low, Peter Hobson, Rebeca Gonzalez Suarez, Andrea Massironi, Jose Ruiz, Mario Pelliccioni, Caroline Collard, Alexei Safonov, WILLIAM FORD, Jeson Jacob, Wuming Luo, Junghwan Goh, German Ruben Martinez, David Fehling, Rocky Garg, Stephen Mrenna, Panja Luukka, Pablo García Abia, Saranya Samik Ghosh, Caterina Vernieri, Fonseca de Souza Sandro, Mohd Adli MD Ali, Maurizio Pierini, Aurelijus Rinkevicius, Yasser Assran, Frank Geurts, Isabel Josa Mutuberria, Junquan Tao, Paul Kyberd, Ece ASILAR, David D'Enterria, Adish Vartak, Patrick Dunne, Arabella Martelli, Iban Cabrillo, Ezio Torassa, Eric CONTE, Jorma Tuominiemi, James Keaveney, Andrey Popov, Jehad Mousa, Hua Wei, Martin Grunewald, Paolo Spagnolo, Nicholas Wardle, Robert Klanner, Frank Golf, Isidro González Caballero, Mario Merola, Crisostomo Sciacca, Oscar Gonzalez Lopez, Anna Cimmino, Hengne Li, Tahys Janssen, Pete Markowitz, Qiao Xu, Victor Kim, Robert Bainbridge, Andrea Rizzi, Klaus Rabbertz, Florent Lacroix, Todd Adams, Francesco Fiori, Luigi (Gigi) Rolandi, Andrew Ivanov, Massimo Casarsa, Ioannis Papadopoulos, Greg Landsberg, Sara Fiorendi, Arsen Khvedelidze, Jennifer Ngadiuba, Francesca Ricci-Tam, Ivan Heredia de la Cruz, Andrea Venturi, Bingxuan Liu, Marina Chadeeva, Vuko Brigljević, Vittorio Raoul Tavolaro, Terence Libeiro, Pablo Martinez Ruiz del Arbol, Mohsen Khakzad, Ulascan Sarica, Reddy Pratap Gandrajula, Luca Malgeri, Federico Nguyen, Nicolo Cartiglia, Andrew Brinkerhoff, Lea Caminada, Natalie Heracleous, Leandar Litov, Andrea Gozzelino, Arnd Meyer, Seth Zenz, Sergey Senkin, Alberto Ruiz Jimeno, Michele Gallinaro, Daniele Pedrini, J B Singh, Maria Cruz Fouz Iglesias, Patrizia Barria, Pietro Faccioli, Michail Bachtis, Muhammad Gul, Michele Arneodo, José Flix Molina, Javier Fernandez Menendez, François Lagarde, Alexander Tapper, Maciej Gorski, George Alverson, Lev Dudko, Raffaella Radogna, Karl Ecklund, Ali Harb, Salvatore Costa, Michael Mooney, Yacine Haddad, Paolo Meridiani, Ignacio Redondo, Edgar Carrera Jarrin, Gautier Hamel de Monchenault, Salvatore Rappoccio, Roberta Arcidiacono, Gerrit Van Onsem, Bora Akgun, Thomas Reis, Kunal Kothekar, Anna Colaleo, Lutz Feld, Varun Sharma, Sylvie Braibant-Giacomelli, Joel Goldstein, Paolo Azzurri, Piotr Zalewski, Elsayed Salama, Cristina TUVE', Benedikt Vormwald, Ram Krishna Sharma, Javier Mauricio Duarte, Andreas Hinzmann, KAI-FENG CHEN, Matthias Kasemann, Manfred Paulini, Kevin Lannon, Mithat Kaya, Michael Tytgat, Christian Autermann, Myriam Schönenberger, Florian Beaudette, Sandra Malvezzi, Nuno Leonardo, Jesus Marco de Lucas, Maxim Titov, Laurent Forthomme, Luca Lista, Jose Enrique Palencia Cortezon, Krzysztof Piotrzkowski, Rainer Wallny, Pietro Vischia, Schoefbeck Robert, Maria Isabel Pedraza Morales, Tae Jeong Kim, Marco Pieri, Sunil Manohar Dogra, Shabnam Jabeen, Guido Emilio Tonelli, Luiz Mundim, Jorgen D'Hondt, Maria Cepeda, Yuri Andreev, Salvatore My, Norraphat Srimanobhas, Dimitri Bourilkov, Silvio Donato, Deborah Pinna, Morgan Lethuillier, Soureek Mitra, Santiago Folgueras, Sergio Novaes, Antonio Delgado Peris, Amina Zghiche, Pieter Everaerts, Jeffrey Roskes, DAVID ROMERO ABAD, André David Tinoco Mendes, Olga Evdokimov, Pierluigi Bortignon, Shubhanshu Chauhan, Simone Gennai, Luca Brianza, Freya Blekman, Valentina Gori, Raffaele Gerosa, Geoffrey Hall, Marco Paganoni, Marta Felcini, Giacomo ORTONA, Patrice Verdier, Andrei Gritsan, Mercedes Miñano Moya, Marko Dragicevic, Giovanni Zevi Della Porta, Steven Worm, Cristóvão Da Cruz e Silva, Martin Erdmann, Antonio Perez-Calero Yzquierdo, Viola Sordini, Michal Bluj, Roberto Covarelli, Stephanie BARRILLON, Daniel Bloch, Mojtaba Mohammadi Najafabadi, Joao Seixas, Dilson De Jesus Damiao, Hasan Ogul, Arthur Moraes, Lucas Taylor, Vyacheslav Klyukhin, Francisco Matorras, Mara Soares, FERHAT OZOK, Natalia Korneeva, Ilse Krätschmer, Luca Scodellaro, Marino Missiroli, Jan-Frederik Schulte, Fotios Ptochos, Helen Heath, Wolfgang Waltenberger, Zuhal Seyma Demiroglu, Camilo Carrillo Montoya, Debarati Roy, Alberto Zucchetta, João Rodrigues Antunes, Ralf Ulrich, Guillelmo Gomez-Ceballos, Kadri Ozdemir, Patrizia Azzi, Benjamin Kilminster, Lauri Wendland, Nikola Godinovic, Vladimir Gavrilov, Johannes Haller, Konstantinos Theofilatos, Eliza Melo da Costa, Andrea Davide Benaglia, Jesus Puerta Pelayo, Monica Vazquez Acosta, Ajay Kumar, Ram Krishna Dewanjee, Christophe Delaere, Sudarshan Paramesvaran, Simon Regnard, YEE HSIUNG, Aaron Dominguez, Nicola Pozzobon, Emanuele Usai, Matthew Herndon, Sasa Micanovic, Alberto Belloni, Piet Verwilligen, Livio Fano', Mariana Shopova, Fabio Ravera, Mauro Donega, Abideh Jafari, Federico De Guio, Luigi Benussi, Jorge Rodriguez, Oliver Gutsche, Ali Celik, Nicola Amapane, Mauro Emanuele Dinardo, EMINE GÜRPINAR GÜLER, PAO-TI CHANG, Emilio Meschi, Thiago Rafael Fernandez Perez Tomei, Stefano Colafranceschi, Sudhir Malik, Pedro Manuel Vieira de Castro Ferreira da Silva, Clemens Lange, Bożena Boimska, Giacomo Sguazzoni
Rok vydání: 2016
Předmět:
Zdroj: Journal of High Energy Physics. 2016
ISSN: 1029-8479
Popis: The inclusive cross section for top quark pair production is measured in proton-proton collisions at sqrt(s) = 7 and 8 TeV, corresponding to 5.0 and 19.7 invers-femtobarns, respectively, with the CMS experiment at the LHC. The cross sections are measured in the electron-muon channel using a binned likelihood fit to multi-differential final state distributions related to identified b quark jets and other jets in the event. The measured cross section values are 173.6 +/- 2.1 (stat) +4.5-4.0 (syst) +/- 3.8 (lumi) pb at sqrt(s) = 7 TeV, and 244.9 +/- 1.4 (stat) +6.3-5.5 (syst) +/- 6.4 (lumi) pb at sqrt(s) = 8 TeV, in good agreement with QCD calculations at next-to-next-to-leading-order accuracy. The ratio of the cross sections measured at 7 and 8 TeV is determined, as well as cross sections in the fiducial regions defined by the acceptance requirements on the two charged leptons in the final state. The cross section results are used to determine the top quark pole mass via the dependence of the theoretically predicted cross section on the mass, giving a best result of 173.8 +1.7-1.8 GeV. The data at sqrt(s) = 8 TeV are also used to set limits, for two neutralino mass values, on the pair production of supersymmetric top squarks with masses close to the top quark mass.
Databáze: OpenAIRE