Measurement of jet multiplicity distributions in $$\mathrm {t}\overline{\mathrm {t}}$$ t t ¯ production in pp collisions at $$\sqrt{s} = 7\,\text {TeV} $$ s = 7 TeV

Autor: E. W. Vaandering, Pawandeep Jandir, Samim Erhan, S. König, André Holzner, Andreas Hinzmann, Werner Sun, Joschka Lingemann, Nicholas Cripps, Pierre Juillot, Alexander Schmidt, Nadir Daci, Felix Bachmair, Cory Fantasia, Sarah Kate Boutle, Matt J. Jarvis, Marcin Konecki, Nathaniel Pastika, Georgia Karapostoli, Ioannis Evangelou, Joseph Goodell, J. W. Gary, Sergey Troshin, P. Martinez Ruiz del Arbol, Alexander Gude, Chetluru, Hanno Perrey, Manoj Jha, Karjavin, Damir Lelas, Stephen Sanders, James Faulkner, Jacopo Bernardini, Veeraraghavan, Jay Hauser, A. Vilela Pereira, M. Gosselink, Mia Tosi, Helio Nogima, W. H. Smith, Marco Meschini, R. Doesburg, L. Romero, Prashant Shukla, Emanuela Barberis, Avraham Yagil, Nicolo Magini, Simon Kwan, Michael Dittmar, Nadia Pastrone, J. G. Shiu, Artur Kalinowski, Y. Chao, Junquan Tao, E. Salvati, André Rosowsky, Andrew Ivanov, Roberto Castello, Alberto Orso Maria Iorio, Mossolov, Lesya Shchutska, Andrea Massironi, M. Meneghelli, E. Brownson, Murzin, Piotr Traczyk, J. P. Alexander, Lemaitre, Martti Raidal, J. A. Brochero Cifuentes, Frank Raupach, Jacob Linacre, Bernard Ille, Ali Mohammadi, Christian Hartl, Dinko Ferencek, Olga Evdokimov, Junghwan Goh, J. Gonzalez Sanchez, Monika Sharma, S. Sarkar, Tiziano Rovelli, Daniela Bortoletto, Emmanuel Contreras-Campana, Pamela Klabbers, H. Gamsizkan, Richard Hall-Wilton, Elizabeth Sexton-Kennedy, Dezso Horvath, Livio Fanò, Alexander Mott, P. E. Karchin, Elisabetta Gallo, M. Lo Vetere, Francesco Navarria, L. K. Gibbons, Giovanni Franzoni, Evrim Ersin Kangal, R. Frazier, Matthias Wolf, Paolo Ronchese, Alessia Tricomi, Badder Marzocchi, Nikolay Tyurin, Emine Gurpinar, Tomasz Frueboes, Burin Asavapibhop, Aram Avetisyan, Ulysses Grundler, Sabino Meola, Roberto Covarelli, Sergio Cittolin, Julien Caudron, Armin Burgmeier, Jared Sturdy, A. Bornheim, Sandra S. Padula, Paolo Vitulo, William J Spalding, A. Kumar, P. D. Dauncey, A. Castro, J. A. Gomez, Jay Roberts, Stefano Bianco, Sanjay Kumar Swain, Marc M Baarmand, Javier Duarte, H. Mendez, Alberto Ruiz-Jimeno, H. S. Chen, Yury Ivanov, Andre Sznajder, Matthew Nguyen, Luciano Orsini, Luca Pacher, Christopher George Tully, Hella Snoek, Cristina Ferro, Alexander Belyaev, P. Fabbricatore, Hermine Katharina Wöhri, Yuri Gershtein, Daniele Trocino, Silvia Maselli, David Sabes, Ali Fahim, Gobinda Majumder, Khachatryan, Emmanuelle Perez, E. Casimiro Linares, Matthias Edelhoff, A. M. Guler, Cristina Riccardi, C. Kottachchi Kankanamge Don, Claude Nuttens, Nathan Kellams, Zhukov, Maroussov, Esa Tuovinen, Pedro G Mercadante, A-C Le Bihan, Claire Shepherd-Themistocleous, Igor Katkov, Benoit Roland, Daniel Denegri, J. E. Ramirez Vargas, Roumyana Hadjiiska, Igor Smirnov, Zhukova, Jaakko Härkönen, C. Cowden, Kerstin Hoepfner, K. M. Chan, Ferhat Ozok, Andreas Nürnberg, S. A. Schmitz, Roko Plestina, Mario Pelliccioni, Joachim Mnich, Khotilovich, Andreas Mussgiller, Bryan Dahmes, Roman Ryutin, Anne Dabrowski, Hans-Christian Kaestli, Romain Rougny, Stefano Ragazzi, Jane Nachtman, Donald Belknap, Winston Ko, Dutta, R. Gonzalez Suarez, Sergio F Novaes, Didar Dobur, S. Goy Lopez, Kadir Ocalan, Chi Lin, Savrin, G. Bianchi, Hartmut Stadie, Claudio Campagnari, Teppo Mäenpää, R. Mankel, Wolfgang Lohmann, Dirk Ryckbosch, Andrea Schizzi, Fotios Ptochos, Chris Farrell, Bhatnagar, E. Barlas, Riccardo Bellan, Michael Gardner, T. Geralis, Jaehyeok Yoo, Jean-Baptiste Sauvan, Gigi Rolandi, W. Hopkins, Michael Mooney, Justin Hugon, G. L. Pinna Angioni, T. Y. Ling, Tulika Bose, Wuming Luo, Veszpremi, Morgan Lethuillier, Charles Dietz, Yasar Onel, Raymond Patrick Kenny Iii, C. Lazaridis, Pierluigi Paolucci, Sertac Ozturk, Robert Hirosky, Ren-Yuan Zhu, Pascal Vanlaer, Richard Breedon, L. S. Durkin, Souvik Das, C. Fabjan, Louis Sgandurra, Natalia Lychkovskaya, A. Gurtu, Timo Peltola, Michael Schmitt, Carlo Rovelli, Fedor Ratnikov, Silvio Donato, Ezio Torassa, Renato Potenza, Harry Cheung, Peter Schleper, Zhen Hu, Keith Ulmer, Suresh C Tonwar, Sylvie Braibant-Giacomelli, W. Haj Ahmad, Golovtsov, Clara Jorda, Claudio Grandi, Zoltan Laszlo Trocsanyi, Dennis Klingebiel, Sébastien Gadrat, J. Conway, Mayda Velasco, D. Del Re, Stefano Argiro, Alexey Ferapontov, V. E. Bazterra, P. Kyberd, P. Jindal, Giovanni Abbiendi, Leonard Spiegel, Jy Kim, Francesco Romeo, Robert Klanner, Camille Beluffi, Andrea Benaglia, Paul Baillon, Austin Ball, Batool Safarzadeh, S. M. Spanier, D. Winn, E. Eskut, Artur Apresyan, Nathaniel Odell, Marc Besancon, Dinyar Rabady, J. Ellison, Bibhuti Parida, Wolfram Dietrich Zeuner, Sa. Jain, Sergey Rusakov, David Futyan, Malgorzata Kazana, James Zabel, Blobel, Otilia Militaru, Filip Moortgat, Konstantinos Kousouris, Joshua Bendavid, M. Feindt, Jose Chinellato, Richard Cavanaugh, F. Nowak, Lukas Vanelderen, J. Ilic, Rishi Patel, Y. 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Shivpuri, Kenichi Hatakeyama, Anna Woodard, Petr Levchenko, Marco Costa, Nikolai Golubev, Natale Demaria, G. P. Van Onsem, O. Gonzalez Lopez, Sanjay Arora, A. Van Spilbeeck, Claes, Sara Alderweireldt, Andris Skuja, Sébastien Brochet, Ana Yaiza Rodríguez-Marrero, Ivica Puljak, Hans Reithler, Ben Bylsma, Roberto Tenchini, Kadri Ozdemir, Heriberto Castilla-Valdez, Adam Dishaw, Claudia Seitz, Christian Böser, S. Fonseca De Souza, Innocente, Giuseppe Barbagli, James Keaveney, Hui Li, Salvatore My, M. Gabusi, James Dolen, Suyong Choi, Etiennette Auffray, Ignacio Redondo, Benjamin Stieger, Yurii Maravin, Manoj Sharan, David Petyt, Dan Knowlton, W. Van Doninck, Xin Shi, Piero Giubilato, Philip Symonds, Z. Wang, Zhaoxia Meng, Chiara Mariotti, M. Segala, S. Tkaczyk, David Stuart, Alice Mignerey, J. Sekaric, J. Fernandez Menendez, Charles Maguire, Amr Radi, Michal Simon, Metin Yalvac, Silvia Ochesanu, Daniel Noonan, M. Chan, Azeddine Kasmi, Giuseppe Codispoti, M. Guchait, Pavel Sorokin, Seth Cooper, S. Williamson, H. Held, U. Tamponi, Keith Rose, Mingshui Chen, Nikita Beliy, S. Paktinat Mehdiabadi, Marco Toliman Lucchini, H. El Mamouni, Mhg Souza, Yasser Assran, Anna Teresa Meneguzzo, Sten Luyckx, Doga Gulhan, Louis Lyons, Anders Ryd, Gavin Davies, Stephane Perries, Carsten Heidemann, Costas Foudas, Junhui Liao, Devdatta Majumder, Matthew Chasco, Andreas Kornmayer, Luigi Benussi, A. Khan, Gouranga Kole, A. Starodumov, Alexandre Léonard, Jacobo Konigsberg, R. Gray, S. Mukherjee, Marco-Andrea Buchmann, Freya Blekman, Giuseppe Zito, Ilse Krätschmer, David Michael Morse, G. Hamel de Monchenault, Aleko Khukhunaishvili, W. Andrews, Efstathios Stiliaris, Q. Li, Tutanon Sinthuprasith, Chayanit Asawatangtrakuldee, Yetkin Yilmaz, Mark Olschewski, Katja Klein, M. Niegel, R. Loveless, R. F. Harr, L. Muniz, Ivan Glushkov, Paul Papacz, D. W. Jang, P. Squillacioti, Dimitri Bourilkov, Matteo Marone, R. Wilken, Jeremy Mans, D. E. Pellett, Konstantinos Theofilatos, Sandor Czellar, Manuel Giffels, Pavel Bunin, Matthew Snowball, R Dell Orso, Guo-Ming Chen, Arabella Martelli, Muhammad Ahmad, Felix Hoehle, Suman Bala Beri, Helena Bialkowska, Gigi Cappello, Leonard Apanasevich, M. Vander Donckt, Alexey Svyatkovskiy, M. Stein, Evangelos Paradas, Dean Horton, Kevin Burkett, N. De Filippis, Giuseppe Antonio Pierro, Jamila Bashir Butt, Matthias Komm, Scott Thomas, Piero Giorgio Verdini, Enrico Robutti, Andrew Whitbeck, Abdulla Abdulsalam, Aruna Nayak, Michael Plagge, J. Anderson, L. Rebane, I. P.J. Shipsey, Gervasio Gomez, A. Delgado Peris, Mauro Donegà, Gianluca Petrillo, P. Siegrist, Ernesto Migliore, Alin Titus Serban, Y. Musienko, Javier Santaolalla, Ettore Focardi, Hans-Jürgen Simonis, Todd Adams, Wit Busza, S. Khalatyan, Rachel Yohay, Dominique Gigi, Gianni Zumerle, Richard Barbieri, M. Serin, Derek Barge, Peter Kreuzer, Kurtis F Johnson, Sergey Vavilov, M. Voutilainen, P. M. Ribeiro Cipriano, M. C. 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Schott, J D Hondt, Alicia Calderon, Arno Heister, Seyed Mohsen Etesami, Jürg Eugster, Sandra Oliveros, Alfredo Gurrola, Christopher Brew, Lothar At Bauerdick, Ketino Kaadze, Christian Contreras-Campana
Rok vydání: 2014
Předmět:
Zdroj: The European Physical Journal C. 74
ISSN: 1434-6052
1434-6044
Popis: The normalised differential top quark-antiquark production cross section is measured as a function of the jet multiplicity in proton-proton collisions at a centre-of-mass energy of 7 TeV at the LHC with the CMS detector. The measurement is performed in both the dilepton and lepton + jets decay channels using data corresponding to an integrated luminosity of 5.0 inverse femtobarns. Using a procedure to associate jets to decay products of the top quarks, the differential cross section of the t t-bar production is determined as a function of the additional jet multiplicity in the lepton + jets channel. Furthermore, the fraction of events with no additional jets is measured in the dilepton channel, as a function of the threshold on the jet transverse momentum. The measurements are compared with predictions from perturbative quantum chromodynamics and no significant deviations are observed.
Databáze: OpenAIRE