First observation of forward Z→bb¯ production in pp collisions at s=8 TeV

Autor: B. Schmidt, Vladimir Macko, David Chamont, Andrew Crocombe, Z. Mathe, Veronika Chobanova, I. Nasteva, Ivan Belyaev, A. Artamonov, F. Da Cunha Marinho, V. Salustino Guimaraes, T. A. Verlage, M. Boubdir, I. Shapoval, G. Carboni, T. E. Latham, R. Santacesaria, Mick Mulder, P. Henrard, Gerard Fernandez, John William Ronayne, Iwan Thomas Smith, Alex Birnkraut, D. E. Hutchcroft, J. H. Lopes, Andrey Tayduganov, Margarita Stepanova, J. Wimberley, T. J. V. Bowcock, A. Dzyuba, Egor Khairullin, V. Volkov, O. Yushchenko, O. De Aguiar Francisco, Lukas Gruber, R. Le Gac, V. Franco Lima, Yuezhe Yao, Julien Cogan, Jonas Rademacker, Malgorzata Pikies, A. Dovbnya, A. Lusiani, D. A. Milanes, J. J. Walsh, S. Blusk, Marco Adinolfi, P. Durante, F. Blanc, A. Fernandez Prieto, Emmy Gabriel, L. Garrido, Benedetto Gianluca Siddi, Christian Voß, R. Matev, M. Ramos Pernas, Kevin Maguire, Alessandro Camboni, Z. C. Huard, R. Lefèvre, Marianna Fontana, Daniel Patrick O'Hanlon, Matthew James Tilley, Jessica Prisciandaro, M. Winn, Varvara Batozskaya, W. Qian, Fedor Baryshnikov, C. Baesso, Jascha Peter Grabowski, A. Di Canto, Nathanael Farley, L. Carson, M. Witek, V. Shevchenko, C. Bozzi, Simon Nieswand, Valery Zhukov, A. Puig Navarro, Patrick Koppenburg, F. Kruse, Agnieszka Dziurda, Giulio Gazzoni, R. J. Barlow, Wojciech Kucewicz, S. Simone, Stephen M. Stahl, Marta Calvi, Christopher Betancourt, Simone Bifani, D. Hill, Maurizio Martinelli, M. Szczekowski, G. Tellarini, A. Satta, Sandro Cadeddu, Emanuele Michielin, M. Needham, Olga Morgunova, A. A. Alves, J. A. de Vries, N. Neufeld, Thomas N. Williams, Francesco Dettori, O. Maev, B. Storaci, Chung Nguyen-Mau, P. Di Nezza, S. Klaver, C. Satriano, Matteo Palutan, M. van Veghel, G. Auriemma, A. Contu, F. Meier, l. Soares Lavra, J. J. Saborido Silva, Olivier Leroy, Patrick Robbe, Thierry Gys, G. Graziani, S. Amerio, W. Wislicki, Markus Frank, Karlis Dreimanis, R. Calabrese, Francesca Dordei, L. Shekhtman, Andrea Mogini, Sofia Kotriakhova, A. Dosil Suárez, D. Melnychuk, R. McNulty, Tomasz Skwarnicki, Sebastian Bachmann, P. Krokovny, George Coombs, Eduardo Rodrigues, Michal Dziewiecki, C. Khurewathanakul, C. Santamarina Rios, L. Beaucourt, A. Falabella, G. Mancinelli, Biagio Saitta, Titus Mombächer, Tommaso Colombo, P. Rodriguez Perez, S. De Capua, Mika Vesterinen, David Gascon, Konstantin Schubert, I. Komarov, Igor Babuschkin, Johannes Albrecht, Malcolm John, P. Vazquez Regueiro, Basem Khanji, Y. Xie, Anna Lupato, Pavol Stefko, M. Ebert, Antonino Sergi, T. Boettcher, Jeremy Dalseno, Ia. Bezshyiko, Nikolay Nikitin, R. Niet, Cameron Thomas Dean, Hannah Louise Pullen, A. Vollhardt, Moritz Demmer, Kristian Alexander Zarebski, G. Martellotti, V. Obraztsov, Axel Kevin Kuonen, S. T. Harnew, M. Gandelman, C. Wallace, M. Lucio Martinez, Stephan Eisenhardt, G. D. Lafferty, Lorenzo Capriotti, R. Dzhelyadin, A. Lai, Carmelo D'Ambrosio, Jean François Marchand, J. A. Rodriguez Lopez, Thomas Blake, Oleg Stenyakin, Marco Santimaria, M. Tresch, H. Schindler, Marek Idzik, C. Fitzpatrick, Michael Alexander, Thomas Henry Hancock, Wojciech Krzemien, P. Ruiz Valls, D. Savrina, Luca Pescatore, D. Websdale, L. M. Garcia Martin, B. Couturier, P. Griffith, Andrea Mauri, Thomas Hadavizadeh, J. He, Yang Li, D. Martins Tostes, O. Steinkamp, Paolo Ciambrone, R. A. Fini, S. Easo, Miroslaw Firlej, R. Currie, G. Manca, O. Schneider, Adam Davis, Ana Trisovic, L. Del Buono, S. Monteil, Konstantinos Petridis, E. Gushchin, Serhii Koliiev, K. Wyllie, B. Pietrzyk, Alexandra Paige Rollings, Zhuoming Li, Albert Comerma-Montells, A. Jawahery, W. Sutcliffe, Marco Cattaneo, S. Hansmann-Menzemer, A. Schopper, M. Heß, Ivan Polyakov, Kevin Heinicke, C. Potterat, M. De Cian, P. E. L. Clarke, Victor Renaudin, P. Alvarez Cartelle, P. Campana, Paolo Carniti, Meril Reboud, Sebastien Ponce, A. Romero Vidal, M. van Beuzekom, Scott Ely, O. Grünberg, Maria Elena Stramaglia, Elnur Sadykhov, Sandra Amato, A. Bondar, Manuel Schiller, M. Merk, Y. H. Zheng, Denis Derkach, G. Simi, Murdo Traill, R. Mountain, Alexander Berezhnoy, Andrea Merli, S. Schael, F. Maciuc, Andrea Bizzeti, Lauren Douglas, Sebastien Valat, Nikita Beliy, Francis Toriello, A. Petrolini, A. Tsaregorodtsev, C. J. G. Onderwater, Maxime Vernet, Mark Hatch, Igor Bordyuzhin, Xia-Ji Liu, R. Wallace, F. Ferreira Rodrigues, M. Cruz Torres, R. B. Appleby, Daniel Berninghoff, Vincenzo Vagnoni, Alison Tully, A. C. dos Reis, Lars Eklund, E. S. Sepulveda, K. Belous, Jolanta Brodzicka, L. Tomassetti, Alexander Vagner, Vanessa Müller, Marco Petruzzo, Konrad Klimaszewski, Tatiana Likhomanenko, Luca Federici, T. Lesiak, B. Souza De Paula, Sheldon Stone, Karol Hennessy, Roger Forty, C. M. Costa Sobral, J. M. Yu, C. Barschel, Mark Richard James Williams, Arno Heister, Mikhail Zavertyaev, Matthew Kenzie, Marian Stahl, Nicoletta Belloli, S. Esen, C. Hadjivasiliou, D. Campora Perez, V. Kudryavtsev, Marcela Vitti, A. Ukleja, Ph. Charpentier, Alexander Malinin, X. Han, Yu. Guz, Andreas Weiden, Ziad Ajaltouni, D. R. Ward, Emilie Bertholet, Renato Quagliani, M. Charles, Laurent Dufour, Antonio Pellegrino, Stephane T'Jampens, J. Jalocha, Vlad-Mihai Placinta, A. Cook, Cedric Meaux, Daniel Martin Saunders, Jakub Moron, Simon Stemmle, D. Ferguson, Lucian Cojocariu, Francesco Bossu, C. Göbel, Nicola Neri, J. Molina Rodriguez, Mark Smith, M. Shapkin, Nikolay Bondar, Roman Greim, S. Roiser, Y. Shcheglov, E. Tournefier, Stanislav Poslavskii, E. Thomas, P. De Simone, S. Playfer, Matthieu Kecke, Federico Redi, A. Bertolin, Ph. Ghez, A. Sciubba, Florian Lemaitre, J. E. Andrews, Luca Minzoni, A. Semennikov, Xiao-Rui Lyu, T. Kvaratskheliya, E. Gersabeck, T. Nikodem, Wouter Hulsbergen, E. Santovetti, David Gerick, J. Ruiz Vidal, B. Spaan, L. Kravchuk, F. Stagni, Giulio Dujany, Louis Henry, F. Teubert, Margarete Schellenberg, David Loh, Frank Ferrari, A. Palano, Tomasz Szumlak, T. D. Nguyen, S.-F. Cheung, T. Britton, J. Closier, A. Massafferri, Kurt Rinnert, James Mwangi Kariuki, P. Spradlin, Pierre Billoir, B. R. Gruberg Cazon, J. Marks, M. Straticiuc, J. Lefrançois, Alessandro Cardini, Stefano Perazzini, Andrii Usachov, J. M. De Miranda, E. Polycarpo, Tatsuya Nakada, Olivier Göran Girard, G. Bencivenni, A. B. Rodrigues, C. Haen, William Parker, Tomasz Fiutowski, L. Zhang, Jan Buytaert, B. Sanmartin Sedes, M. Baalouch, Jennifer Brigitta Zonneveld, Konstantin Gizdov, Wiktor Byczynski, Kenneth Wraight, Tobias Tekampe, N. Skidmore, M. Plo Casasus, S.-G. Chitic, Dominik Stefan Mitzel, Preema Rennee Pais, J. Harrison, F. Polci, Vitalii Lisovskyi, Tatsiana Klimkovich, Georgios Chatzikonstantinidis, Samuel Maddrell-Mander, P. Collins, G. A. Cowan, Holger Stevens, Hang Yin, G. Ciezarek, R. Jacobsson, Slavomira Stefkova, A. Alfonso Albero, G. Wormser, Eluned Smith, W. Baldini, Roel Aaij, Mark Wilkinson, Roland Waldi, S. Gallorini, Claudio Gotti, Sophie Richards, B. Viaud, Dominik Müller, V. Syropoulos, Thibaud Humair, Paul Seyfert, C. Vázquez Sierra, N. Sagidova, L. Cassina, Ryan Calladine, S. Kandybei, Guy Wilkinson, Teng Li, A. Bursche, Timothy Evans, Paolo Gandini, Alessio Borgheresi, S. Ricciardi, Malte Hecker, R. Nandakumar, Laura Gavardi, Plamen Hristov Hopchev, S. Ogilvy, I. Raniuk, J. M. Otalora Goicochea, Abhijit Mathad, Wolfgang Funk, T. Kirn, V. Gibson, R. Vazquez Gomez, Davide Fazzini, Heather Mckenzie Wark, S. Stracka, T. Ruf, Vincenzo Battista, D. Galli, E. Luppi, Marina Artuso, Dmitrii Maisuzenko, P. M. Manning, Hans Dijkstra, R. Schwemmer, Maxim Borisyak, E. Cogneras, M. Sirendi, Davide Brundu, Matthew George Chapman, Christoph Frei, Nicola Serra, Emilie Maurice, P. Tsopelas, Arnaud Robert, C. Patrignani, V. Tisserand, M. Andreotti, Christian Färber, P. R. Li, C. Sanchez Mayordomo, Claudia Vacca, Samuel Coquereau, Alexey A. Petrov, Martino Borsato, William Barter, A. Bitadze, Timofei Maltsev, K. Carvalho Akiba, Angelo Carbone, Flavio Pisani, Bartlomiej Rachwal, Jaap Velthuis, M. Vieites Diaz, Andrew Beiter, C. Gaspar, A. Rogozhnikov, Jing Wang, A. Mazurov, J. Serrano, Alex Pearce, Barbara Sciascia, Boris Quintana, Lennaert Bel, Lucio Anderlini, R. Graciani Diaz, H. V. Cliff, Federico Alessio, Neville Harnew, L. M. Massacrier, S. Tolk, Christoph Langenbruch, U. Marconi, Maciej Pawel Szymanski, K. Kurek, Gianluigi Casse, Angelo Loi, Michael Kolpin, G. Lanfranchi, M.-N. Minard, A. Vorobyev, Antony Morris, S. A. Wotton, Sarah Beranek, G. Punzi, S. Karodia, Alena Kosmyntseva, Tara Shears, Sai-Juan Chen, Fedor Ratnikov, Mirco Dorigo, M. Poli Lener, L. Silva de Oliveira, E. Lemos Cid, Giovanni Veneziano, Rudolf Oldeman, M. P. Williams, S. Malde, S. Farry, J. van Tilburg, J. García Pardiñas, Daniele Marangotto, R. Lindner, J. Beddow, E. Jans, M. S. Rangel, F. F. Wilson, Maxime Schubiger, Liupan An, A. Gomes, Philip Ilten, M. T. Tran, G. Alkhazov, Michael McCann, J. Maratas, Oliver Lupton, A. Popov, Ignacio Bediaga, Federico Betti, A. Gallas Torreira, Mikhail Hushchyn, R. Silva Coutinho, L. A. Granado Cardoso, Nis Meinert, Morgan Martin, Alla Nogay, Michal Kreps, B. Jost, S. Vecchi, Dmitry Golubkov, Feng Jiang, Matthieu Marinangeli, A. Pistone, Y. N. Gao, Xuhao Yuan, Jiayin Sun, Stefanie Reichert, Guido Andreassi, Agnieszka Oblakowska-Mucha, I. A. Monroy, Aravindhan Venkateswaran, Anton Poluektov, Lorenzo Sestini, Roberta Cardinale, L. De Paula, J. V. Viana Barbosa, Anita Nandi, E. Govorkova, Harald Viemann, Alexander Leflat, Adam Dendek, Xiaofeng Zhu, C. Remon Alepuz, D. Martinez Santos, A. Papanestis, Dean Charles Forshaw, Max Neuner, J. Arnau Romeu, E. Furfaro, Alessio Piucci, M. Corvo, Yasmine Amhis, Gabriela Johanna Pomery, Federica Lionetto, M. J. Morello, P. Perret, Sergey Barsuk, C. Joram, T. J. Gershon, A. Grecu, L. Sun, Srikanth Sridharan, Elie Aslanides, V. Bocci, Mark Whitehead, Silvia Borghi, Andrey Ustyuzhanin, J. J. Back, Semen Eidelman, Bernardo Adeva, M. Calvo Gomez, M. Karacson, Marco Clemencic, M. Morandin, Mikkel Bjørn, M. H. Schune, M. Schlupp, Mariana Rihl, François Fleuret, G. Corti, B. Leverington, M. Chrzaszcz, L. Giubega, A. Oyanguren, L. Castillo Garcia, Patrick Mackowiak, D. Pinci, Hal Evans, V. Egorychev, C. Marin Benito, Dmitry Popov, U. Uwer, Simon Akar, Simon Baker, Svende Braun, S. Filippov, Eugenia Price, Zishuo Yang, Klaus Fohl, E. Bowen, A. Bay, M. Rama, F. Fontanelli, V. Vorobyev, H. Cai, Emma Buchanan, B. T. Meadows, M. O. Bettler, Anna Ossowska, Nathan Jurik, Daniel Charles Craik, D. Lucchesi, G. Raven, D. Decamp, C. Parkes, Cristina Lazzeroni, A. Golutvin, I. Longstaff, M. Ferro-Luzzi, L. L. Pappalardo, M. D. Sokoloff, H.-P. Dembinski, F. Martinez Vidal, Alessio Sarti, M. Fiorini, P. d'Argent, Gianni Penso, Tjeerd Ketel, J. Wishahi, Brice Maurin, P. Naik, M. Tobin, J. Fu, Andrea Valassi, J. Garra Tico, Mohamad Kozeiha, C. Prouve, E. Dall'Occo, Krzysztof Swientek, Pietro Marino, M. Schmelling, Zehua Xu, Franco Bedeschi, F. J. P. Soler, S. Ali, S. C. Haines, A. Hicheur, M. De Serio, D. Lacarrere, Lucia Grillo, C. Matteuzzi, A. McNab, Xavier Vilasis-Cardona, Roland Bernet, E. Picatoste Olloqui, P. Fernandez Declara, Jean Wicht, Christoph Hasse, G. Passaleva, M. Patel, Timon Schmelzer, M. Pappagallo, Janine Müller, Christopher Burr, S. Gianì, N. K. Watson, D. Tonelli, James Vincent Mead, Violetta Cogoni, E. Grauges, Biplab Dey, F. Machefert, C. Hombach, U. Egede, H. Luo, Alexsei Chubykin, M. Ravonel Salzgeber, Philip John Garsed, Silvia Gambetta, B. Hamilton, Sean Benson, V. Rives Molina, Daniel Vieira, R. Cenci, U. Straumann, Elena Graverini, A. Badalov, Yanxi Zhang, Sebastian Neubert, H. F. Schreiner, Olivier Deschamps, Alexander Baranov, Flavio Archilli, U. Eitschberger, Balazs Voneki, Alessandro Pastore, W. Bonivento, M. Pepe Altarelli, Edward James Millard, Marco Gersabeck, I. V. Gorelov, K. Müller, R. Tourinho Jadallah Aoude, Giovanni Cavallero, Stefano Zucchelli, X. Cid Vidal, F. Muheim, M. Veltri, G. Haefeli, Gediminas Sarpis, N. Tuning, Violaine Bellee, J. R. Smith, Valery Pugatch, M. Rotondo, Renata Kopecna, V. Balagura, Vladimir Romanovskiy, A. Zhelezov, Patrick Owen, M. Fiore, E. van Herwijnen, R. Ekelhof, Vladimir Gligorov, G. Valenti, Philipp Ibis, J. Blouw, Matthew Kelsey, Marcin Kucharczyk, Maximilien Chefdeville, D. R. Johnson, Maciej Witold Majewski, C. R. Jones, Matthew Scott Rudolph, E. Ben-Haim, Nikita Kazeev
Rok vydání: 2018
Předmět:
Zdroj: Physics Letters B. 776:430-439
ISSN: 0370-2693
Popis: The decay Z→bb¯ is reconstructed in pp collision data, corresponding to 2 fb−1 of integrated luminosity, collected by the LHCb experiment at a centre-of-mass energy of s=8 TeV. The product of the Z production cross-section and the Z→bb¯ branching fraction is measured for candidates in the fiducial region defined by two particle-level b-quark jets with pseudorapidities in the range 2.2 20 GeV and dijet invariant mass in the range 45
Databáze: OpenAIRE