Measurement Of The Charge Asymmetry In Top Quark Pair Production In Pp Collisions At S =8 Tev Using A Template Method
Vardan Khachatryan,Robin Erbacher,Camilo Andres Carrillo Montoya,Wagner Carvalho,Maciej Górski,Danek Kotlinski,Jacob Anderson,Pavel Jez,Balazs Ujvari,Sertac Ozturk,Richard Lander,Nicholas Smith,Young-Il Choi,Roumyana Hadjiiska,Selcuk Cihangir,Amitabh Lath,Willard Johns,Ludivine Ceard,Pierre Van Hove,Alberto Orso Maria Iorio,Ulrich Heintz,Alessandro Thea,Andrew Hart,Thomas Ferbel,Teppo Mäenpää, Sinan Sagir,Donghyun Kim,Jyothsna Rani Komaragiri,Jennifer Chu,Olga Driga,Cristian Pena,Jozsef Molnar,Soureek Mitra,Dominik Nowatschin,Philippe Miné,Ece Aşılar,Mircho Rodozov,Michael Tytgat,Dooyeon Gyun,Robert Schöfbeck,Luc Pape,James Hirschauer,Burak Bilki,Sachiko Toda,Francisco Yumiceva,Viktoria Athina Giakoumopoulou,Reza Goldouzian,Clara Jorda,Ram Krishna Dewanjee,Chiara Rovelli,Daniele Fasanella,Robert Hirosky,Juan Carlos Sanabria,Arnd Meyer,Hans Reithler,Lalit Mohan Pant,Danila Tlisov,Austin Baty,Tomas Lindén,Zachary Lesko,Gail Hanson,Giovanna Selvaggi,Fabio Colombo,Bhawandeep Bhawandeep,Christopher Justus,Alexandra Junkes,Yue Shi Lai,Wolfram Dietrich Zeuner,Tiziano Camporesi,Raphael Granier de Cassagnac,Georgios Daskalakis,Ernesto Migliore,Ilknur Hos,Matthew Kenzie,Giacomo Ortona,Maria Chamizo Llatas,Marcos Correa Martins Junior,Andras Hazi,Nicola Cavallo,Anne-Marie Magnan,Christopher Mcginn,Antony Adair,André Holzner,Ta-Yung Ling,Kai-Feng Chen,Matthew Nguyen,David Stickland,Giorgio Apollinari,Ashish Kumar,Marta Felcini,Damir Lelas,Selcuk Bilmis,Michal Olszewski,Jorge Luis Rodriguez,Paul Lujan,Albert M Sirunyan,Martijn Mulders,Fabrizio Palla,Lorenzo Uplegger,David Curry,Sunil Bansal,Roberval Walsh,Hannes Schettler,Victor Krychkine,Christopher Palmer,Kristan Allan Hahn,Piotr Traczyk,Niklas Pietsch,Willi Bertl,Jesse Heilman,George Stephans,Olena Karacheban,Alicia Calderon,Thomas Peiffer,Thomas Kress,Georgia Karapostoli,Niladribihari Sahoo,Fotios Ptochos,Noemi Beni,Anna Zanetti,Marc M Baarmand,Valerio Calvelli,Achille Petrilli,Konstantinos Petridis,Andreas Kornmayer,Clint Richardson,Georgios Anagnostou,Maria Cepeda,Gregory Habib Hammad,Cécile Caillol,Wee Don Teo,John Paul Chou,Peicho Petkov,Natale Demaria,Davide Piccolo,Lukas Vanelderen,Pawel de Barbaro,Nural Akchurin,Patrice Verdier,Russell Richard Betts,Vincenzo Innocente,Hyunchul Kim,Attila Racz,Paul Baillon,Viktor Savrin,Matteo Marone,Mario Masciovecchio,Jose Lazo-Flores,Adam Dishaw,Rylan Conway,Michael Northup,Alexx Perloff,Dustin Anderson,Bibhuprasad Mahakud,Viktor Khristenko,Slawek Tkaczyk,Alan Campbell,Arabella Martelli,Arno Heister,Devdatta Majumder,Isidro Gonzalez Caballero,Fan Yang,Kelly Beernaert,Sudeshna Banerjee,Salvatore Buontempo,Silvia Taroni,Cosmin Dragoiu,Evangelos Paradas,Andrea Massironi,Tobias Lapsien,David Lange,Roberto Guida,Ryan Mueller,Gigi Cappello,Claus Kleinwort,Robert Fischer,Kuntal Mondal,Benjamin Michlin,Peter Wittich,Giovanni Abbiendi,Manfred Paulini,Diego Matos Figueiredo,Emilio Meschi,Paolo Lariccia,Stefan Piperov,Jose M Hernandez,Lauri Wendland,Yusuf Erdogan,Geonmo Ryu,Yutaro Iiyama,Vladimir Petrov,Emine Gurpinar,Alberto Sánchez Hernández,Wei Zou,Gilvan Alves,Iurii Antropov,Mark Turner,Alexander Nikitenko,Kevin Burkett,Seth Cooper,Regina Demina,Arun Kumar,Wuming Luo,Federico Nguyen,Jay Dittmann,Chunjie Wang,Elvire Bouvier,David Krofcheck,Claudia Pistone,Zainol Abidin Ibrahim,Timo Peltola,Evan Friis,Raymond Patrick Kenny Iii,Helen F Heath,Sudha Ahuja,Annik Olbrechts,Matthias Hamer,Pedro Silva,Christopher West,Steven Wasserbaech,Alexey Svyatkovskiy,Shao Min Tan,Erik Butz,Paul Kyberd,Boris Mangano,Richard Loveless,Alexander Dermenev,Dezso Horvath,Andrea Delgado,Andres Tiko,Toyoko Orimoto,David Romero Abad,Alex Garabedian,Andrei Gritsan,Rachel Yohay,Wolfgang Lohmann,Riccardo Andrea Manzoni,Francesco Fiori,Gaia Maria Berruti,Benjamin Charles Radburn-Smith,Yi Chen,Apostolos Panagiotou,Laszlo Gutay,Igor Smirnov,Frank Jm Geurts,Carlos Florez,Lucija Sudic,Martin Lipinski,Mitchell Wayne,Claudio Caputo,Filip Thyssen,Evan Wolfe,Bibhuti Parida,Giancarlo Mantovani,Pawandeep Jandir,Philip Symonds,Evrim Ersin Kangal,Maryam Zeinali,Antonio María Pérez-Calero Yzquierdo,Ketino Kaadze,Renato Campanini,Alexander Schmidt,Francesco Navarria,Matthias Schröder,Federica Primavera,Ashim Roy,Klaas Padeken,Carlo Civinini,Alexey Kamenev,Konstantin Kanishchev,Matthieu Marionneau,Ivo Nicolas Naranjo,Malte Hoffmann,Dave Pellett,Manoj Sharan,Ioannis Papadopoulos,Michael Henry Schmitt,Patricia Rebello Teles,Pierluigi Paolucci,Zhen Hu,Ayman Mahrous,Javier Duarte,Luigi Moroni,Etiennette Auffray,Krzysztof Nawrocki,John Conway,Natalia Korneeva,Livia Soffi,Ian Fisk,Pablo Garcia-Abia,Pablo Martinez Ruiz del Arbol,Mukund Varma,Hasan Ogul,Oliver Gutsche,Alexis Fagot,Burin Asavapibhop,Andreas Güth,Quentin Ingram,Thomas Eichhorn,Stanislav Lisniak,Lana Beck,Louis Sgandurra,Gianluca Cerminara,Stefano Lacaprara,Matteo Sani,Amina Zghiche,Duccio Abbaneo,Paraskevas Sphicas,Willis Lin,Nairit Sur,Silvia Maselli,Begona De La Cruz,Maria Florencia Canelli,Carsten Hensel,Shalhout Shalhout,Martin Kirakosyan,Esa Tuovinen,Christopher Tully,Attilio Santocchia,John Bradmiller-Feld,Gianni Masetti,Dong-Chul Son,Simon Kwan,Tristan Du Pree,Rishi Patel,Norbert Neumeister,Hamit Mermerkaya,Colin Bernet,Claire Shepherd-Themistocleous,Salvatore My,Ezio Torassa,Emmanuel Olaiya,Ilaria Vai,Douglas Rank,Yves Sirois,Qiao Xu,Viktor Matveev,Salim Cerci,Wolfram Erdmann,Vitaliano Ciulli,Daniele Del Re,Francesca Cavallari,Giuseppe Codispoti,Lina Milena Huertas Guativa,Erhan Gülmez,Min Sang Ryu, Jochen Schieck,Sue Ann Koay,Jacopo Bernardini,Kittikul Kovitanggoon,John Anthony Ellison,Luigi Benussi,Kajari Mazumdar,Christina Snyder,Enrique Calvo,Anthony Moeller,Annika Vanhoefer,Stefan Gundacker,Matthew Snowball,Vladimir Mossolov,Paolo Ronchese,Jonatan Piedra Gomez,Krisztian Krajczar,Wei Xie,Sara Fiorendi,Eike Schlieckau,Igor Golutvin,Juan Pablo Gomez,Nicolas Zaganidis,Chamath Kottachchi Kankanamge Don,Anna Teresa Meneguzzo,Pooja Saxena,Emrah Tiras,Carley De Oliveira Martins,Teresa Rodrigo,Johannes Brandstetter,Umesh Joshi,Tariq Aziz,Frans Meijers,Milos Dordevic,Gennady Mesyats,Marcella Diemoz,Brajesh C Choudhary,Vipin Bhatnagar,Ashfaq Ahmad,Gabriele Benelli,Joao Rodrigues Antunes,Darren Mareskas-palcek,Thomas Bergauer, Sergei Bitioukov,Sudhir Malik,Jeannine Wagner-Kuhr,Markus Klute,Andrey Belyaev,Andrea Carlo Marini,Robert Bainbridge,Gagan Bihari Mohanty,Wolfgang Adam,Tapas Sarangi,Paul David Luckey,Jose Flix,Sören Erdweg,Mohsen Naseri,Sergey Troshin,Giacomo Sguazzoni,Matthias Komm,Martino Margoni,Michele De Gruttola,Norbert Tambe,Thi Hien Doan,Werner Sun,Hannes Jung,Dan Knowlton,Oleksii Toldaiev,Wajid Ali Khan,Daniel Bloch,Tilman Rohe,Alain Hervé,Tessa Pearson,Dmytro Kovalskyi,Kuan-Hsin Chen,Claude Charlot,Darren Puigh,Gyorgy Bencze,Louis Antonelli,Harvey B Newman,Colin Jessop,Christian Barth,Apichart Hortiangtham,Anterpreet Kaur,Deniz Poyraz,Michael Wayne Arenton,Daniel Domínguez Vázquez,Juan Ramon Castiñeiras De Saa,Michael Krohn,Liliana Teodorescu,Giacomo Fedi,Sarah Boutle,Maurizio Lo Vetere,Seth Conrad Zenz,Vincenzo Daponte,Derek Barge,Keith Rose,Guillelmo Gomez Ceballos,Ricardo Eusebi,Christopher Brew,Aron Soha,Tyler Ruggles,Avto Kharchilava,Gianni Zumerle,Florian Scheuch,Marius Preuten,Roy Montalvo,Dirk Ryckbosch,Andrew Askew,Vassili Kachanov,Ian Shipsey,Alan James Bell,Alexander Savin,Clemens Lange,Adish Vartak,Denis Gelé,Lev Uvarov,Teimuraz Lomtadze,Rebeca Gonzalez Suarez,Burton Betchart,Egidio Longo,Luca Cadamuro,Laurent Thomas,Tobias Pook,Franco Simonetto,Ian Michael Nugent,Ferdos Rezaei Hosseinabadi,Guenter Eckerlin,Isabel Ojalvo,Young Do Oh,Jordi Duarte Campderros,German Martinez,Wolfgang Treberer-Treberspurg,Silvano Tosi,Matthias Kasemann,Matthew Fisher,Dinyar Rabady,Jia Fu Low,Pramod Lamichhane,Pedro Guilherme Ferreira Parracho,Marcello Maggi,Rocio Vilar Cortabitarte,Yee Hsiung,Felix Frensch,Claudia Seitz,Thomas Esch,Keith Ulmer,Christian Sander,Peter Thomassen,Qamar Hassan,Philippe Bloch,Philip Harris,Yaxian Mao,Frank Chlebana
user-5f8cf7e04c775ec6fa691c92（2016）
Cited 10|Views42
Abstract
The charge asymmetry in the production of top quark and antiquark pairs is measured in proton-proton collisions at a center-of-mass energy of 8 TeV. The data, corresponding to an integrated luminosity of 19.6 inverse femtobarns, were collected by the CMS experiment at the LHC. Events with a single isolated electron or muon, and four or more jets, at least one of which is likely to have originated from hadronization of a bottom quark, are selected. A template technique is used to measure the asymmetry in the distribution of differences in the top quark and antiquark absolute rapidities. The measured asymmetry is A[c,y] = [0.33 +/- 0.26 (stat) +/- 0.33 (syst)]%, which is the most precise result to date. The results are compared to calculations based on the standard model and on several beyond-the-standard-model scenarios.
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Key words
B meson,Bottom quark,Top quark,Hadronization,Quark,Pair production,Asymmetry,Muon,Particle physics,Nuclear physics,Physics
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