First measurement of the charge asymmetry in beauty-quark pair production.

6533b856fe1ef96bd12b3228

RESEARCH PRODUCT

First measurement of the charge asymmetry in beauty-quark pair production.

T. Bird A. Mazurov Agnieszka Oblakowska-mucha C. Vázquez Sierra K. Carvalho Akiba M. Nicol X. Cid Vidal A. Vorobyev Marco Adinolfi M. Frosini A. Di Canto E. Thomas E. Gersabeck Robert Fay Xiaoxue Han Franz Muheim Ph. Charpentier M. Tobin T. Hampson D. Szilard S. Belogurov L. Carson L. Kravchuk Alessandro Cardini S. Neubert V. Shevchenko Giovanni Carboni G. Alkhazov A. Comerma-montells Michal Kreps J. M. De Miranda N. Skidmore B. Jost Krzysztof Swientek S. Wright M. Dorigo G. Valenti C. Nguyen-mau Brian Meadows J. Maratas M. M. Reid R. Stroili C. Bozzi P. Szczypka R. Nandakumar M. Ferro-luzzi Stephane T'jampens B. Pietrzyk R. Schwemmer Laura Gavardi Vincenzo Battista K. Kreplin Varvara Batozskaya A. Kozlinskiy B. K. Pal S. Gambetta M. Korolev D. Wiedner E. Bowen M. Calvo Gomez Guoming Liu C. Khurewathanakul Claudio Gotti Z. Xing Yu. Guz P. Owen P. Alvarez Cartelle M. Corvo M. Schlupp Nikolay Bondar S. Farry A. B. Rodrigues Ph. Ghez A. Sciubba J. Marks J. P. Lees M. Straticiuc M. J. Morello J. He G. A. Cowan G. Corti P. De Simone M. Merk Yang Li M. Liles S. Easo Miroslaw Firlej J. Panman T. Skwarnicki A. Pistone E. Rodrigues L. De Paula V. Heijne G. Wormser H. Carranza-mejia Matthew Kelsey Howard Gordon Giulia Tellarini F. Lionetto Jinlin Fu B. Spaan Mauro Morandin V. Vagnoni J. Wishahi G. Krocker O. Steinkamp D. Voong P. Naik R. Märki S. Esen Matteo Rama R. Le Gac S. Gregson Marta Calvi M. Veltri G. Haefeli Nathanael Farley M. Witek M. Needham I. Nasteva N. Moggi Johannes Albrecht Malcolm John P. Lowdon M. Gandelman S. Reichert D. Hill Maurizio Martinelli M. Szczekowski C. Marin Benito J. Closier A. Massafferri J. A. Hernando Morata R. Vazquez Gomez F. Bedeschi Wouter Hulsbergen M. Tresch A. Borgia I. Shapoval E. Gushchin C. Linn Roberta Cardinale Roger Forty E. Santovetti B. Gui Gabriele Simi Vladislav Balagura Dmitry Golubkov D. Galli T. Brambach S. Cadeddu S. Roiser Lluis Garrido A. Bay T. Nikodem D. R. Johnson P. Durante R. Muresan Jonas Rademacker A. Hicheur E. Perez Trigo Zhilei Xu Z. Mathe A. Gianelle A. A. Affolder Roel Aaij B. Schmidt B. Sanmartin Sedes C. R. Jones S. Hall G. Punzi P. Spradlin William Barter S. De Capua Jaap Velthuis D. Souza J. Buytaert M. Schmelling J. Anderson George Lafferty S. Tolk Alexander Berezhnoy Gianluigi Casse F. Stagni Giulio Dujany J. Prisciandaro R. Wallace A. Carbone J. R. Smith Valery Pugatch C. D'ambrosio Tara Shears M. Sapunov I. R. Kenyon A. Dovbnya Roland Waldi M. Pappagallo Anton Poluektov Lorenzo Sestini V. Syropoulos V. K. Subbiah M. P. Williams S. Malde G. Sabatino B. Souza De Paula M. Plo Casasus Nikolay Nikitin D. Savrina Stephen M. Stahl N. Neufeld S. Swientek J. Rouvinet Daniel Patrick O'hanlon Robert Appleby M. Teklishyn Barbara Sciascia O. Kochebina E. Furfaro M. Coombes J. Serrano E. Ben-haim Anna Lupato A. Zvyagin E. Jans B. Popovici N. Déléage J. Van Leerdam G. Raven D. Decamp A. Golutvin Alexander Bondar M. Vesterinen S. Gianì F. Kruse T. Head W. Qian A. Zhelezov M. Fiore W. Sutcliffe J. Wicht P. E. L. Clarke A. Oyanguren P. Jaton D. Vieira A. Satta Ulrik Egede I. Sepp M. Orlandea U. Uwer N. Tuning F. Meier V. Romanovsky Fergus Wilson L. Beaucourt C. Langenbruch W. C. Zhang G. D. Patel P. Henrard M. Vieites Diaz Ignacio Bediaga Alessio Sarti W. Bonivento M. S. Rangel Liupan An Manuel Schiller Alexey Badalov F. Blanc Wojciech Kucewicz A. C. Dos Reis D. A. Milanes S. Topp-joergensen S. Ogilvy Marouen Baalouch S. Cunliffe X. Yuan D. Pinci Lars Eklund A. Petrolini S. Stracka H. Snoek S.-f. Cheung C. Satriano V. Egorychev Y. Zhang Roger Barlow M. Perrin-terrin R. Lefèvre W. Wislicki Marian Stahl S. Vecchi I. Counts Patrick Koppenburg Lei Zhang Marianna Fontana E. Pesen Jakub Moron Marcello Rotondo V. Rives Molina M. Kucharczyk Ziad Ajaltouni Colin Barschel A. Leflat S. Perazzini A. Contu J. Molina Rodriguez Hans Dijkstra G. Manca O. Schneider L. Pescatore W. De Silva Olivier Leroy Lucio Anderlini Lucio Anderlini W. Kanso M. Grabalosa Gándara A. Romero Vidal R. Andreassen R. F. Koopman J. Jalocha O. Lupton O. Maev K. Ciba M. Andreotti G. Graziani A. Gomes O. Francisco P. N. Y. David Zhenwei Yang L. A. Granado Cardoso C. Haen C. Hadjivasiliou J. García Pardiñas M. Deckenhoff I. V. Machikhiliyan B. Muster Yasmine Amhis N. H. Brook R. Lindner S. Stevenson P. Seyfert Karol Hennessy Louis Henry P. Vazquez Regueiro T. Ruf J. Dalseno J. Bressieux R. Currie S. Hansmann-menzemer A. Schopper M. Heß R. Mountain Sebastian Bachmann H. Lu V. Obraztsov P. Perret O. Aquines Gutierrez Sergey Barsuk C. Joram H. Ruiz P. Hunt R. Silva Coutinho Dmitry Popov G. Busetto M. Patel Michael Sokoloff T. M. Karbach N. K. Watson E. Lanciotti Bo Liu Stephan Eisenhardt S. Lohn F. Soomro L. Shekhtman D. Martinez Santos A. Dosil Suárez N. A. Smith M. Charles S. T. Harnew E. Van Herwijnen Tomasz Fiutowski F. Teubert J. Lefrançois S. Klaver J. J. Saborido Silva Thierry Gys R. Cenci J. H. Lopes Ivan Belyaev M. Smith C. Färber A. Artamonov A. Pazos Alvarez O. Okhrimenko C. Lazzeroni M. Meissner P. Rodriguez Perez A. Semennikov D. Brett Michael Kolpin G. Lanfranchi M.-n. Minard A. D. Nguyen F. Dordei R. Ekelhof Vladimir Gligorov V. Gibson Marco Cattaneo A. Grecu L. Sun T. Lesiak P. Collins B. Leverington M. Chrzaszcz L. Giubega C. Voß L. Castillo Garcia Max Neuner Silvia Borghi M. Karacson A. V. Popov A. Sparkes P. Gandini Wander Baldini H. Luo Adam Benjamin Morris B. Viaud N. Sagidova Daniel Martin Saunders G. Veneziano S. Kandybei M. H. Schune Mark Whitehead B. Hamilton Victor Coco C. J. Parkinson S.i. Eidelman F. Palombo F. Maciuc Bernardo Adeva Hal Evans V. Salustino Guimaraes Genady Gavrilov A. Puig Navarro Nicola Serra S. Ricciardi L. Cassina A. Zhokhov C. Farinelli U. Straumann Eugenia Price S. Blusk Alessandro Camboni A. Dziurda Sandra Amato R. Graciani Diaz D. Martins Tostes N. Torr S. Tourneur Albert Bursche D. Campora Perez D. A. Roa Romero V. Kudryavtsev Christoph Frei U. Marconi D. R. Ward Patrick Robbe F. Archilli M. Palutan F. Fontanelli Olivier Deschamps Neville Harnew S. Monteil R. Gauld Konrad Klimaszewski V. Fernandez Albor K. Kurek J. M. Otalora Goicochea P. Marino G. Mancinelli R. Niet K. De Bruyn J. Harrison F. Polci S. Stoica K. Belous T. Britton A. Vollhardt J. Beddow Michael Alexander Jolanta Brodzicka D. Lucchesi J. A. De Vries O. Yushchenko S. Wandernoth A. Dzyuba A. Vallier M. Mussini Eleonora Luppi I. Longstaff C. Thomas A. Jaeger G. Passaleva J. Benton Timothy Evans Sau Lan Wu P. Sail D. Lambert F. Martinez Vidal D. Websdale B. Couturier M. Pepe Altarelli Denis Derkach U. Eitschberger J. F. J. Van Den Brand Marco Gersabeck F. Ferreira Rodrigues B. Rachwal M. Ubeda Garcia Markus Frank Tjeerd Ketel Martino Borsato P. Morawski Nicola Neri Simone Bifani N. Rauschmayr Markward Britsch M. Sirendi H. Brown P. Griffith K. Müller A. Novoselov Kenneth Wyllie P. David I. El Rifai P. Tsopelas A. Bien L. Zhong Thomas Latham Karlis Dreimanis C. Patrignani J. Blouw Simon Akar V. N. La Thi A. Tsaregorodtsev A. A. Alves Mariana Rihl Tatsuya Nakada F. Jing Sheldon Stone M. Savrie V. Tisserand S. Filippov J. Garra Tico B. Rakotomiaramanana H. Voss B. Langhans V. Vorobyev Francesco Dettori Andrea Bizzeti Mark Richard James Williams C. Prouve F. J. P. Soler Luca Tomassetti S. Ali S. C. Haines B. Mcskelly A. Falabella S. Amerio Biagio Saitta N. Lopez-march I. Komarov D. Lacarrere A. Mordà Jean François Marchand M. Mccann C. Wallace Oleg Stenyakin A. Martens Xavier Vilasis-cardona M. Seco R. Dzhelyadin A. Lai A. Pearce E. Smith C. Fitzpatrick C. Matteuzzi C. Potterat M. Cruz Torres A. Mcnab L. Del Buono A. Martín Sánchez Roland Bernet E. Picatoste Olloqui John Back T. Pilař Gerco Onderwater A. Ukleja B. Khanji E. Tournefier V. Bocci V. Niess N. Hussain Sophie Richards E. Grauges S. Coquereau E. Polycarpo A. Pritchard F. Machefert C. Hombach G. Bencivenni J. J. Walsh D. Hynds Kurt Rinnert C. Göbel Marina Artuso Marco Clemencic C. Parkes F. Ruffini P. Campana C. Santamarina Rios E. Greening M. Hoballah G. Martellotti A. Shires Konstantinos Petridis S. Benson F. Dupertuis L. Grillo J. Mccarthy R. Santacesaria A. Davis J. Wimberley T. J. V. Bowcock Julien Cogan R. Matev J. E. Andrews R. Mcnulty P. Krokovny N. Chiapolini D. Volyanskyy Ch. Cauet I. Raniuk E. Cogneras M. Zavertyaev S. A. Wotton A. Papanestis Rudolf Oldeman A. Gallas Torreira B. Storaci D. C. Craik P. M. Bjørnstad Timothy Gershon Y. Xie Thomas Blake T. D. Nguyen H. Schindler Marek Idzik P. Ruiz Valls M. De Cian M. Van Beuzekom Scott Ely O. Grünberg C. Sanchez Mayordomo H. V. Cliff Federico Alessio Ch. Elsasser M. T. Tran Yang Gao Elie Aslanides R. Calabrese N. Jurik A. Cook D. Ferguson S. Playfer M. Kaballo Massimiliano Fiorini S. Gallorini M. Zangoli S. Oggero G. Auriemma G. Auriemma A. Jawahery S. Donleavy M. Shapkin Y. Shcheglov T. Kvaratskheliya A. Palano Tomasz Szumlak G. Ciezarek R. Jacobsson Marc-olivier Bettler David Hutchcroft J. Garofoli S. Leo A. Pellegrino G. Wilkinson S. Karodia Sai-juan Chen J. Van Tilburg Philip Ilten D. Dossett R. W. Lambert A. Ustyuzhanin C. Gaspar Jing Wang

subject

ROOT-S=7 TEV; COLLISIONS; DETECTOR; DECAY charge asymmetries General Physics and Astronomy 7. Clean energy High Energy Physics - Experiment Settore FIS/04 - Fisica Nucleare e Subnucleare high energy physics the standard model [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]photons Invariant mass Nuclear Experiment QC media_common Physics Large Hadron Collider hadron colliders integrated luminosity Particle physics root-S=7 Tev; colisions; detector; decay Física nuclear LHC tellurium compounds Particle Physics - Experiment Quark COLLISIONS Particle physics 530 Physics media_common.quotation_subject Physics Institute LHCb - Abteilung Hofmann Bottom quark Asymmetry Standard Model Nuclear physics Physics and Astronomy (all)Rapidity SDG 7 - Affordable and Clean Energy DETECTOR 14.65.Fy hadron colliders; tellurium compounds; center-of-mass energies; transverse planes; charge asymmetries; integrated luminosity; high energy physics; pair production; photons; the standard model; proton proton collisions /dk/atira/pure/sustainabledevelopmentgoals/affordable_and_clean_energy ROOT-S=7 TEV center-of-mass energies High Energy Physics::Phenomenology Bottom quark proton proton collisions LHCb pair production Pair production transverse planes High Energy Physics::Experiment Física de partícules Experiments DECAY

description

The difference in the angular distributions between beauty quarks and antiquarks, referred to as the charge asymmetry, is measured for the first time in b[bar over b] pair production at a hadron collider. The data used correspond to an integrated luminosity of 1.0 fb[superscript −1] collected at 7 TeV center-of-mass energy in proton-proton collisions with the LHCb detector. The measurement is performed in three regions of the invariant mass of the b[bar over b] system. The results obtained are A[b[bar over b] over C](40 105 GeV/c[superscript 2]) = 1.6 ± 1.7 ± 0.6%, where A[b[bar over b] over C] is defined as the asymmetry in the difference in rapidity between jets formed from the beauty quark and antiquark, where in each case the first uncertainty is statistical and the second systematic. The beauty jets are required to satisfy 2 20 GeV, and have an opening angle in the transverse plane Δϕ > 2.6 rad. These measurements are consistent with the predictions of the standard model.

year	journal	country	edition	language
2014-08-20	Physical review letters

10.1103/physrevlett.113.082003 https://pubmed.ncbi.nlm.nih.gov/25192090