Measurement of the $B^{\pm}$ production cross-section in pp collisions at $\sqrt{s} =$ 7 and 13 TeV

Roel Aaij Bernardo Adeva Marco Adinolfi Ziad Ajaltouni 1 Simon Akar Johannes Albrecht Federico Alessio Michael Alexander Alejandro Alfonso Albero Suvayu Ali Georgy Alkhazov Paula Alvarez Cartelle Antonio Alves Sandra Amato Silvia Amerio Yasmine Amhis 2 Liupan An Lucio Anderlini Guido Andreassi Mirco Andreotti Jason Andrews Robert Appleby Flavio Archilli Philippe D'Argent Joan Arnau Romeu 3 Alexander Artamonov Marina Artuso Elie Aslanides 3 Michele Atzeni Giulio Auriemma Marouen Baalouch 1 Igor Babuschkin Sebastian Bachmann John Back Alexey Badalov Clarissa Baesso Sophie Baker Vladislav Balagura 2 Wander Baldini Alexander Baranov Roger Barlow Colin Barschel Sergey Barsuk 2 William Barter Fedor Baryshnikov Varvara Batozskaya Vincenzo Battista Aurelio Bay Leo Beaucourt 4 John Beddow Franco Bedeschi Ignacio Bediaga Andrew Beiter Lennaert Bel Nikita Beliy Violaine Bellee Nicoletta Belloli Konstantin Belous Ivan Belyaev Eli Ben-Haim 5 Giovanni Bencivenni Sean Benson Sarah Beranek Alexander Berezhnoy Roland Bernet Daniel Berninghoff Emilie Bertholet 5 Alessandro Bertolin Christopher Betancourt Federico Betti Marc-Olivier Bettler Martinus Van Beuzekom Iaroslava Bezshyiko Simone Bifani Pierre Billoir 5 Alex Birnkraut Andrea Bizzeti Mikkel Bjørn Thomas Blake Frederic Blanc Steven Blusk Valerio Bocci Thomas Boettcher Alexander Bondar Nikolay Bondar Igor Bordyuzhin Silvia Borghi Maxim Borisyak Martino Borsato Francesco Bossu 2 Meriem Boubdir Themistocles Bowcock Espen Bowen Concezio Bozzi Svende Braun Thomas Britton Jolanta Brodzicka Davide Brundu Emma Buchanan Christopher Burr Albert Bursche Jan Buytaert Wiktor Byczynski Sandro Cadeddu Hao Cai Roberto Calabrese Ryan Calladine Marta Calvi Miriam Calvo Gomez Alessandro Camboni Pierluigi Campana Daniel Campora Perez Lorenzo Capriotti Angelo Carbone Giovanni Carboni Roberta Cardinale Alessandro Cardini Paolo Carniti Laurence Carson Kazuyoshi Carvalho Akiba Gianluigi Casse Lorenzo Cassina Marco Cattaneo Giovanni Cavallero Riccardo Cenci David Chamont 2 Matthew Chapman Matthew Charles 5 Philippe Charpentier Georgios Chatzikonstantinidis Maximilien Chefdeville 4 Shanzhen Chen Shu Cheung Stefan-Gabriel Chitic Veronika Chobanova Marcin Chrzaszcz Alexsei Chubykin Paolo Ciambrone Xabier Cid Vidal Gregory Ciezarek Peter Clarke Marco Clemencic Harry Cliff Joel Closier Julien Cogan 3 Eric Cogneras 1 Violetta Cogoni Lucian Cojocariu Paula Collins Tommaso Colombo Albert Comerma-Montells Andrea Contu Andrew Cook George Coombs Samuel Coquereau Gloria Corti Marco Corvo Cayo Costa Sobral Benjamin Couturier Greig Cowan Daniel Craik Andrew Crocombe Melissa Cruz Torres Robert Currie Carmelo D'Ambrosio Franciole Da Cunha Marinho Elena Dall'Occo Jeremy Dalseno Adam Davis Oscar De Aguiar Francisco Stefano De Capua Michel De Cian Jussara De Miranda Leandro De Paula Marilisa De Serio Patrizia De Simone Cameron Dean Daniel Decamp 4 Luigi Del Buono 5 Hans Dembinski Moritz Demmer Adam Dendek Denis Derkach Olivier Deschamps 1 Francesco Dettori Biplab Dey Angelo Di Canto Pasquale Di Nezza Hans Dijkstra Francesca Dordei Mirco Dorigo Alvaro Dosil Suárez Lauren Douglas Anatoliy Dovbnya Karlis Dreimanis Laurent Dufour Giulio Dujany 5 Paolo Durante Rustem Dzhelyadin Michal Dziewiecki Agnieszka Dziurda Alexey Dzyuba Sajan Easo Marcus Ebert Ulrik Egede Victor Egorychev Semen Eidelman Stephan Eisenhardt Ulrich Eitschberger Robert Ekelhof Lars Eklund Scott Ely Sevda Esen Hannah Evans Timothy Evans Antonio Falabella Nathanael Farley Stephen Farry Davide Fazzini Luca Federici Dianne Ferguson Gerard Fernandez Placido Fernandez Declara Antonio Fernandez Prieto Fabio Ferrari Fernando Ferreira Rodrigues Massimiliano Ferro-Luzzi Sergey Filippov Rosa Fini Massimiliano Fiorini Miroslaw Firlej Conor Fitzpatrick Tomasz Fiutowski Frederic Fleuret 2 Klaus Fohl Marianna Fontana Flavio Fontanelli Dean Forshaw Roger Forty Vinicius Franco Lima Markus Frank Christoph Frei Jinlin Fu Wolfgang Funk Emiliano Furfaro Christian Färber Emmy Gabriel 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Abstract : The production of B$^{±}$ mesons is studied in pp collisions at centre-of-mass energies of 7 and 13 TeV, using B$^{±}$ → J/ψ K$^{±}$ decays and data samples corresponding to 1.0 fb$^{−1}$ and 0.3 fb$^{−1}$, respectively. The production cross-sections summed over both charges and integrated over the transverse momentum range 0 < p$_{T}$ < 40 GeV/c and the rapidity range 2.0 < y < 4.5 are measured to be $ \begin{array}{l}\sigma \left( pp\to {B}^{\pm }X,\sqrt{s}=7\kern0.5em \mathrm{T}\mathrm{e}\mathrm{V}\right)=43.0\pm 0.2\pm 2.5\pm 1.7\kern0.5em \upmu \mathrm{b},\hfill \\ {}\sigma \left( pp\to {B}^{\pm }X,\sqrt{s}=13\kern0.5em \mathrm{T}\mathrm{e}\mathrm{V}\right)=86.6\pm 0.5\pm 5.4\pm 3.4\kern0.5em \upmu \mathrm{b},\hfill \end{array} $ where the first uncertainties are statistical, the second are systematic, and the third are due to the limited knowledge of the B$^{±}$ → J/ψ K$^{±}$ branching fraction. The ratio of the cross-section at 13 TeV to that at 7 TeV is determined to be 2.02 ± 0.02 (stat) ± 0.12 (syst). Differential cross-sections are also reported as functions of p$_{T}$ and y. All results are in agreement with theoretical calculations based on the state-of-art fixed next-to-leading order quantum chromodynamics.
Type de document :
Article dans une revue
JHEP, 2017, 12, pp.026. 〈10.1007/JHEP12(2017)026〉
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https://hal.archives-ouvertes.fr/hal-01669837
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Soumis le : jeudi 21 décembre 2017 - 01:09:23
Dernière modification le : lundi 18 juin 2018 - 16:09:59

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Roel Aaij, Bernardo Adeva, Marco Adinolfi, Ziad Ajaltouni, Simon Akar, et al.. Measurement of the $B^{\pm}$ production cross-section in pp collisions at $\sqrt{s} =$ 7 and 13 TeV. JHEP, 2017, 12, pp.026. 〈10.1007/JHEP12(2017)026〉. 〈hal-01669837〉

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