Measurement of the ${B}^{\pm}$ Meson Nuclear Modification Factor in Pb-Pb Collisions at $\sqrt{{s}_{NN}}=5.02\text{ }\text{ }\mathrm{TeV}$

Albert Sirunyan Armen Tumasyan Wolfgang Adam Ece Asilar Thomas Bergauer Johannes Brandstetter Erica Brondolin Marko Dragicevic Janos Erö Martin Flechl Markus Friedl Rudolf Fruehwirth Vasile Ghete Natascha Krammer Josef Hrubec Manfred Jeitler Axel König Ilse Krätschmer Dietrich Liko Takashi Matsushita Ivan Mikulec Dinyar Rabady Navid Rad Herbert Rohringer Jochen Schieck Josef Strauss Wolfgang Waltenberger Claudia-Elisabeth Wulz Vladimir Chekhovsky Vladimir Mossolov Juan Suarez Gonzalez Nikolai Shumeiko Sara Alderweireldt Eddi De Wolf Xavier Janssen Jasper Lauwers Merijn Van de Klundert Hans Van Haevermaet Pierre Van Mechelen Nick Van Remortel Alex Van Spilbeeck Shimaa Abu Zeid Freya Blekman Jorgen D'Hondt Isabelle De Bruyn Jarne De Clercq Kevin Deroover Steven Lowette Seth Moortgat Lieselotte Moreels Annik Olbrechts Quentin Python Kirill Skovpen Stefaan Tavernier Walter Van Doninck Petra Van Mulders Isis Van Parijs Hugues Brun Barbara Clerbaux Gilles De Lentdecker Hugo Delannoy Giuseppe Fasanella Laurent Favart Reza Goldouzian Anastasia Grebenyuk Georgia Karapostoli Thomas Lenzi Jelena Luetic Thierry Maerschalk Andrey Marinov Aidan Randle-Conde Tomislav Seva Catherine Vander Velde Pascal Vanlaer David Vannerom Ryo Yonamine Florian Zenoni Fengwangdong Zhang Anna Cimmino Tom Cornelis Didar Dobur Alexis Fagot Muhammad Gul Illia Khvastunov Deniz Poyraz Sinem Salva Diblen Robert Schöfbeck Michael Tytgat Ward Van Driessche Willem Verbeke Nicolas Zaganidis Hamed Bakhshiansohi Olivier Bondu Sébastien Brochet Giacomo Bruno Adrien Caudron Simon De Visscher Christophe Delaere Martin Delcourt Brieuc Francois Andrea Giammanco Abideh Jafari Matthias Komm Georgios Krintiras Vincent Lemaitre Alessio Magitteri Alexandre Mertens Marco Musich Krzysztof Piotrzkowski Loic Quertenmont Miguel Vidal Marono Sébastien Wertz Nikita Beliy Walter Aldá Júnior Fábio Alves Gilvan Alves Lucas Brito Carsten Hensel Arthur Moraes Maria Pol Patricia Rebello Teles Ewerton Belchior Batista das Chagas Wagner Carvalho Jose Chinellato Analu Custódio Eliza Melo da Costa Gustavo Da Silveira Dilson De Jesus Damiao Sandro Fonseca de Souza Lina Huertas Guativa Helena Malbouisson Clemencia Mora Herrera Luiz Mundim Helio Nogima Alberto Santoro Andre Sznajder Edmilson Tonelli Manganote Felipe Torres da Silva de Araujo Antonio Vilela Pereira Sudha Ahuja Cesar Bernardes Thiago Tomei Eduardo De Moraes Gregores Pedro Mercadante Chang-Seong Moon Sergio Novaes Sandra Padula David Romero Abad José Ruiz Vargas Aleksandar Aleksandrov Roumyana Hadjiiska Plamen Iaydjiev Mircho Rodozov Stefka Stoykova Georgi Sultanov Mariana Shopova Anton Dimitrov Ivan Glushkov Leander Litov Borislav Pavlov Peicho Petkov Wenxing Fang Xuyang Gao Jian-Guo Bian Guo-Ming Chen He-Sheng Chen Mingshui Chen Ye Chen Chun-Hua Jiang Duncan Leggat Zhenan Liu Francesco Romeo Sarmad Shaheen Aniello Spiezia Junquan Tao Chunjie Wang Zheng Wang Efe Yazgan Huaqiao Zhang Jingzhou Zhao Yong Ban Geng Chen Qiang Li Shuai Liu Yajun Mao Si-Jin Qian Dayong Wang Zijun Xu Carlos Avila Andrés Cabrera Luisa Chaparro Sierra Carlos Florez Carlos González Hernández José Ruiz Alvarez Nikola Godinovic Damir Lelas Ivica Puljak Pedro Ribeiro Cipriano Toni Sculac Zeljko Antunovic Marko Kovac Vuko Brigljevic Dinko Ferencek Kreso Kadija Benjamin Mesic Tatjana Susa Mohsan Ather Alexandros Attikis Georgios Mavromanolakis Jehad Mousa Charalambos Nicolaou Fotios Ptochos Panos Razis Hans Rykaczewski Miroslav Finger Michael Finger Edgar Carrera Jarrin Yasser Assran Mohammed Mahmoud Ayman Mahrous Ram Dewanjee Mario Kadastik Lucia Perrini Martti Raidal Andres Tiko Christian Veelken Paula Eerola Juska Pekkanen Mikko Voutilainen Jaakko Härkönen Terhi Jarvinen Veikko Karimäki Ritva Kinnunen Tapio Lampén Kati Lassila-Perini Sami Lehti Tomas Lindén Panja-Riina Luukka Eija Tuominen Jorma Tuominiemi Esa Tuovinen Joonas Talvitie Tuure Tuuva Marc Besancon 1 Fabrice Couderc 1 Marc Dejardin 1 Daniel Denegri 1 Jean-Louis Faure 1 Federico Ferri 1 Serguei Ganjour 1 Saranya Ghosh 1 Alain Givernaud 1 Philippe Gras 1 Gautier Hamel de Monchenault 1 Patrick Jarry 1 Inna Kucher 1 Elizabeth Locci 1 Martina Machet 1 Julie Malcles 1 John Rander 1 André Rosowsky 1 Mehmet Sahin 1 Maksym Titov 1 Abdulla Abdulsalam 2 Iurii Antropov 2 Stephanie Baffioni 2 Florian Beaudette 2 Philippe Busson 2 Luca Cadamuro 2 Emilien Chapon 2 Claude Charlot 2 Olivier Davignon 2 Raphael Granier de Cassagnac 2 Mihee Jo 2 Stanislav Lisniak 2 Artur Lobanov 2 Philippe Miné 2 Matthew Nguyen 2 Christophe Ochando 2 Giacomo Ortona 2 Pascal Paganini 2 Philipp Pigard 2 Simon Regnard 2 Roberto Salerno 2 Yves Sirois 2 Andre Stahl Leiton 2 Thomas Strebler 2 Yetkin Yilmaz 2 Alexandre Zabi 2 Jean-Laurent Agram 3, 4 Jeremy Andrea 3 Daniel Bloch 3 Jean-Marie Brom 3 Michael Buttignol 3 Eric Chabert 3 Nicolas Chanon 3 Caroline Collard 3 Eric Conte 3, 4 Xavier Coubez 3 Jean-Charles Fontaine 3, 4 Denis Gelé 3 Ulrich Goerlach 3 Anne-Catherine Le Bihan 3 Pierre Van Hove 3 Sébastien Gadrat 5 Stephanie Beauceron 6
Abstract : The differential production cross sections of B± mesons are measured via the exclusive decay channels B±→J/ψK±→μ+μ-K± as a function of transverse momentum in pp and Pb-Pb collisions at a center-of-mass energy sNN=5.02  TeV per nucleon pair with the CMS detector at the LHC. The pp(Pb-Pb) data set used for this analysis corresponds to an integrated luminosity of 28.0  pb-1 (351  μb-1). The measurement is performed in the B± meson transverse momentum range of 7 to 50  GeV/c, in the rapidity interval |y|<2.4. In this kinematic range, a strong suppression of the production cross section by about a factor of 2 is observed in the Pb-Pb system in comparison to the expectation from pp reference data. These results are found to be roughly compatible with theoretical calculations incorporating beauty quark diffusion and energy loss in a quark-gluon plasma.
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Physical Review Letters, American Physical Society, 2017, 119 (15), pp.152301. 〈10.1103/PhysRevLett.119.152301〉
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https://hal.archives-ouvertes.fr/hal-01669602
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Soumis le : jeudi 13 décembre 2018 - 10:27:35
Dernière modification le : jeudi 13 décembre 2018 - 10:35:15

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Albert Sirunyan, Armen Tumasyan, Wolfgang Adam, Ece Asilar, Thomas Bergauer, et al.. Measurement of the ${B}^{\pm}$ Meson Nuclear Modification Factor in Pb-Pb Collisions at $\sqrt{{s}_{NN}}=5.02\text{ }\text{ }\mathrm{TeV}$. Physical Review Letters, American Physical Society, 2017, 119 (15), pp.152301. 〈10.1103/PhysRevLett.119.152301〉. 〈hal-01669602〉

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