Study of central exclusive $\pi^+\pi^-$ production in proton-proton collisions at $\sqrt{s} =$ 5.02 and 13 TeV

Albert M Sirunyan , Armen Tumasyan , Wolfgang Adam , Federico Ambrogi , Thomas Bergauer , Johannes Brandstetter , Marko Dragicevic , Janos Erö , Alberto Escalante del Valle , Martin Flechl , Rudolf Fruehwirth , Manfred Jeitler , Natascha Krammer , Ilse Krätschmer , Dietrich Liko , Thomas Madlener , Ivan Mikulec , Navid Rad , Jochen Schieck , Robert Schöfbeck , Markus Spanring , Daniel Spitzbart , Wolfgang Waltenberger , Johannes Wittmann , Claudia-Elisabeth Wulz , Mateusz Zarucki , Vladimir Drugakov , Vladimir Mossolov , Juan Suarez Gonzalez , Mohamed Rashad Darwish , Eddi A de Wolf , Davide Di Croce , Xavier Janssen , Jasper Lauwers , Aleksandra Lelek , Maxim Pieters , Haifa Rejeb Sfar , Hans van Haevermaet , Pierre van Mechelen , Senne van Putte , Nick van Remortel , Freya Blekman , Emil Sørensen Bols , Simranjit Singh Chhibra , Jorgen d'Hondt , Jarne de Clercq , Denys Lontkovskyi , Steven Lowette , Ivan Marchesini , Seth Moortgat , Lieselotte Moreels , Quentin Python , Kirill Skovpen , Stefaan Tavernier , Walter van Doninck , Petra van Mulders , Isis van Parijs , Diego Beghin , Bugra Bilin , Hugues Brun , Barbara Clerbaux , Gilles de Lentdecker , Hugo Delannoy , Brian Dorney , Laurent Favart , Anastasia Grebenyuk , Amandeep Kaur Kalsi , Jelena Luetic , Andrey Popov , Nicolas Postiau , Elizabeth Starling , Laurent Thomas , Catherine Vander Velde , Pascal Vanlaer , David Vannerom , Qun Wang , Tom Cornelis , Didar Dobur , Illia Khvastunov (1) , Christos Roskas , Daniele Trocino , Michael Tytgat , Willem Verbeke , Basile Vermassen , Martina Vit , Nicolas Zaganidis , Olivier Bondu , Giacomo Bruno , Claudio Caputo , Pieter David , Christophe Delaere , Martin Delcourt , Andrea Giammanco , Georgios Krintiras , Vincent Lemaitre , Alessio Magitteri , Krzysztof Piotrzkowski , Jessica Prisciandaro , Alessia Saggio , Miguel Vidal Marono , Pietro Vischia , Joze Zobec , Fábio Lúcio Alves , Gilvan Alves , Gilson Correia Silva , Carsten Hensel , Arthur Moraes , Patricia Rebello Teles , Ewerton Belchior Batista das Chagas , Wagner Carvalho , Jose Chinellato , Eduardo Coelho , Eliza Melo da Costa , Gustavo Gil da Silveira , Dilson de Jesus Damiao , Carley de Oliveira Martins , Sandro Fonseca de Souza , Lina Milena Huertas Guativa , Helena Malbouisson , Jordan Martins , Diego Matos Figueiredo , Miguel Medina Jaime , Miqueias Melo de Almeida , Clemencia Mora Herrera , Luiz Mundim , Helio Nogima , Wanda Lucia Prado da Silva , Luis Sanchez Rosas , Alberto Santoro , Andre Sznajder , Mauricio Thiel , Edmilson José Tonelli Manganote , Felipe Torres da Silva de Araujo , Antonio Vilela Pereira , Sudha Ahuja , Cesar Augusto Bernardes , Luigi Calligaris , Thiago Tomei , Eduardo de Moraes Gregores , Dener de Souza Lemos , Pedro G Mercadante , Sergio F Novaes , Sandra Padula , Aleksandar Aleksandrov , Georgy Antchev , Roumyana Hadjiiska , Plamen Iaydjiev , Andrey Marinov , Milena Misheva , Mircho Rodozov , Mariana Shopova , Georgi Sultanov , Anton Dimitrov , Leander Litov , Borislav Pavlov , Peicho Petkov , Wenxing Fang , Xuyang Gao , Li Yuan , Zhen Hu , Yi Wang , Muhammad Ahmad , Guo-Ming Chen , He-Sheng Chen , Mingshui Chen , Chun-Hua Jiang , Duncan Leggat , Hongbo Liao , Zhenan Liu , Sarmad Masood Shaheen , Aniello Spiezia , Junquan Tao , Efe Yazgan , Huaqiao Zhang , Sijing Zhang , Jingzhou Zhao , Antonis Agapitos , Yong Ban , Geng Chen , Andrew Levin , Jing Li , Linwei Li , Qiang Li , Yajun Mao , Si-Jin Qian , Dayong Wang , Carlos Avila , Andrés Cabrera , Luisa Fernanda Chaparro Sierra , Carlos Florez , Carlos Felipe González Hernández , Manuel Alejandro Segura Delgado , Duje Giljanovic , Nikola Godinovic , Damir Lelas , Ivica Puljak , Toni Sculac , Zeljko Antunovic , Marko Kovac , Vuko Brigljevic , Sasa Ceci , Dinko Ferencek , Kreso Kadija , Benjamin Mesic , Matej Roguljic , Andrei Starodumov , Tatjana Susa , Mohsan Waseem Ather , Alexandros Attikis , Eleni Erodotou , Aimilios Ioannou , Marina Kolosova , Sotiroulla Konstantinou , Georgios Mavromanolakis , Jehad Mousa , Charalambos Nicolaou , Fotios Ptochos , Panos A Razis , Hans Rykaczewski , Demetra Tsiakkouri , Miroslav Finger , Michael Finger , Antonin Kveton , Jan Tomsa , Edy Ayala , Edgar Carrera Jarrin , Mohammed Mahmoud , Yasser Mohammed , Sandeep Bhowmik , Alexandra Carvalho Antunes de Oliveira , Ram Krishna Dewanjee , Karl Ehataht , Mario Kadastik , Martti Raidal , Christian Veelken , Paula Eerola , Laurent Forthomme , Henning Kirschenmann , Kenneth Osterberg , Juska Pekkanen , Mikko Voutilainen , Francisco Ignacio Garcia Fuentes , Joona Havukainen , Jaana Kristiina Heikkilä , Terhi Jarvinen , Veikko Karimäki , Ritva Kinnunen , Tapio Lampén , Kati Lassila-Perini , Santeri Laurila , Sami Lehti , Tomas Lindén , Panja-Riina Luukka , Teppo Mäenpää , Hannu Siikonen , Eija Tuominen , Jorma Tuominiemi , Tuure Tuuva , Marc Besancon (1) , Fabrice Couderc (1) , Marc Dejardin (1) , Daniel Denegri (1) , Bernard Fabbro (1) , Jean-Louis Faure (1) , Federico Ferri (1) , Serguei Ganjour (1) , Alain Givernaud (1) , Philippe Gras (1) , Gautier Hamel de Monchenault (1) , Patrick Jarry (1) , Clément Leloup (1) , Elizabeth Locci (1) , Julie Malcles (1) , John Rander (1) , André Rosowsky (1) , Mehmet Özgür Sahin (1) , Aurore Savoy-Navarro (1) , Maksym Titov (1) , Chiara Amendola (2) , Florian Beaudette (2) , Philippe Busson (2) , Claude Charlot (2) , Batoul Diab (2) , Raphael Granier de Cassagnac (2) , Inna Kucher (2) , Artur Lobanov (2) , Cristina Martin Perez (2) , Matthew Nguyen (2) , Christophe Ochando (2) , Pascal Paganini (2) , Jonas Rembser (2) , Roberto Salerno (2) , Jean-Baptiste Sauvan (2) , Yves Sirois (2) , Alexandre Zabi (2) , Amina Zghiche (2) , Jean-Laurent Agram (3, 4) , Jeremy Andrea (3) , Daniel Bloch (3) , Guillaume Bourgatte (3) , Jean-Marie Brom (3) , Eric Christian Chabert (3) , Caroline Collard (3) , Eric Conte (3, 4) , Jean-Charles Fontaine (3, 4) , Denis Gelé (3) , Ulrich Goerlach (3) , Markéta Jansová (3) , Anne-Catherine Le Bihan (3) , Nicolas Tonon (3) , Pierre van Hove (3) , Sébastien Gadrat (5) , Stephanie Beauceron (6) , Colin Bernet (6) , Gaelle Boudoul (6) , Camille Camen (6) , Nicolas Chanon (6) , Roberto Chierici (6) , Didier Contardo (6) , Pierre Depasse (6) , Houmani El Mamouni (6) , Jean Fay (6) , Susan Gascon (6) , Maxime Gouzevitch (6) , Bernard Ille (6) , Sandhya Jain (6) , Francois Lagarde (6) , Imad Baptiste Laktineh (6) , Hugues Lattaud (6) , Morgan Lethuillier (6) , Laurent Mirabito (6) , Stephane Perries (6) , Viola Sordini (6) , Gaël Touquet (6) , Muriel Vander Donckt (6) , Sébastien Viret (6) , Tengizi Toriashvili , Zviad Tsamalaidze , Christian Autermann , Lutz Feld , Maximilian Knut Kiesel , Katja Klein , Martin Lipinski , Danilo Meuser , Alexander Pauls , Marius Preuten , Max Philip Rauch , Christian Schomakers , Johannes Schulz , Marius Teroerde , Bruno Wittmer , Andreas Albert , Martin Erdmann , Sören Erdweg , Thomas Esch , Benjamin Fischer , Robert Fischer , Saranya Ghosh , Thomas Hebbeker , Kerstin Hoepfner , Henning Keller , Luca Mastrolorenzo , Markus Merschmeyer , Arnd Meyer , Philipp Millet , Giovanni Mocellin , Spandan Mondal , Swagata Mukherjee , Dennis Noll , Andrzej Novak , Tobias Pook , Andrey Pozdnyakov , Thorben Quast , Markus Radziej , Yannik Rath , Hans Reithler , Marcel Rieger , Alexander Schmidt , Simon Christoph Schuler , Archana Sharma , Sebastian Thüer , Sebastian Wiedenbeck , Günter Flügge , Wael Haj Ahmad , Olena Hlushchenko , Thomas Kress , Thomas Müller , Alexander Nehrkorn , Andreas Nowack , Claudia Pistone , Oliver Pooth , Dennis Roy , Hale Sert , Achim Stahl , Maria Aldaya Martin , Chayanit Asawatangtrakuldee , Paul Asmuss , Illia Babounikau , Hamed Bakhshiansohi , Kelly Beernaert , Olaf Behnke , Ulf Behrens , Armando Bermúdez Martínez , David Bertsche , Afiq Aizuddin Bin Anuar , Kerstin Borras , Valeria Botta , Alan Campbell , Andrea Cardini , Patrick Connor , Sandra Consuegra Rodríguez , Christian Contreras-Campana , Vladyslav Danilov , Adinda de Wit , Matteo Maria Defranchis , Carmen Diez Pardos , Daniela Domínguez Damiani , Guenter Eckerlin , Doris Eckstein , Thomas Eichhorn , Adam Elwood , Engin Eren , Elisabetta Gallo , Achim Geiser , Juan Manuel Grados Luyando , Alexander Grohsjean , Moritz Guthoff , Mykyta Haranko , Ali Harb , Nur Zulaiha Jomhari , Hannes Jung , Ashraf Mohamed , Matthias Kasemann , James Keaveney , Claus Kleinwort , Joscha Knolle , Dirk Krücker , Wolfgang Lange , Teresa Lenz , Jessica Leonard , Jindrich Lidrych , Katerina Lipka , Wolfgang Lohmann , Rainer Mankel , Isabell-Alissandra Melzer-Pellmann , Andreas Bernhard Meyer , Mareike Meyer , Marino Missiroli , Gregor Mittag , Joachim Mnich , Andreas Mussgiller , Volodymyr Myronenko , Danyer Pérez Adán , Svenja Karen Pflitsch , Daniel Pitzl , Alexei Raspereza , Andrej Saibel , Mykola Savitskyi , Valerie Scheurer , Paul Schütze , Christian Schwanenberger , Rostyslav Shevchenko , Akshansh Singh , Heiner Tholen , Oleksii Turkot , Antonio Vagnerini , Merijn van de Klundert , Gerrit Patrick van Onsem , Roberval Walsh , Yiwen Wen , Katarzyna Wichmann , Christoph Wissing , Oleksandr Zenaiev , Radek Zlebcik , Robin Aggleton , Samuel Bein , Lisa Benato , Anna Benecke , Volker Blobel , Torben Dreyer , Aliakbar Ebrahimi , Alexander Fröhlich , Christoph Garbers , Erika Garutti , Daniel Gonzalez , Paolo Gunnellini , Johannes Haller , Andreas Hinzmann , Anastasia Karavdina , Gregor Kasieczka , Robert Klanner , Roman Kogler , Nataliia Kovalchuk , Simon Kurz , Viktor Kutzner , Johannes Lange , Torben Lange , Andrea Malara , Daniele Marconi , Jens Multhaup , Marek Niedziela , Caroline Elisabeth Niniane Niemeyer , Dominik Nowatschin , Adrian Perieanu , Arne Reimers , Oliver Rieger , Christian Scharf , Peter Schleper , Svenja Schumann , Joern Schwandt , Jory Sonneveld , Hartmut Stadie , Georg Steinbrück , Fred-Markus Helmut Stober , Marc Stöver , Benedikt Vormwald , Irene Zoi , Melike Akbiyik , Christian Barth , Marta Baselga , Sebastian Baur , Thomas Berger , Erik Butz , René Caspart , Thorsten Chwalek , Wim de Boer , Alexander Dierlamm , Karim El Morabit , Nils Faltermann , Manuel Giffels , Pablo Goldenzweig , Artur Gottmann , Marco Alexander Harrendorf , Frank Hartmann , Ulrich Husemann , Simon Kudella , Soureek Mitra , Matthias Ulrich Mozer , Thomas Müller , Marco Musich , Andreas Nürnberg , Gunter Quast , Klaus Rabbertz , Matthias Schröder , Ivan Shvetsov , Hans-Jürgen Simonis , Ralf Ulrich , Marc Weber , Clemens Wöhrmann , Roger Wolf , Georgios Anagnostou , Patrick Asenov , Georgios Daskalakis , Theodoros Geralis , Aristotelis Kyriakis , Demetrios Loukas , Garyfallia Paspalaki , Magda Diamantopoulou , George Karathanasis , Pantelis Kontaxakis , Apostolos Panagiotou , Ioanna Papavergou , Niki Saoulidou , Anna Stakia , Konstantinos Theofilatos , Konstantinos Vellidis , Georgios Bakas , Konstantinos Kousouris , Ioannis Papakrivopoulos , Georgios Tsipolitis , Ioannis Evangelou , Costas Foudas , Paraskevas Gianneios , 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Juliette Alimena , Ben Bylsma , Lloyd Stanley Durkin , Sean Flowers , Brian Francis , Christopher Hill , Weifeng Ji , Anthony Lefeld , Ta-Yung Ling , Brian L Winer , Stephane Cooperstein , Gage Dezoort , Peter Elmer , Joshua Hardenbrook , Nicholas Haubrich , Samuel Higginbotham , Alexis Kalogeropoulos , Stephanie Kwan , David Lange , Marco Toliman Lucchini , Jingyu Luo , Daniel Marlow , Kelvin Mei , Isabel Ojalvo , James Olsen , Christopher Palmer , Pierre Piroué , Jakob Salfeld-Nebgen , David Stickland , Christopher Tully , Zhiming Wang , Sudhir Malik , Scarlet Norberg , Anthony Barker , Virgil E Barnes , Souvik Das , Laszlo Gutay , Matthew Jones , Andreas Werner Jung , Ajeeta Khatiwada , Bibhuprasad Mahakud , David Harry Miller , Giulia Negro , Norbert Neumeister , Cheng-Chieh Peng , Stefan Piperov , Hao Qiu , Jan-Frederik Schulte , Jian Sun , Fuqiang Wang , Rui Xiao , Wei Xie , Tongguang Cheng , James Dolen , Neeti Parashar , Karl Matthew Ecklund , Sarah Freed , Frank Jm Geurts , 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Eusebi , Jason Gilmore , Tao Huang , Teruki Kamon , Sifu Luo , Daniel Marley , Ryan Mueller , David Overton , Luca Perniè , Denis Rathjens , Alexei Safonov , Nural Akchurin , Jordan Damgov , Federico de Guio , Shuichi Kunori , Kamal Lamichhane , Sung Won Lee , Tielige Mengke , Samila Muthumuni , Timo Peltola , Sonaina Undleeb , Igor Volobouev , Zhixing Wang , Andrew Whitbeck , Senta Greene , Alfredo Gurrola , Ravi Janjam , Willard Johns , Charles Maguire , Andrew Melo , Hong Ni , Klaas Padeken , Francesco Romeo , Paul Sheldon , Shengquan Tuo , Julia Velkovska , Marta Verweij , Michael Wayne Arenton , Patrizia Barria , Bradley Cox , Grace Cummings , Robert Hirosky , Matthew Joyce , Alexander Ledovskoy , Christopher Neu , Benjamin Tannenwald , Yanchu Wang , Evan Wolfe , Fan Xia , Robert Harr , Paul Edmund Karchin , Nabin Poudyal , Jared Sturdy , Prakash Thapa , Shawn Zaleski , James Buchanan , Cécile Caillol , Duncan Carlsmith , Sridhara Dasu , Isabelle de Bruyn , Laura Dodd , Bhawna Gomber , Matthew Herndon , Alain Hervé , Usama Hussain , Pamela Klabbers , Armando Lanaro , Andrew Loeliger , Kenneth Long , Richard Loveless , Jithin Madhusudanan Sreekala , Tyler Ruggles , Alexander Savin , Varun Sharma , Wesley H Smith , Dylan Teague , Stephen Trembath-Reichert , Nathaniel Woods

1 IRFU - Institut de Recherches sur les lois Fondamentales de l'Univers
2 LLR - Laboratoire Leprince-Ringuet
3 IPHC - Institut Pluridisciplinaire Hubert Curien
4 Université de Haute-Alsace (UHA) - Université de Haute-Alsace (UHA) Mulhouse - Colmar
5 CC-IN2P3 - Centre de Calcul de l'IN2P3
6 IPNL - Institut de Physique Nucléaire de Lyon

Central exclusive and semiexclusive production of pairs is measured with the CMS detector in proton-proton collisions at the LHC at center-of-mass energies of 5.02 and 13TeV. The theoretical description of these nonperturbative processes, which have not yet been measured in detail at the LHC, poses a significant challenge to models. The two pions are measured and identified in the CMS silicon tracker based on specific energy loss, whereas the absence of other particles is ensured by calorimeter information. The total and differential cross sections of exclusive and semiexclusive central production are measured as functions of invariant mass, transverse momentum, and rapidity of the system in the fiducial region defined as transverse momentum and pseudorapidity . The production cross sections for the four resonant channels [inline-graphic not available: see fulltext], , [inline-graphic not available: see fulltext], and [inline-graphic not available: see fulltext]are extracted using a simple model. These results represent the first measurement of this process at the LHC collision energies of 5.02 and 13TeV.

Mots clés: p p: scattering; p p: colliding beams; pi: pair production; pi: particle identification; CERN LHC Coll; transverse momentum dependence; rapidity dependence; mass dependence; mass spectrum: (pi+ pi-); CMS; differential cross section: measured; total cross section: measured; f0(600); rho(770); f0(980); f2(1270); pi: exclusive production; tracking detector; nonperturbative; calorimeter; energy loss; two-pion; silicon; experimental results; 5020 GeV-cms; 13000 GeV-cms

Domaines: Physique des Hautes Energies - Expérience [hep-ex]

Albert M Sirunyan, Armen Tumasyan, Wolfgang Adam, Federico Ambrogi, Thomas Bergauer, et al.. Study of central exclusive $\pi^+\pi^-$ production in proton-proton collisions at $\sqrt{s} =$ 5.02 and 13 TeV. Eur.Phys.J.C, 2020, 80 (8), pp.718. ⟨10.1140/epjc/s10052-020-8166-5⟩. ⟨hal-02518095⟩