Measurement of exclusive $J/\psi$ and $\psi(2S)$ production at $\sqrt{s}=13$ TeV
Authors: Collaboration LHCb , Aaij Roel , Abdelmotteleb Ahmed Sameh Wagih , Abellan Beteta Carlos , Abudinèn Fernando Jesus , Ackernley Thomas , Adefisoye Ayomide Matthew , Adeva Bernardo , Adinolfi Marco , Adlarson Patrik Harri , Agapopoulou Christina , Aidala Christine , Ajaltouni Ziad , Akar Simon , Akiba Kazuyoshi , Albicocco Pietro , Albrecht Johannes , Alessio Federico , Alexander Michael , Aliouche Zakariya , Alvarez Cartelle Paula , Amalric Renaud , Amato Sandra , Amey Jake Lewis , Amhis Yasmine , An Liupan , Anderlini Lucio , Andersson Martin , Andreianov Aleksei , Andreola Pasquale , Andreotti Mirco , Andreou Dimitra , Anelli Alessia , Ao Dong , Archilli Flavio , Argenton Matteo , Arguedas Cuendis Sergio , Artamonov Alexander , Artuso Marina , Aslanides Elie , Ataíde Da Silva Rita , Atzeni Michele , Audurier Benjamin , Bacher David , Bachiller Perea Irene , Bachmann Sebastian , Bachmayer Marie , Back John , Baladron Rodriguez Pablo , Balagura Vladislav , Baldini Wander , Bao Haoran , Baptista de Souza Leite Juan , Barbetti Matteo , Barbosa Ivanildo Rui , Barlow Roger , Barnyakov Mikhail , Barsuk Sergey , Barter William , Bartolini Matteo , Bartz Justin , Basels Jan-Marc , Bassi Giovanni , Batsukh Baasansuren , Bay Aurelio , Beck Anja , Becker Maik , Bedeschi Franco , Bediaga Ignacio , Belin Samuel , Bellee Violaine , Belous Konstantin , Belov Ilia , Belyaev Ivan , Benane Gaya , Bencivenni Giovanni , Ben-Haim Eli , Berezhnoy Alexander , Bernet Roland , Bernet Andres Sergi , Bertolin Alessandro , Betancourt Christopher , Betti Federico , Bex Josh , Bezshyiko Iaroslava , Bhom Jihyun , Bieker Martin Stefan , Biesuz Nicolo Vladi , Billoir Pierre , Biolchini Alice , Birch Matthew , Bishop Fionn Caitlin Ros , Bitadze Alexander , Bizzeti Andrea , Blake Thomas , Blanc Frederic , Blank Jonah Evan , Blusk Steven , Bocharnikov Vladimir , Boelhauve Julian Alexander , Boente García Óscar , Boettcher Thomas , Bohare Abhishek , Boldyrev Alexey , Bolognani Carolina , Bolzonella Riccardo , Bondar Nikolay , Borgato Federica , Borghi Silvia , Borsato Martino , Borsuk Jozef Tomasz , Bouchiba Sonia Amina , Bowcock Themistocles , Boyer Alexandre , Bozzi Concezio , Braat Pieter , Brea Rodriguez Alexandre , Breer Nils , Brodzicka Jolanta , Brossa Gonzalo Arnau , Brown James David , Brundu Davide , Buchanan Emma , Buonaura Annarita , Buonincontri Laura , Burke Aodhan Tomas , Burr Christopher , Butkevich Anatoly , Butter Jordy Sebastiaan , Buytaert Jan , Byczynski Wiktor , Cadeddu Sandro , Cai Hao , Calabrese Roberto , Calderon Ramirez Saul , Calefice Lukas , Cali Stefano , Calvi Marta , Calvo Gomez Miriam , Camargo Magalhaes Patricia , Cambon Bouzas Jose Ivan , Campana Pierluigi , Campora Perez Daniel Hugo , Campoverde Quezada Angel Fernando , Capelli Simone , Capriotti Lorenzo , Caravaca-Mora Ronald Gerardo , Carbone Angelo , Carcedo Salgado Lidia , Cardinale Roberta , Cardini Alessandro , Carniti Paolo , Carus Leon David , Casais Vidal Adrián , Caspary Rowina , Casse Gianluigi , Castro Godinez Jorge , Cattaneo Marco , Cavallero Giovanni , Cavallini Viola , Celani Sara , Cervenkov Daniel , Cesare Sara , Chadwick Abbie Jane , Chahrour Ibrahim , Charles Matthew , Charpentier Philippe , Chatzianagnostou Evridki , Chavez Barajas Carlos Alberto , Chefdeville Maximilien , Chen Chen , Chen Shanzhen , Chen Zewen , Chernov Aleksei , Chernyshenko Serhii , Chobanova Veronika , Cholak Serhii , Chrzaszcz Marcin , Chubykin Aleksei , Chulikov Vladimir , Ciambrone Paolo , Cid Vidal Xabier , Ciezarek Gregory , Cifra Pierfrancesco , Clarke Peter , Clemencic Marco , Cliff Harry , Closier Joel , Cocha Toapaxi Carlos Eduardo , Coco Victor , Cogan Julien , Cogneras Eric , Cojocariu Lucian , Collins Paula , Colombo Tommaso , Comerma-Montells Albert , Congedo Liliana , Contu Andrea , Cooke Naomi , Corredoira Imanol , Correia Anthony , Corti Gloria , Cottee Meldrum Josephine Jane , Couturier Benjamin , Craik Daniel Charles , Cruz Torres Melissa Maria , Curras Rivera Esteban , Currie Robert , Da Silva Cesar Luiz , Dadabaev Shakhzod , Dai Lingyun , Dai Xinchen , Dall'Occo Elena , Dalseno Jeremy , D'Ambrosio Carmelo , Daniel Jessy , Danilina Anna , d'Argent Philippe , Davidson Alexander , Davies Jonathan Edward , Davis Adam , De Aguiar Francisco Oscar , De Angelis Camilla , De Benedetti Federico , de Boer Jan , De Bruyn Kristof , De Capua Stefano , De Cian Michel , De Freitas Carneiro Da Graca Ulisses , De Lucia Erika , De Miranda Jussara , De Paula Leandro , De Serio Marilisa , De Simone Patrizia , De Vellis Fabio , de Vries Jacco , Debernardis Francesco , Decamp Daniel , Dedu Vlad-George , Del Buono Luigi , Delaney Blaise , Dembinski Hans , Deng Jianqiao , Denysenko Vadym , Deschamps Olivier , Dettori Francesco , Dey Biplab , Di Nezza Pasquale , Diachkov Igor , Didenko Sergey , Ding Shuchong , Dittmann Lucas , Dobishuk Vasyl , Docheva Aleksandrina , Dong Chenzhi , Donohoe Amanda May , Dordei Francesca , dos Reis Alberto , Dowling Andrew Jay , Duan Weisong , Duda Piotr Jakub , Dudek Maciej Wojciech , Dufour Laurent , Duk Viacheslav , Durante Paolo , Duras Maciej , Durham John Matthew , Durmus Ozgur , Dziurda Agnieszka , Dzyuba Alexey , Easo Sajan , Eckstein Ellinor , Egede Ulrik , Egorychev Artem , Egorychev Victor , Eisenhardt Stephan , Ejopu Enoch , Eklund Lars , Elashri Mohamed , Ellbracht Jan Hendrik , Ely Scott , Ene Alexandru , Epple Eliane , Eschle Jonas Nathanael , Esen Sevda , Evans Timothy , Fabiano Federica , Falcao Lucas , Fan Yanting , Fang Bo , Fantini Lisa , Faria Maria , Farmer Keira Gwyn , Fazzini Davide , Felkowski Lukasz Jerzy , Feng Mingjie , Feo Mauricio , Fernandez Gomez Miguel , Fernez Alex Daniel , Ferrari Fabio , Ferreira Rodrigues Fernando , Ferrillo Martina , Ferro-Luzzi Massimiliano , Filippov Sergey , Fini Rosa Anna , Fiorini Massimiliano , Fischer Kamil Leszek , Fitzgerald Dillon , Fitzpatrick Conor , Fleuret Frederic , Fontana Marianna , Foreman Lucas Arthur , Forty Roger , Foulds-Holt Daniel , Franco Sevilla Manuel , Frank Markus , Franzoso Edoardo , Frau Giulia , Frei Christoph , Friday David Anthony , Fu Jinlin , Fuehring Quentin , Fujii Yuki , Fulghesu Tommaso , Gabriel Emmy , Galati Giuliana , Galati Maria Domenica , Gallas Torreira Abraham , Galli Domenico , Gambetta Silvia , Gandelman Miriam , Gandini Paolo , Ganie Bilal Ahmad , Gao Han , Gao Rui , Gao Yang , Gao Yuanning , Gao Yuxi , Garau Michela , Garcia Martin Luis Miguel , Garcia Moreno Paula , García Pardiñas Julián , Garg Kunal , Garrido Lluis , Gaspar Clara , Geertsema Robbert Erik , Gerken Louis Lenard , Gersabeck Evelina , Gersabeck Marco , Gershon Timothy , Ghorbanimoghaddam Zahra , Giambastiani Luca , Giasemis Fotis Ioannis , Gibson Valerie , Giemza Henryk Karol , Gilman Alexander Leon , Giovannetti Matteo , Gioventù Alessandra , Gironella Gironell Pere , Giugliano Carmen , Giza Maciej Artur , Gkougkousis Evangelos Leonidas , Glaser Fabian Christoph , Gligorov Vladimir , Göbel Carla , Golobardes Elisabet , Golubkov Dmitry , Golutvin Andrey , Gomes Alvaro , Gomez Fernandez Sergio , Goncalves Abrantes Fernanda , Goncerz Mateusz , Gong Guanghua , Gooding James Andrew , Gorelov Igor Vladimirovich , Gotti Claudio , Grabowski Jascha Peter , Granado Cardoso Luis Alberto , Graugès Eugeni , Graverini Elena , Grazette Luke , Graziani Giacomo , Grecu Alexandru Tudor , Greeven Lex Marinus , Grieser Nathan Allen , Grillo Lucia , Gromov Sergey , Gu Chenxi , Guarise Marco , Guittiere Manuel , Guliaeva Vasilisa , Günther Paul Andre , Guseinov Abdul-Kerim , Gushchin Evgeny , Guz Yury , Gys Thierry , Habermann Kai Sebastian , Hadavizadeh Thomas , Hadjivasiliou Christos , Haefeli Guido , Haen Christophe , Haimberger Jakob , Hajheidari Mohammadtaghi , Halvorsen Marius Maehlum , Hamilton Phoebe Meredith , Hammerich Jan , Han Qundong , Han Xiaoxue , Hansmann-Menzemer Stephanie , Hao Lei , Harnew Neville , Hartmann Marie , He Jibo , Hemmer Frederic , Henderson Conor , Henderson Riley Dylan Leslie , Hennequin Arthur Marius , Hennessy Karol , Henry Louis , Herd James Daniel , Herrero Gascon Paula , Heuel Johannes , Hicheur Adlène , Hijano Mendizabal Guillermo , Hill Donal , Hollitt Sophie , Horswill Joshua Ethan , Hou Ruiwen , Hou Yingrui , Howarth Ned Francis , Hu Jiangqiao , Hu Jifeng , Hu Wenhua , Hu Xiaofan , Huang Wenqian , Hulsbergen Wouter , Hunter Ross John , Hushchyn Mikhail , Hutchcroft David , Ilin Dmitrii , Ilten Philip , Inglessi Alexander , Iniukhin Aleksandr , Ishteev Artur , Ivshin Kuzma , Jacobsson Richard , Jage Hendrik , Jaimes Elles Sergio Javier , Jakobsen Sune , Jans Eddy , Jashal Brij Kishor , Jawahery Abolhassan , Jevtic Vukan , Jiang Emily Kaiyin , Jiang Xiaojie , Jiang Yi , Jiang Yuyang , John Malcolm , Johnson Daniel , Jones Christopher , Jones Thomas Peter , Joshi Salil , Jost Beat , Jurik Nathan , Juszczak Izabela , Kaminaris Dimitrios , Kandybei Sergii , Kane Michael James , Kang Youen , Kar Chandiprasad , Karacson Matthias , Karpenkov Dmitrii , Kauniskangas 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Leflat Alexander , Legotin Sergey , Lehuraux Marion , Lemos Cid Edgar , Leroy Olivier , Lesiak Tadeusz , Leverington Blake , Li Anfeng , Li Hengne , Li Kechen , Li Lanxing , Li Peilian , Li Pei-Rong , Li Qinze , Li Shiyang , Li Tiange , Li Tianqi , Li Yanru , Li Yiming , Lian Zhengchen , Liang Xixin , Libralon Simone , Lin Chuangxin , Lin Tai-hua , Lindner Rolf , Lisovskyi Vitalii , Litvinov Roman , Liu Frank Xiangyu , Liu Guoming , Liu Kai , Liu Shuaiyi , Liu Yiming , Liu Ying , Liu Yiwei , Lobo Salvia Aniol , Loi Angelo , Lomba Castro Julian , Long Thomas , Lopes Jose , Lopez Huertas Albert , López Soliño Saúl , Loya Villalpando Alvaro , Lucarelli Chiara , Lucchesi Donatella , Lucio Martinez Miriam , Lukashenko Valeriia , Luo Yiheng , Lupato Anna , Luppi Eleonora , Lynch Kate , Lyu Xiao-Rui , Ma Ge , Ma Ruiting , Maccolini Serena , Machefert Frederic , Maciuc Florin , Mack Bridget , Mackay Innes , Mackey Lauren Grace , Madhan Mohan Lakshan Ram , Madurai Marcus Jonathan , Maevskiy Artem , Magdalinski Daniel , Maisuzenko Dmitrii , Majewski Maciej Witold , Malczewski Jakub Jacek , Malde Sneha , Malentacca Lorenzo , Malinin Alexander , Maltsev Timofei , Manca Giulia , Mancinelli Giampiero , Mancuso Chiara , Manera Escalero Rafel , Manuzzi Daniele , Marangotto Daniele , Marchand Jean François , Marchevski Radoslav , Marconi Umberto , Mariani Saverio , Marin Benito Carla , Marks Jörg , Marshall Alexander Mclean , Martelli Gabriele , Martellotti Giuseppe , Martinazzoli Loris , Martinelli Maurizio , Martinez Santos Diego , Martinez Vidal Fernando , Massafferri Andrè , Matev Rosen , Mathad Abhijit , Matiunin Viacheslav , Matteuzzi Clara , Mattioli Kara Renee , Mauri Andrea , Maurice Emilie , Mauricio Joan , Mayencourt Pierre Paul Louis , Mazurek Michal , McCann Michael , Mcconnell Lucas , McGrath Tamaki Holly , McHugh Niall Thomas , McNab Andrew , McNulty Ronan , Meadows Brian , Meier Gerwin , Melnychuk Dmytro , Meng Fanjie , Merk Marcel , Merli Andrea , Meyer Garcia 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Jacob , Pham Hang , Pica Lorenzo , Piccini Mauro , Pietrzyk Boleslaw , Pietrzyk Guillaume , Pinci Davide , Pisani Flavio , Pizzichemi Marco , Placinta Vlad-Mihai , Plo Casasus Maximo , Polci Francesco , Poli Lener Marco , Poluektov Anton , Polukhina Natalia , Polyakov Ivan , Polycarpo Erica , Ponce Sebastien , Popov Dmitry , Poslavskii Stanislav , Prasanth Kodassery , Prouve Claire , Pugatch Valery , Punzi Giovanni , Qasim Shah Rukh , Qian Qucheng , Qian Wenbin , Qin Ning , Qu Sanqiang , Quagliani Renato , Rabadan Trejo Raul Iraq , Rademacker Jonas , Rama Matteo , Ramírez García Manuel , Ramos De Oliveira Victoria , Ramos Pernas Miguel , Rangel Murilo , Ratnikov Fedor , Raven Gerhard , Rebollo De Miguel Miguel , Redi Federico , Reich Jake , Reiss Florian , Ren Zan , Resmi P.K. , Ribatti Roberto , Ricart Gabriel , Riccardi Domenico , Ricciardi Stefania , Richardson Kate Abigail , Richardson-Slipper Mary , Rinnert Kurt , Robbe Patrick , Robertson Gary , Rodrigues Eduardo , Rodriguez 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Stefan , Scherl Sigrid , Schiller Manuel , Schindler Heinrich , Schmelling Michael , Schmidt Burkhard , Schmitt Sebastian , Schmitz Hannah , Schneider Olivier , Schopper Andreas , Schubiger Maxime , Schulte Nicole , Schulte Sebastian , Schune Marie Helene , Schwemmer Rainer , Schwering Georg , Sciascia Barbara , Sciuccati Augusto , Sellam Sara , Semennikov Alexander , Senger Thomas Christian , Senghi Soares Mara , Sergi Antonino , Serra Nicola , Sestini Lorenzo , Seuthe Alex , Shang Yiduo , Shangase Desmond Mzamo , Shapkin Mikhail , Sharma Rashi , Shchemerov Ivan , Shchutska Lesya , Shears Tara , Shekhtman Lev , Shen Zhihong , Sheng Shuqi , Shevchenko Vladimir , Shi Boan , Shi Qi , Shimizu Yuya , Shmanin Evgenii , Shorkin Roman , Shupperd Joseph David , Silva Coutinho Rafael , Simi Gabriele , Simone Saverio , Skidmore Nicola , Skwarnicki Tomasz , Slater Mark , Smallwood Jennifer Clare , Smith Eluned , Smith Krista Lizbeth , Smith Mark , Snoch Aleksandra , Soares Lavra Lais , Sokoloff Michael , Soler Paul , Solomin Anatoly , Solovev Aleksandr , Solovyev Ivan , Song Rongrong , Song Yunxuan , Song Yuxiang , Song Yintong , Souza De Almeida Felipe Luan , Souza De Paula Bruno , Spadaro Norella Elisabetta , Spedicato Eugenia , Speer Jannis Guido , Spiridenkov Eduard , Spradlin Patrick , Sriskaran Viros , Stagni Federico , Stahl Marian , Stahl Sascha , Stanislaus Seophine , Stein Eloise Noelle , Steinkamp Olaf , Stenyakin Oleg , Stevens Holger , Strekalina Daria , Su Yangjie , Suljik Fidan , Sun Jiayin , Sun Liang , Sun Yipeng , Sundfeld Daniel , Sutcliffe William , Swallow Paul Nathaniel , Swystun Francesca , Szabelski Adam , Szumlak Tomasz , Tan Yinghua , Tat Martin Duy , Terentev Aleksandr , Terzuoli Francesco , Teubert Frederic , Thomas Eric , Thompson Daniel James David , Tilquin Hanae , Tisserand Vincent , T'Jampens Stephane , Tobin Mark , Tomassetti Luca , Tonani Giorgia , Tong Xingyu , Torres Machado Diego , Toscano Luca , Tou Da Yu , Trippl Carina , Tuci Giulia , Tuning Niels , Uecker Lennart Henning , Ukleja Artur , Unverzagt Daniel Joachim , Ursov Eduard , Usachov Andrii , Ustyuzhanin Andrey , Uwer Ulrich , Vagnoni Vincenzo , Valenti Giovanni , Valls Canudas Nuria , Van Hecke Hubert , van Herwijnen Eric , Van Hulse Charlotte Barbara , Van Laak Raphael , van Veghel Maarten , Vasquez Gerardo , Vazquez Gomez Ricardo , Vazquez Regueiro Pablo , Vázquez Sierra Carlos , Vecchi Stefania , Velthuis Jaap , Veltri Michele , Venkateswaran Aravindhan , Vesterinen Mika , Vieites Diaz Maria , Vilasis-Cardona Xavier , Vilella Figueras Eva , Villa Andrea , Vincent Pascal , Volle Felicia Carolin , vom Bruch Dorothea , Voropaev Nikolai , Vos Kimberley , Vouters Guillaume , Vrahas Constantinos , Wagner Jan Peter , Walsh John , Walton Eliot Jane , Wan Guanyue , Wang Chishuai , Wang Ganrong , Wang Jialu , Wang Jianchun , Wang Jianqiao , Wang Jike , Wang Mengzhen , Wang Nanyang , Wang Rui , Wang Xiao , Wang Xiaolin , Wang Xiaohan , Wang Yuhao , Wang Zhenzi , Wang Zirui , Wang Ziyi , Ward Jake Alexander , Waterlaat Mark , Watson Nigel , Websdale David , Wei Yajing , Wendel John , Westhenry Benedict Donald C , White Dylan Jaide , Whitehead Mark , Whiter Eleanor , Wiederhold Aidan Richard , Wiedner Dirk , Wilkinson Guy , Wilkinson Michael K. , Williams Mike , Williams Mark Richard James , Williams Richard Morgan , Wilson Fergus , Wislicki Wojciech , Witek Mariusz , Witola Lukas , Wong Cheuk Ping , Wormser Guy , Wotton Stephen , Wu Hangyi , Wu Jie , Wu Yanxi , Wu Zhenhong , Wyllie Kenneth , Xian Shu , Xiang Zhiyu , Xie Yuehong , Xu Ao , Xu Jingyi , Xu Li , Xu Liangjun , Xu Menglin , Xu Zehua , Xu Zhihao , Xu Zijun , Yang Di , Yang Kang , Yang Shuangli , Yang Xueting , Yang Youhua , Yang Zhenwei , Yang Zishuo , Yeroshenko Vsevolod , Yeung Ho Yin Dereck , Yin Hang , Yu Chenxu , Yu Jiesheng , Yuan Xuhao , Zaffaroni Ettore , Zavertyaev Mikhail , Zdybal Milosz , Zeng Cheng , Zeng Ming , Zhang Chenjia , Zhang Dongliang , Zhang Jianyu , Zhang Liming , Zhang Shulei , Zhang Shunan , Zhang Yanxi , Zhang Yuge , Zhao Ya , Zharkova Alina , Zhelezov Alexey , Zheng Shuang , Zheng Xutao , Zheng Yangheng , Zhou Tianwen , Zhou Xiaokang , Zhou Yixiong , Zhovkovska Valeriia , Zhu Linxuan , Zhu Xianglei , Zhu Xiaoyu , Zhukov Valery , Zhuo Jiahui , Zou Quan , Zuliani Davide , Zunica Gianluca 
Published: February 2025

Measurements are presented of the cross-section for the central exclusive production of J/\psi\to\mu^+\mu^-J/ψ→μ+μ− and \psi(2S)\to\mu^+\mu^-ψ(2S)→μ+μ− processes in proton-proton collisions at \sqrt{s} = 13 \ \mathrm{TeV}s=13TeV with 2016–2018 data. They are performed by requiring both muons to be in the LHCb acceptance (with pseudorapidity 2<\eta_{\mu^±} < 4.52<ημ±<4.5) and mesons in the rapidity range 2.0 < y < 4.52.0<y<4.5. The integrated cross-section results are \sigma_{J/\psi\to\mu^+\mu^-}(2.0<y_{J/\psi}<4.5,2.0<\eta_{\mu^{±}} < 4.5) = 400 ± 2 ± 5 ± 12 \mathrm{pb}, \ \sigma_{\psi(2S)\to\mu^+\mu^-}(2.0<y_{\psi(2S)}<4.5,2.0<\eta_{\mu^{±}} < 4.5) = 9.40 ± 0.15 ± 0.13 ± 0.27 \mathrm{pb},σJ/ψ→μ+μ−(2.0<yJ/ψ<4.5,2.0<ημ±<4.5)=400±2±5±12pb,σψ(2S)→μ+μ−(2.0<yψ(2S)<4.5,2.0<ημ±<4.5)=9.40±0.15±0.13±0.27pb, where the uncertainties are statistical, systematic and due to the luminosity determination. In addition, a measurement of the ratio of \psi(2S)ψ(2S) and J/\psiJ/ψ cross-sections, at an average photon-proton centre-of-mass energy of 1\ \mathrm{TeV}1TeV, is performed, giving$ = 0.1763 ± 0.0029 ± 0.0008 ± 0.0039,$ where the first uncertainty is statistical, the second systematic and the third due to the knowledge of the involved branching fractions. For the first time, the dependence of the J/\psiJ/ψ and \psi(2S)ψ(2S) cross-sections on the total transverse momentum transfer is determined in pppp collisions and is found consistent with the behaviour observed in electron-proton collisions.