Evidence for light-by-light scattering and searches for axion-like particles in ultraperipheral PbPb collisions at sNN=5.02TeV

@article{Sirunyan2019EvidenceFL,
  title={Evidence for light-by-light scattering and searches for axion-like particles in ultraperipheral PbPb collisions at sNN=5.02TeV},
  author={Albert M. Sirunyan and Armen Tumasyan and W. Adam and Federico Ambrogi and E. Asilar and Thomas Bergauer and Johannes Brandstetter and M. Dragicevic and J{\'a}nos Er{\"o} and A. Escalante Del Valle and Martin Flechl and Rudolf Fr{\"u}hwirth and Vasile Mihai Ghete and Josef Hrubec and Manfred Jeitler and Natascha Krammer and I. Kr{\"a}tschmer and Dietrich Liko and Thomas Madlener and Ivan Mikulec and Navid K. Rad and Herbert Rohringer and J. Schieck and R. Sch{\"o}fbeck and Markus Spanring and D. Spitzbart and Anton Taurok and Wolfgang Waltenberger and Johannes Wittmann and Claudia-elisabeth Wulz and Mateusz Zarucki and Vladimir Chekhovsky and Vladimir Mossolov and Jes{\'u}s Su{\'a}rez Gonz{\'a}lez and E. A. De Wolf and Davide Di Croce and X. Janssen and Jasper Lauwers and Maxim Pieters and H. Van Haevermaet and P. Van Mechelen and N. Van Remortel and Sawsan T. Abu Zeid and F. Blekman and Jorgen D'Hondt and I. De Bruyn and J. De Clercq and Kevin Deroover and Giannis Flouris and Denys Lontkovskyi and Steven Lowette and Ivan Marchesini and Seth Moortgat and L Moreels and Q. Python and K. Skovpen and Stefaan Tavernier and W. Van Doninck and P. Van Mulders and I. Van Parijs and Diego Beghin and B. Bilin and Hugues Brun and Barbara Clerbaux and Gilles De Lentdecker and Hugo Delannoy and Brian Dorney and Giuseppe Fasanella and L. Favart and Reza Goldouzian and Anastasia Grebenyuk and A. K. Kalsi and Thomas Lenzi and Jelena Lueti{\'c} and Nicolas Postiau and E. Starling and L. Thomas and C. Vander Velde and P. Vanlaer and David Vannerom and Q. Wang and T. Cornelis and Didar Dobur and Alexis Fagot and M. Gul and Illia Khvastunov and Deniz Poyraz and Christos Roskas and D. Trocino and M. Tytgat and Willem Verbeke and Basile Vermassen and Martina Vit and Nicolas Zaganidis and H. Bakhshiansohi and O Bondu and S{\'e}bastien Brochet and Giacomo Bruno and C. Caputo and P. David and Christophe Delaere and M. Delcourt and Brieuc François and Andrea Giammanco and G. Krintiras and Vincent Lema{\^i}tre and Alessio Magitteri and Alexandre Mertens and Marco Musich and Krzysztof Piotrzkowski and Alessia Saggio and M Vidal Marono and S. Wertz and Joze Zobec and F. L. Lucio Alves and G. A. Alves and M. Correa Martins Junior and G. Correia Silva and Carsten Hensel and A. Moraes and M. E. Pol and P. Rebello Teles and E. Belchior Batista Das Chagas and W. Carvalho and Jose Augusto Chinellato and Eduardo Coelho and E. M. Da Costa and G. G. Da Silveira and D. De Jesus Damiao and Caroline Alves de Oliveira Martins and S. Fonseca De Souza and H. Brandao Malbouisson and D. Matos Figueiredo and M. Melo De Almeida and C. Mora Herrera and L. Mundim and Helio Nogima and W.L. Prado Da Silva and L. J. Sanchez Rosas and Alberto F. S. Santoro and A. Sznajder and Mauricio Thiel and E. J. Tonelli Manganote and F. Torres Da Silva De Araujo and A. Vilela Pereira and S. Ahuja and C. A. Bernardes and Luigi Calligaris and T.R. Fernandez Perez Tomei and E. M. Gregores and P. G. Mercadante and Sergio Ferraz Novaes and Sandra S. Padula and Aleksandar Aleksandrov and Roumyana Mileva Hadjiiska and Plamen Iaydjiev and Andrey Marinov and Milena Misheva and Mircho Rodozov and Mariana Shopova and Georgi Sultanov and Anton Dimitrov and L. Litov and Borislav Pavlov and Peicho Petkov and W. Fang and X. Gao and L. J. Yuan and M. Ahmad and J.G. Bian and G.M. Chen and H.S. Chen and M. Chen and Y. Chen and C.H. Jiang and Duncan Leggat and H. Liao and Z. Liu and Francesco Romeo and Sarmad Masood Shaheen and Aniello Spiezia and J. Tao and Z. Wang and E. Yazgan and H. Zhang and S. Zhang and J. Zhao and Yong Ban and G. Chen and A. Levin and J. Li and L. Li and Q. Li and Y. Mao and S.J. Qian and D. Wang and Z. Xu and Y. Wang and C. Avila and Andr{\'e}s Cabrera and C. A. Carrillo Montoya and L F Chaparro Sierra and C. Florez and C. F. Gonz{\'a}lez Hern{\'a}ndez and M. A. Segura Delgado and Benoit Courbon and N. Godinovi{\'c} and D. Lelas and I. Puljak and Toni Šćulac and Željko Antunović and Marko Kova{\vc} and Vuko Brigljevic and D. Ferencek and Kre{\vs}o Kadija and Benjamin Mesi{\'c} and Andrei N. Starodumov and T. Susa and Mohsan Waseem Ather and Alexandros Attikis and Marina Kolosova and G. Mavromanolakis and J. Mousa and Charalambos Nicolaou and F. Ptochos and Panos A. Razis and Hans Rykaczewski and Marcelo Finger and Edy Ayala and E. Carrera Jarrin and A. Ellithi Kamel and M.A. Mahmoud and Y. Mohammed and S. Bhowmik and A. Carvalho Antunes De Oliveira and R. K. Dewanjee and Karl Ehataht and Mario Kadastik and Martti Raidal and Christian Veelken and Paula Eerola and H. Kirschenmann and Juska Tomi Kaleva Pekkanen and Mikko Voutilainen and Joona Havukainen and J. K. Heikkil{\"a} and T. J{\"a}rvinen and Veikko Karim{\"a}ki and Ritva Kinnunen and Tapio Lamp{\'e}n and Kati Lassila-Perini and Santeri Laurila and Sami Lehti and Tomas Lind{\'e}n and Panja Luukka and Teppo Mäenpää and Hannu Siikonen and E. Tuominen and Jorma Tuominiemi and Tuure Tuuva and Marc Besançon and F. Couderc and Marc D{\'e}jardin and Daniel Denegri and J{\'e}r{\^o}me Faure and F. Ferri and Serguei Ganjour and Alain Givernaud and Philippe Gras and G. Hamel de Monchenault and Patrick Jarry and Cl{\'e}ment Leloup and E. Locci and Julie Malcl{\`e}s and Giulia Negro and John Rander and Andr{\'e} Rosowsky and Mehmet {\"O}zg{\"u}r Sahin and M. Titov and Abdulla Abdulsalam and C. Amendola and Iurii Antropov and F. Beaudette and Philippe Busson and C. Charlot and R. Granier de Cassagnac and I. Kucher and A. Lobanov and J. Martin Blanco and Carlos Mart{\'i}n P{\'e}rez and M. Nguyen and Christophe Ochando and G. Ortona and P. Paganini and Philipp Pigard and Jonas Rembser and R. Salerno and J. B. Sauvan and Y. Sirois and A.G. Stahl Leiton and Alexandre Zabi and Amina Zghiche and J.-L. Agram and J{\'e}r{\'e}my Andrea and D. Bloch and Jean-Marie Brom and Eric Christian Chabert and Vladimir A. Cherepanov and C. Collard and Eric Conte and J.-C. Fontaine and Denis Gel{\'e} and Ulrich Goerlach and Mark{\'e}ta Jansov{\'a} and A. -C. Le Bihan and N. Tonon and Patrick Van Hove and S{\'e}bastien Gadrat and S. Beauceron and Colin Bernet and Gaelle Boudoul and N. Chanon and Roberto Chierici and Didier Contardo and P. Depasse and H. El Mamouni and Jean Fay and L. Finco and Susan Gascon and Maxime Gouzevitch and G{\'e}rald Grenier and Bernard Ille and François Lagarde and I. B. Laktineh and Hugues Lattaud and M. Lethuillier and Laurent Mirabito and St{\'e}phane Perries and A. Popov and V. Sordini and Gaël Touquet and Marie Vander Donckt and Sebastien Viret and Tengizi Toriashvili and Z. Tsamalaidze and Christian Autermann and L. Feld and Maximilian Knut Kiesel and K Klein and Martin Lipinski and Marius Preuten and Max Philip Rauch and Christian Schomakers and Johannes Schulz and M. Teroerde and Bruno Wittmer and Valery Zhukov and A. Albert and Deborah Duchardt and Matthias Endres and Martin Erdmann and S. Ghosh and Andreas G{\"u}th and T. Hebbeker and C Heidemann and Kerstin Hoepfner and H. Keller and Luca Mastrolorenzo and M. Merschmeyer and A. Meyer and Philipp Millet and S. Mukherjee and T. Pook and Markus Radziej and Hans Reithler and Marcel Rieger and A. Schmidt and Daniel Teyssier and G{\"u}nter Fl{\"u}gge and Olena Hlushchenko and Thomas Kress and Andreas K{\"u}nsken and T. M{\"u}ller and A Nehrkorn and A. Nowack and Claudia Pistone and Oliver Pooth and D. Roy and Hale Sert and A. Stahl and M. Aldaya Martin and Till Michael Arndt and Chayanit Asawatangtrakuldee and I. Babounikau and Kelly Beernaert and Olaf Behnke and Ulf Behrens and A. Berm{\'u}dez Mart{\'i}nez and D Bertsche and A.A. Bin Anuar and Kerstin Borras and Valeria Botta and A. Campbell and Patrick L. S. Connor and Christian Contreras-Campana and Vladyslav Danilov and Anne De Wit and Matteo Maria Defranchis and C. Diez Pardos and D. Dom{\'i}nguez Damiani and Guenter Eckerlin and Thomas Eichhorn and A. Elwood and Engin Eren and Ettore Gallo and Achim Geiser and A. Grohsjean and Moritz Guthoff and M. Haranko and Ali Harb and Johannes Hauk and H. Jung and Matthias Kasemann and James Keaveney and C. Kleinwort and J. Knolle and Dirk Kr{\"u}cker and Wolfgang Lange and Aleksandra Lelek and T. Lenz and J Leonard and Katerina Lipka and Wolfgang Lohmann and Rainer Mankel and Isabell-Alissandra Melzer-Pellmann and A.B. Meyer and M. Meyer and M. Missiroli and Gregor Mittag and J. Mnich and V. Myronenko and Svenja Karen Pflitsch and Daniel Pitzl and Alexei Raspereza and Mykola Savitskyi and Pooja Saxena and Paul Sch{\"u}tze and C. Schwanenberger and R. Shevchenko and A. Singh and H. Tholen and O. Turkot and Antonio Vagnerini and G.P. Van Onsem and Roberval Walsh and Y. Wen and Katarzyna Wichmann and Christoph Wissing and O. Zenaiev and R. Aggleton and Samuel Louis Bein and Lisa Benato and Anna Benecke and Volker Blobel and T. Dreyer and E. Garutti and D. Gonzalez and Paolo Gunnellini and J. Haller and A. Hinzmann and Anastasia Karavdina and Gregor Kasieczka and R. Klanner and Roman Kogler and N. Kovalchuk and S. Kurz and Viktor Kutzner and J. Lange and Daniele Marconi and Jens Multhaup and Marek Niedziela and Caroline Elisabeth Niniane Niemeyer and Dominik Nowatschin and Adrian Perieanu and Arne Reimers and Oliver Rieger and C. Scharf and P. Schleper and Svenja Schumann and J. Schwandt and Jory Sonneveld and H. Stadie and Georg Steinbr{\"u}ck and Fred Stober and M St{\"o}ver and Annika Vanhoefer and B. Vormwald and Irene Zoi and M. Akbiyik and Christian Barth and Marta Baselga and Sebastian Baur and E. Butz and Ren{\'e} Caspart and Thorsten Chwalek and Fabio Colombo and Wim de Boer and Alexander Dierlamm and K. El Morabit and N. Faltermann and B. Freund and Manuel Giffels and M A Harrendorf and F. Hartmann and S M Heindl and U. Husemann and Florian Kassel and Igor I Katkov and Simon Kudella and H. Mildner and S. Mitra and Matthias Ulrich Mozer and Th. M{\"u}ller and Michael Plagge and G{\"u}nter Quast and K. Rabbertz and M. Schr{\"o}der and Ivan Shvetsov and Georg Sieber and H. J. Simonis and R. Ulrich and Stefan Wayand and M. Weber and Thomas Weiler and Shawn Williamson and Clemens W{\"o}hrmann and R. Wolf and Georgios Anagnostou and Georgios Daskalakis and T. Geralis and Aristotelis Kyriakis and Demetrios Loukas and Garyfallia Paspalaki and I. Topsis-giotis and George Karathanasis and Stilianos Isaak Kesisoglou and Pantelis Kontaxakis and Apostolos D. Panagiotou and Ioanna Papavergou and Niki Saoulidou and Eirini Tziaferi and Konstantinos Vellidis and K. 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Nayak and Deepak kumar Sahoo and S. K. Swain and Sunil Bansal and Suman Bala Beri and Vipin Bhatnagar and S. Chauhan and Ridhi Chawla and Nitish K Dhingra and R. Gupta and A. Kaur and M. Kaur and S. Kaur and R. Kumar and Priyanka Kumari and Manisha Lohan and A. Mehta and K. Goel Sandeep and S. Sharma and J.B. Singh and A. K. Virdi and Genius Walia and Ashutosh Bhardwaj and B. C. Choudhary and R.B. Garg and Mohit Gola and S. Keshri and Ashok Kumar and Shivali Malhotra and M. Naimuddin and Priyanka Priyanka and K. Ranjan and Aashaq Shah and R. Sharma and Rishika Bhardwaj and Monika Bharti and Rajarshi Bhattacharya and S. Bhattacharya and U. Bhawandeep and Debabrata Bhowmik and S. Dey and Suneel Dutt and S. Dutta and Kuntal Mondal and Saswati Nandan and Arnab Purohit and Prasant Kumar Rout and A. Roy and S. Roy Chowdhury and Gourab Saha and S. Sarkar and Manoj Kumar Sharan and B. K. Singh and S. Thakur and Prafulla Kumar Behera and Ruchi Chudasama and D. Dutta and Vishwajeet Jha and V. 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Pacher and Nadia Pastrone and M. Pelliccioni and G. L. Pinna Angioni and A. Romero and Marta Ruspa and Roberto Sacchi and Ksenia Shchelina and V. Sola and Ada Solano and D. Soldi and Amedeo Staiano and S. Belforte and V. Candelise and M. Casarsa and F. Cossutti and A. Da Rold and G. Della Ricca and F. Vazzoler and A. Zanetti and Dh. Kim and G.N. Kim and M.-S. Kim and J. Lee and S. Lee and S.W. Lee and C. S. Moon and Y.D. Oh and Sang Il Pak and Sezen Sekmen and D.C. Son and Yc Yang and H. Kim and D. H. Moon and Geonhee Oh and J. Goh and T.J. Kim and S. Cho and S. Choi and Yeonju Go and Dooyeon Gyun and S. Ha and B. Hong and Y. Jo and K. Lee and Ks Lee and J. Lim and S.K. Park and Youn Jung Roh and H.S. Kim and John Leslie Almond and J. Kim and J.-S. Kim and H. Lee and K. Nam and S.B. Oh and B. C. Radburn-Smith and S.h. Seo and Un-ki Yang and H.D. Yoo and G.B. Yu and Dajeong Jeon and J.-H. Kim and J.S.H. Lee and I.C. Park and Y. Choi and C. Hwang and I. Skovpen Yu and Vytautas Dudenas and A. Juodagalvis and J. Vaitkus and I. Ahmed and Zainol Abidin Ibrahim and M. A. B. Md Ali and F. Mohamad Idris and Wan Ahmad Tajuddin Wan Abdullah and Mohd Nizam Yusli and Zukhaimira Zolkapli and J. F. Benitez and A. Castaneda Hernandez and J.A. Murillo Quijada and Heriberto Castilla-Valdez and E. De La Cruz-Burelo and M. C. Duran-Osuna and I. Heredia-De La Cruz and Ricardo L{\'o}pez-Fern{\'a}ndez and J. Mejia Guisao and Ra{\'u}l Iraq Rabad{\'a}n-Trejo and M. Ramirez-Garcia and Gabriel Ramirez-Sanchez and Rogelio Reyes-Almanza and A. Sanchez-Hernandez and S. Carrillo Moreno and C. Oropeza Barrera and F. Vazquez Valencia and Jan Eysermans and Isabel Pedraza and Humberto Salazar Ibarguen and Cecilia Uribe Estrada and A. Morelos Pineda and D. Krofcheck and Srinidhi Bheesette and P. H. Butler and A. Ahmad and Muhammad Irfan Asghar and Qamar Ul Hassan and Hafeez R. Hoorani and Asif Saddique and M.A. Shah and Muhammad Shoaib and Muhammad Mohsin Waqas and Helena Białkowska and Michal Bluj and Bożena Boimska and Tomasz Frueboes and Maciej G{\'o}rski and Małgorzata Kazana and Krzysztof Nawrocki and Michał Szleper and Piotr Traczyk and Piotr. Zalewski and Karol Buńkowski and Adrian P. Byszuk and Krzysztof Doroba and A. Kalinowski and M. Konecki and Jan Kr{\'o}likowski and Maciej M. Misiura and Michal Olszewski and Andrzej Pyskir and Marek Walczak and M. Araujo and P. Bargassa and C. Beir{\~a}o Da Cruz E. Silva and A. Di Francesco and Pietro Faccioli and Bruno Galinhas and M. Gallinaro and J. J. Hollar and N. Leonardo and Mythra Varun Nemallapudi and Jo{\~a}o Seixas and Giles Strong and O. Toldaiev and Daniele Vadruccio and Jo{\~a}o Varela and Serguei Afanasiev and Pavel Bunin and Mikhail Gavrilenko and I. A. Golutvin and Ilya N. Gorbunov and Alexey Kamenev and Vladimir Karjavine and Alexander Lanev and Alexander I. Malakhov and Victor Matveev and P. V. Moisenz and Vladimir Palichik and Victor Perelygin and Sergey Shmatov and Siarhei Shulha and Nikolai Skatchkov and V. Smirnov and Nikolay Voytishin and Anatoli Zarubin and Victor Golovtsov and Yu. B. Ivanov and Victor Kim and Ekaterina Kuznetsova and P. Levchenko and Victor Murzin and Vadim Oreshkin and Igor Smirnov and Dmitry E. Sosnov and Valentin Sulimov and L. N. Uvarov and Sergey A. Vavilov and An. Vorobyev and Yu. Andreev and Alexander Dermenev and S. Gninenko and Nikolai Golubev and Anton Karneyeu and Mikhail Kirsanov and N. V. Krasnikov and Anatoli Pashenkov and Danila Tlisov and Alexander Toropin and Vladimir Epshteyn and Vladimir Gavrilov and Natalia Lychkovskaya and V. Popov and Ivan Pozdnyakov and Grigory Safronov and Alexander A. Spiridonov and Anton Stepennov and Viatcheslav Stolin and Maria Toms and E. Vlasov and A. Zhokin and T. A.-Kh. Aushev and M. Chadeeva and Pavel Parygin and D. Philippov and S. Polikarpov and Elena Popova and Vladimir Rusinov and Vladimir Andreev and Maksim Azarkin and I. M. Dremin and Martin Kirakosyan and Sergey V. Rusakov and A. R. Terkulov and Alexey Baskakov and A. Belyaev and E. Boos and Alexander Ershov and Andrey Gribushin and L. A. Khein and Vyacheslav I. Klyukhin and O. L. Kodolova and I. P. Lokhtin and Olga Lukina and Igor Miagkov and Stepan Obraztsov and Sergey Petrushanko and Viktor Savrin and A. M. Snigirev and Alexander Barnyakov and Vladimir Blinov and Tatyana Dimova and L. V. Kardapoltsev and Y. Skovpen and I. Azhgirey and I. S. Bayshev and S. Bitioukov and Dmitry Elumakhov and Anton Godizov and Vassili Kachanov and Alexey Kalinin and Dmitri Konstantinov and P. Mandrik and Vladimir Petrov and Roman Ryutin and S. Slabospitskii and Andrei Sobol and Sergey Troshin and Nikolay Tyurin and Andrey Uzunian and Alexey Volkov and Anton Babaev and Sergei Baidali and Vitalii Okhotnikov and Petar Adzi{\'c} and P. Cirkovic and Damir Devetak and Milos Dordevic and Jovana Milosevic and J. Alcaraz Maestre and A. {\~A}lvarez Fern{\'a}ndez and Irene Bachiller and M. Barrio Luna and J.A. Brochero Cifuentes and Marcos Cerrada and Nicolas Produit and B. de la Cruz and A. Delgado Peris and C Fernandez Bedoya and J.P. Fern{\'a}ndez Ramos and Josep Flix and M. C. Fouz and O. Gonzalez Lopez and S. Goy Lopez and J.M. Hernandez and M. I. Josa and Dermot Moran and A. P{\'e}rez-Calero Yzquierdo and J. Puerta Pelayo and I. Redondo and L. Romero and M.S. Soares and Andrea Triossi and Carmen Albajar and J. F. de Troc{\'o}niz and J. Cuevas and Carlos Erice and J. Fernandez Menendez and S. Folgueras and I. Gonzalez Caballero and Juan Rodrigo Gonzalez fernandez and E. Palencia Cortezon and V. Rodr{\'i}guez Bouza and S. Sanchez Cruz and Pietro Vischia and J.M. Vizan Garcia and I. Cabrillo and Alicia Calderon and B. Chazin Quero and J. Duarte Campderros and M. Fernandez and P.J. Fern{\'a}ndez Manteca and A. 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Rathjens and Alex Safonov and Nural Akchurin and Jordan Damgov and F. De Guio and Phillip Russell Dudero and Shuichi Kunori and Kamal Lamichhane and Tielige Mengke and Samila Muthumuni and T. Peltola and Sonaina Undleeb and Igor Volobouev and Senta Victoria Greene and Alfredo Gurrola and Ravi Janjam and Willard Johns and Charles Maguire and A. Melo and Hong Ni and Klaas Ole Padeken and J.D. Ruiz Alvarez and Paul Sheldon and Shengquan Tuo and Julia Velkovska and M. Verweij and Q. Xu and Michael Wayne Arenton and P. Barria and Bradley Cox and R. Hirosky and Matthew Joyce and Alexander Ledovskoy and H. Li and C. Neu and Tutanon Sinthuprasith and Evan Wolfe and Fan Xia and R. Harr and Paul Edmund Karchin and N. Poudyal and J. Sturdy and Prakash Thapa and Shawn Zaleski and Michael Brodski and James Buchanan and C'ecile Caillol and Duncan Carlsmith and Sridhara Dasu and L. Dodd and Bhawna Gomber and Monika Grothe and M. Herndon and Alain Herv{\'e} and Usama Hussain and P. Klabbers and Armando Lanaro and Kenneth Richard Long and Richard Loveless and Tyler H. Ruggles and Alexander A. Savin and N. Smith and W.H. Smith and N. Woods},
  journal={Physics Letters B},
  year={2019}
}
Abstract Evidence for the light-by-light scattering process, γ γ → γ γ , in ultraperipheral PbPb collisions at a centre-of-mass energy per nucleon pair of 5.02 TeV is reported. The analysis is conducted using a data sample corresponding to an integrated luminosity of 390 μ b − 1 recorded by the CMS experiment at the LHC. Light-by-light scattering processes are selected in events with two photons exclusively produced, each with transverse energy E T γ > 2 GeV , pseudorapidity | η γ | 2.4… Expand

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Measurement of exclusive γγ→ℓ+ℓ−γγ→ℓ+ℓ− production in proton–proton collisions at View the MathML sources=7 TeV with the ATLAS detector
This Letter reports a measurement of the exclusive γγ→l+l−γγ→l+l− (l=e, μl=e, μ) cross-section in proton–proton collisions at a centre-of-mass energy of 7 TeV7 TeV by the ATLAS experiment at the LHC,Expand
Exclusive J/ψ photoproduction off protons in ultraperipheral p-Pb collisions at √(s(NN))=5.02 TeV.
TLDR
The first measurement at the LHC of exclusive J/ψ photoproduction off protons, in ultraperipheral proton-lead collisions at sqrt[s_{NN}]=5.02  TeV is presented, indicating no significant change in the gluon density behavior of the proton between HERA and LHC energies. Expand
Study of exclusive two-photon production of W(+)W(-) in pp collisions at sqrt(s) = 7 TeV and constraints on anomalous quartic gauge couplings
A search for exclusive or quasi-exclusive W+W− production by photon-photon interactions, pp → p(∗)W+W−p(∗), at √ s = 7 TeV is reported using data collected by the CMS detector with an integratedExpand
Study of exclusive two-photon production of W+W− in pp collisions at $ \sqrt{s}=7 $ TeV and constraints on anomalous quartic gauge couplings
A bstractA search for exclusive or quasi-exclusive W+W− production by photon-photon interactions, pp → p(*)W+W−p(*), at $ \sqrt{s}=7 $ TeV is reported using data collected by the CMS detector with anExpand
Observation of proton-tagged, central (semi)exclusive production of high-mass lepton pairs in pp collisions at 13 TeV with the CMS-TOTEM precision proton spectrometer
A bstractThe process pp → pℓ+ℓ−p(*), with ℓ+ℓ− a muon or an electron pair produced at midrapidity with mass larger than 110 GeV, has been observed for the first time at the LHC in pp collisions atExpand
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