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

  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. Kousouris and Ioannis Papakrivopoulos and Georgios Tsipolitis and Ioannis Evangelou and Costas Foudas and Paraskevas Gianneios and Panagiotis Katsoulis and Panagiotis Kokkas and Stavros Mallios and Nikolaos Manthos and I. Papadopoulos and Evangelos Paradas and J. Strologas and Frixos Triantis and D Tsitsonis and M{\'a}rton Bart{\'o}k and M. Csanad and Nicolas Filipovic and Péter Major and Marton Imre Nagy and G. Pasztor and Oliv{\'e}r Sur{\'a}nyi and G. I. Veres and Gyorgy Bencze and Csaba Hajdu and David P. Horvath and {\'A}d{\'a}m Hunyadi and F. Sikler and T. {\'A}. V{\'a}mi and Viktor Veszpr{\'e}mi and Gyorgy Vesztergombi and Noemi Beni and S{\'a}ndor Czell{\'a}r and J{\'a}nos Karancsi and A Makovec and J{\'o}zsef Moln{\'a}r and Zoltan Szillasi and P{\'e}ter Raics and Z. L. Trocsanyi and Bal{\'a}zs Ujv{\'a}ri and S. Choudhury and J. R. Komaragiri and Praveen Chandra Tiwari and Seema Bahinipati and Chandiprasad Kar and Prolay Kumar Mal and Koushik Kanti Mandal and Ajaya K. 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. Kumar and Pawan Kumar Netrakanti and Lalit M. Pant and P. Shukla and Tariq Aziz and Muzamil Ahmad Bhat and Shashikant R. Dugad and G. B. Mohanty and Nairit Sur and Bajrang Sutar and Ravindra Kumar Verma and S. Banerjee and S. Chatterjee and P. Das and Monoranjan Guchait and Sa. Jain and Saikat Karmakar and S. Kumar and Manas Maity and Gobinda Majumder and Kajari Mazumdar and Niladribihari Sahoo and T. Sarkar and S. Dube and Vinay I. Hegde and A. Kapoor and K. Kothekar and S. Pandey and Aditee Rane and Shirin Chenarani and E Eskandari Tadavani and Seyed Mohsen Etesami and Mohsen Khakzad and Mojtaba Mohammadi Najafabadi and M. Naseri and F. Rezaei Hosseinabadi and Batool Safarzadeh and Maryam Zeinali and M. Felcini and M. Grunewald and M. Abbrescia and C. Calabria and A. Colaleo and D. Creanza and L. Cristella and N. De Filippis and M. De Palma and A. Di Florio and Filippo Errico and L. Fiore and Andrea Gelmi and G. Iaselli and M. Ince and S. Lezki and Giorgio Pietro Maggi and Marcello Maggi and G. Miniello and S. My and S. Nuzzo and A. Pompili and G. Pugliese and Raffaella Radogna and Antonio Ranieri and G. Selvaggi and A. Sharma and L. Silvestris and Rosamaria Venditti and P. Verwilligen and Giuseppe A. Zito and G. Abbiendi and C. Battilana and Daniele Bonacorsi and Lisa Borgonovi and S. Braibant-Giacomelli and Renato Campanini and P. Capiluppi and A. Castro and Francesca Romana Cavallo and S. S. Chhibra and C. Ciocca and Giuseppe Codispoti and M. Cuffiani and G. M. Dallavalle and F. Fabbri and Alessandra Fanfani and Elisa Fontanesi and P. Giacomelli and Claudio Grandi and Luigi Guiducci and Sergio Lo Meo and S. Marcellini and G. Masetti and A. Montanari and F. L. Navarria and Andr{\'e} V. Perrotta and F. Primavera and A.M. Rossi and T. Rovelli and G. P. Siroli and N. Tosi and S. Albergo and A. Di Mattia and Renato Potenza and Alessia Tricomi and Cristina Tuv{\`e} and Giuseppe Barbagli and K. Chatterjee and V. Ciulli and C. Civinini and Raffaello D'Alessandro and E. Focardi and G. Latino and P. Lenzi and M. Meschini and Simone Paoletti and L. Russo and G. Sguazzoni and D Strom and L. Viliani and Luigi Benussi and Stefano Bianco and Davide Piccolo and F. Ferro and F. Ravera and E. Robutti and Silvano Tosi and A. Benaglia and Andrea Beschi and Luca Brianza and Francesco Brivio and Vincenzo Ciriolo and Salvatore Di Guida and M. E. Dinardo and S. Fiorendi and S. Gennai and A. Ghezzi and P. Govoni and Martina Malberti and S. Malvezzi and A. Massironi and Dario Menasce and Fabio Monti and L. Moroni and Marco Paganoni and D. Pedrini and Stefano Ragazzi and T. Tabarelli de Fatis and D. Zuolo and S. Buontempo and N. Cavallo and A. Di Crescenzo and F. Fabozzi and Francesco Fienga and Giuliana Galati and A. O. M. Iorio and W.A. Khan and Luca Lista and S. Meola and Pier Stanislao Paolucci and C. Sciacca and Elena Voevodina and P. Azzi and N. Bacchetta and D. Bisello and A. Boletti and Alberto Bragagnolo and R. Carlin and P. Checchia and M Dall'Osso and P. De Castro Manzano and Tommaso Dorigo and U. Dosselli and Fabrizio Gasparini and U. Gasparini and A. Gozzelino and S. Y. Hoh and Stefano Lacaprara and P. Lujan and M. Margoni and A. T. Meneguzzo and Jacopo Pazzini and P. Ronchese and Roberto Rossin and F. Simonetto and A. Tiko and Ezio Torassa and Marco Zanetti and P. Zotto and G. Zumerle and A. Braghieri and A Magnani and Paolo Montagna and Sergio P. Ratti and Valerio Re and Martina Ressegotti and C. Riccardi and P. Salvini and I. Vai and P. Vitulo and Maurizio Biasini and Gian Mario Bilei and Claudia Cecchi and Diego Ciangottini and L. Fan{\`o} and Paolo Lariccia and Roberto Leonardi and Elisabetta Manoni and Giancarlo Mantovani and Valentina Mariani and Mauro Menichelli and A. Rossi and A. Santocchia and Daniele Spiga and K. Androsov and Paolo Azzurri and Giuseppe Bagliesi and L. Bianchini and Tommaso Boccali and L Borrello and R. Castaldi and M. A. Ciocci and R. Dell’Orso and Giacomo Fedi and Francesco Fiori and Leonardo Maria Giannini and A. Giassi and M. T. Grippo and F. Ligabue and Elisabetta Manca and Giulio Mandorli and A. Messineo and Fabrizio Palla and Andrea Rizzi and Paolo Spagnolo and Roberto Tenchini and G. Tonelli and Andrea Venturi and P. G. Verdini and Luciano M. Barone and Francesca Cavallari and M. Cipriani and D. Del Re and E. Di Marco and Marcella Diemoz and S Gelli and E. Longo and B. Marzocchi and P. Meridiani and Giovanni Organtini and Francesco Pandolfi and Riccardo Paramatti and F Preiato and S. Rahatlou and C. Rovelli and Francesco Santanastasio and N. Amapane and R. Arcidiacono and S. Argir{\`o} and M. Arneodo and N. Bartosik and R. Bellan and C. Biino and N. Cartiglia and Francesca Cenna and Simona Cometti and M. Costa and R. Covarelli and Natale Demaria and Bilal Kiani and C. Mariotti and S. Maselli and E. Migliore and Vincenzo Monaco and E. Monteil and M. Monteno and M. M. Obertino and L. 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. 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Bodek and P. de Barbaro and Regina Demina and Yi-ting Duh and Joseph Lynn Dulemba and Colin Fallon and Thomas Ferbel and Mario Galanti and Ar{\'a}n Garc{\'i}a-Bellido and J Han and Otto Heinz Hindrichs and Aleko Khukhunaishvili and P. Tan and Rhys Taus and R Ciesielski and Antonis Agapitos and J. P. Chou and Yuri Gershtein and Eva Halkiadakis and M. Heindl and Elliot Hughes and Steven Kaplan and Raghav Kunnawalkam Elayavalli and Savvas Kyriacou and A. Lath and Roy Montalvo and Kevin Nash and Marc Osherson and H. Saka and S. Salur and Steve Schnetzer and David Sheffield and S. Somalwar and R. Stone and S. Thomas and Peter Thomassen and M. Walker and A. G. Delannoy and Joseph Heideman and Grant Riley and Stefan Spanier and Othmane Bouhali and Ali Celik and M. Dalchenko and M De Mattia and A. Delgado and Sven Dildick and Ricardo Eusebi and Jason Gilmore and T. Huang and Teruki Kamon and S. Luo and R. Mueller and A. Perloff and L. Perni{\`e} and D. 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},
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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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.
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