Open Access

Observation of the Rare Decay $η \to μ^{+} μ^{-} e^{+} e^{-}$

A. Hayrapetyan¹, V. Makarenko ¹, A. Tumasyan ^1,a, W. Adam ², L. Benato ², T. Bergauer ², M. Dragicevic ², P. S. Hussain ², M. Jeitler ^2,b et al. (CMS Collaboration)

M. Jeitler ^2,b, N. Krammer ², A. Li ², D. Liko ², M. Matthewman², J. Schieck ^2,b, R. Schöfbeck ^2,b, M. Shooshtari ², M. Sonawane ², W. Waltenberger ², C. E. Wulz ^2,b, T. Janssen ³, H. Kwon ³, D. Ocampo Henao ³, T. Van Laer ³, P. Van Mechelen ³, J. Bierkens ⁴, N. Breugelmans⁴, J. D’Hondt ⁴, S. Dansana ⁴, A. De Moor ⁴, M. Delcourt ⁴, F. Heyen⁴, Y. Hong ⁴, P. Kashko ⁴, S. Lowette ⁴, I. Makarenko ⁴, S. Tavernier ⁴, M. Tytgat ^4,c, G. P. Van Onsem ⁴, S. Van Putte ⁴, D. Vannerom ⁴, B. Bilin ⁵, B. Clerbaux ⁵, A. K. Das⁵, I. De Bruyn ⁵, G. De Lentdecker ⁵, H. Evard ⁵, L. Favart ⁵, P. Gianneios ⁵, A. Khalilzadeh⁵, A. Malara ⁵, M. A. Shahzad⁵, A. Sharma ⁵, L. Thomas ⁵, M. Vanden Bemden ⁵, C. Vander Velde ⁵, P. Vanlaer ⁵, F. Zhang ⁵, M. De Coen ⁶, D. Dobur ⁶, C. Giordano ⁶, G. Gokbulut ⁶, K. Kaspar ⁶, D. Kavtaradze⁶, D. Marckx ⁶, K. Skovpen ⁶, A. M. Tomaru⁶, N. Van Den Bossche ⁶, J. van der Linden ⁶, J. Vandenbroeck ⁶, H. Aarup Petersen⁷, S. Bein ⁷, A. Benecke ⁷, A. Bethani ⁷, G. Bruno ⁷, A. Cappati ⁷, J. De Favereau De Jeneret ⁷, C. Delaere ⁷, F. Gameiro Casalinho⁷, A. Giammanco ⁷, A. O. Guzel ⁷, V. Lemaitre⁷, J. Lidrych ⁷, P. Malek ⁷, S. Turkcapar ⁷, G. Alves ⁸, M. Barroso Ferreira Filho ⁸, E. Coelho ⁸, C. Hensel ⁸, D. Matos Figueiredo⁸, T. Menezes De Oliveira ⁸, C. Mora Herrera ⁸, P. Rebello Teles ⁸, M. Soeiro ⁸, E. J. Tonelli Manganote ^8,d, A. Vilela Pereira ⁸, W. L. Aldá Júnior ⁹, H. Brandao Malbouisson ⁹, W. Carvalho ⁹, J. Chinellato ^9,e, M. Costa Reis ⁹, E. M. Da Costa ⁹, G. G. Da Silveira ^9,f, D. De Jesus Damiao ⁹, S. Fonseca De Souza ⁹, R. Gomes De Souza ⁹, S. Jesus ⁹, T. Laux Kuhn ^9,f, K. Mota Amarilo ⁹, L. Mundim ⁹, H. Nogima ⁹, J. P. Pinheiro ⁹, A. Santoro ⁹, A. Sznajder ⁹, M. Thiel ⁹, F. Torres Da Silva De Araujo ^9,g, C. A. Bernardes ¹⁰, L. Calligaris ¹⁰, F. Damas ¹⁰, E. De Moraes Gregores ¹⁰, B. Lopes Da Costa ¹⁰, I. Maietto Silverio ¹⁰, P. G. Mercadante ¹⁰, S. F. Novaes ¹⁰, S. Padula ¹⁰, V. Scheurer¹⁰, T. Tomei ¹⁰, A. Aleksandrov ¹¹, G. Antchev ¹¹, P. Danev¹¹, R. Hadjiiska ¹¹, P. Iaydjiev ¹¹, M. Shopova ¹¹, G. Sultanov ¹¹, A. Dimitrov ¹², L. Litov ¹², B. Pavlov ¹², P. Petkov ¹², A. Petrov ¹², D. Abbaneo ¹³, C. Amendola ¹³, R. Ardino ¹³, E. Auffray ¹³, J. Baechler¹³, D. Barney ¹³, J. Bendavid ¹³, I. Bestintzanos¹³, M. Bianco ¹³, A. Bocci ¹³, L. Borgonovi ¹³, C. Botta ¹³, A. Bragagnolo ¹³, C. E. Brown ¹³, C. Caillol ¹³, G. Cerminara ¹³, P. Connor ¹³, K. Cormier ¹³, D. D’Enterria ¹³, A. Dabrowski ¹³, P. Das ¹³, A. David Tinoco Mendes ¹³, A. De Roeck ¹³, M. M. Defranchis ¹³, M. Deile ¹³, M. Dobson ¹³, P. J. Fernández Manteca¹³, B.A. Fontana Santos Alves¹³, E. Fontanesi ¹³, W. Funk ¹³, A. Gaddi¹³, S. Giani¹³, D. Gigi¹³, K. Gill ¹³, F. Glege ¹³, M. Glowacki¹³, A. Gruber ¹³, J. Hegeman ¹³, J. K. Heikkilä ¹³, R. Hofsaess ¹³, B. Huber ¹³, T. James ¹³, P. Janot ¹³, O. Kaluzinska ¹³, O. Karacheban ^13,h, G. Karathanasis ¹³, S. Laurila ¹³, P. Lecoq ¹³, E. Leutgeb ¹³, C. Lourenco ¹³, A. m. Lyon ¹³, M. Magherini ¹³, L. Malgeri ¹³, M. Mannelli ¹³, A. Mehta ¹³, F. Meijers ¹³, J. A. Merlin¹³, S. Mersi ¹³, E. Meschi ¹³, M. Migliorini ¹³, F. Monti ¹³, F. Moortgat ¹³, M. Mulders ¹³, M. Musich ¹³, I. Neutelings ¹³, S. Orfanelli¹³, F. Pantaleo ¹³, M. Pari ¹³, G. Petrucciani ¹³, A. Pfeiffer ¹³, M. Pierini ¹³, M. Pitt ¹³, H. Qu ¹³, D. Rabady ¹³, A. Reimers ¹³, B. Ribeiro Lopes ¹³, F. Riti ¹³, P. Rosado ¹³, M. Rovere ¹³, H. Sakulin ¹³, R. Salvatico ¹³, S. Sanchez Cruz ¹³, S. Scarfi ¹³, M. Selvaggi ¹³, K. Shchelina ¹³, P. Silva ¹³, P. Sphicas ^13,i, A. G. Stahl Leiton ¹³, A. Steen ¹³, S. Summers ¹³, D. Treille ¹³, P. Tropea ¹³, E. Vernazza ¹³, J. Wanczyk ^13,j, S. Wuchterl ¹³, M. Zarucki ¹³, P. Zehetner ¹³, P. Zejdl ¹³, G. Zevi Della Porta ¹³, S. Keshri ¹⁴, D. N. Laroze Navarrete ¹⁴, M. Meena ¹⁴, S. Thakur ¹⁴, W. Brooks ¹⁵, T. Cheng ¹⁶, T. Javaid ¹⁶, L. Wang ¹⁶, L. Yuan ¹⁶, Z. Hu ¹⁷, Z. Liang¹⁷, J. Liu¹⁷, X. Wang ¹⁷, H. Yang¹⁷, G. M. Chen ^18,k, H. S. Chen ^18,k, M. Chen ^18,k, Y. Chen ¹⁸, Q. Hou ¹⁸, X. Hou¹⁸, F. Iemmi ¹⁸, C. 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Christoforou ³¹, S. Konstantinou ³¹, C. Leonidou ³¹, L. Paizanos ³¹, F. Ptochos ³¹, P. A. Razis ³¹, H. Rykaczewski³¹, H. Saka ³¹, A. Stepennov ³¹, M. Finger ³², M. Finger, Jr.³², E. Carrera Jarrin ³³, A. A. Abdelalim ^34,s,t, B. El-mahdy ^34,u, A. Hussein ³⁵, H. Mohammed ³⁵, K. Jaffel ³⁶, M. Kadastik³⁶, T. Lange ³⁶, C. Nielsen ³⁶, J. Pata ³⁶, M. Raidal ³⁶, N. Seeba ³⁶, L. Tani ³⁶, E. Brücken ³⁷, A. Milieva ³⁷, K. Osterberg ³⁷, M. Voutilainen ³⁷, F. I. Garcia Fuentes ³⁸, P. Inkaew ³⁸, K. T. S. Kallonen ³⁸, R. Kumar Verma³⁸, T. Lampén ³⁸, K. Lassila-Perini ³⁸, B. Lehtela ³⁸, S. Lehti ³⁸, T. Lindén ³⁸, N. R. Mancilla Xinto ³⁸, M. Myllymäki ³⁸, M. m. Rantanen ³⁸, S. Saariokari ³⁸, N. T. Toikka ³⁸, J. Tuominiemi ³⁸, N. Bin Norjoharuddeen³⁹, H. Kirschenmann ³⁹, P. R. Luukka ³⁹, H. Petrow ³⁹, M. Besancon ⁴⁰, F. Couderc ⁴⁰, M. Dejardin ⁴⁰, D. Denegri⁴⁰, P. Devouge⁴⁰, J. L. Faure ⁴⁰, F. Ferri ⁴⁰, P. Gaigne⁴⁰, S. Ganjour ⁴⁰, P. Gras ⁴⁰, F. Guilloux ⁴⁰, G. Hamel de Monchenault ⁴⁰, M. 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Márton⁵⁶, A. J. Rádl ^56,ff, F. Sikler ⁵⁶, V. Veszpremi ⁵⁶, M. Csanad ⁵⁷, K. Farkas ⁵⁷, A. Fehérkuti ^57,gg, M. M. A. Gadallah ^57,hh, M. León Coello⁵⁷, G. Pasztor ⁵⁷, G. I. Veres ⁵⁷, B. Ujvari ⁵⁸, G. Zilizi ⁵⁸, G. Bencze⁵⁹, S. Czellar⁵⁹, J. Molnar⁵⁹, Z. Szillasi⁵⁹, T. F. Csorgo ^60,gg, F. Nemes ^60,gg, T. Novak ⁶⁰, I. Szanyi ^60,ii, S. Bahinipati ⁶¹, S. Nayak ⁶¹, R. Raturi⁶¹, S. Bansal ⁶², S. B. Beri⁶², V. Bhatnagar ⁶², S. Chauhan ⁶², N. Dhingra ^62,jj, A. Kaur ⁶², H. Kaur ⁶², M. Kaur ⁶², S. Kumar ⁶², T. Sheokand⁶², J. Singh ⁶², A. Singla ⁶², A. Bhardwaj ⁶³, A. Chhetri ⁶³, B. C. Choudhary ⁶³, A. Kumar ⁶³, A. Kumar ⁶³, M. Naimuddin ⁶³, S. Phor ⁶³, K. Ranjan ⁶³, M. K. Saini ⁶³, P. Palni ⁶⁴, S. Acharya ^65,kk, B. Gomber ⁶⁵, S. Mukherjee ⁶⁶, S. Bhattacharya ⁶⁷, S. Das Gupta⁶⁷, S. Dutta ⁶⁷, S. Dutta⁶⁷, S. Sarkar⁶⁷, M. M. Ameen ⁶⁸, P. K. Behera ⁶⁸, S. Chatterjee ⁶⁸, G. Dash ⁶⁸, A. Dattamunsi⁶⁸, P. Jana ⁶⁸, P. Kalbhor ⁶⁸, S. Kamble ⁶⁸, J. R. Komaragiri ^68,ll, T. Mishra ⁶⁸, P. R. Pujahari ⁶⁸, A. K. Sikdar ⁶⁸, R. K. Singh ⁶⁸, P. Verma ⁶⁸, S. Verma ⁶⁸, A. Vijay ⁶⁸, B. K. Sirasva⁶⁹, L. Bhatt⁷⁰, S. Dugad ⁷⁰, G. B. Mohanty ⁷⁰, M. Shelake ⁷⁰, P. Suryadevara⁷⁰, A. Bala ⁷¹, S. Banerjee ⁷¹, S. Barman ^71,mm, R. M. Chatterjee⁷¹, M. Guchait ⁷¹, S. Jain ⁷¹, A. Jaiswal⁷¹, S. Kumar ⁷¹, M. Maity^71,mm, G. Majumder ⁷¹, K. Mazumdar ⁷¹, S. Parolia ⁷¹, R. Saxena ⁷¹, A. Thachayath ⁷¹, D. Maity ^72,nn, P. Mal ⁷², K. Naskar ^72,nn, A. Nayak ^72,nn, K. Pal ⁷², P. Sadangi⁷², S. K. Swain ⁷², S. Varghese ^72,nn, D. Vats ^72,nn, S. Dube ⁷³, P. Hazarika ⁷³, B. Kansal ⁷³, A. Laha ⁷³, R. Sharma ⁷³, S. Sharma ⁷³, K. Y. Vaish ⁷³, S. Ghosh ⁷⁴, H. Bakhshiansohi ^75,oo, A. Jafari ^75,pp, V. Sedighzadeh Dalavi ⁷⁵, M. Zeinali ^75,qq, S. Bashiri ⁷⁶, S. Chenarani ^76,rr, S. M. Etesami ⁷⁶, Y. Hosseini ⁷⁶, M. Khakzad ⁷⁶, E. Khazaie ⁷⁶, M. Mohammadi Najafabadi ⁷⁶, S. Tizchang ^76,ss, M. Felcini ⁷⁷, M. Grunewald ⁷⁷, M. Abbrescia ^78a,78b, M. Barbieri^78a,78b, M. Buonsante ^78a,78b, A. Colaleo ^78a,78b, D. Creanza ^78a,78c, N. De Filippis ^78a,78c, M. De Palma ^78a,78b, W. Elmetenawee ^78a,78b,s, N. Ferrara ^78a,78c, L. Fiore ^78a, L. Generoso^78a,78b, L. Longo ^78a, M. Louka ^78a,78b, G. Maggi ^78a,78c, M. Maggi ^78a, I. Margjeka ^78a, V. Mastrapasqua ^78a,78b, S. My ^78a,78b, F. Nenna ^78a,78b, S. Nuzzo ^78a,78b, A. Pellecchia ^78a,78b, A. Pompili ^78a,78b, G. Pugliese ^78a,78c, R. Radogna ^78a,78b, D. Ramos ^78a, A. Ranieri ^78a, L. Silvestris ^78a, F. M. Simone ^78a,78c, A. Stamerra ^78a,78b, Ü. Sözbilir^78a, D. Troiano ^78a,78b, R. Venditti ^78a,78b, P. Verwilligen ^78a, A. Zaza ^78a,78b, G. Abbiendi ^79a, C. Battilana ^79a,79b, D. Bonacorsi ^79a,79b, P. Capiluppi ^79a,79b, F. R. Cavallo ^79a, M. Cuffiani ^79a,79b, G. M. Dallavalle ^79a, T. Diotalevi ^79a,79b, F. Fabbri ^79a, A. Fanfani ^79a,79b, R. Farinelli ^79a, P. Giacomelli ^79a, C. Grandi ^79a, L. Guiducci ^79a,79b, S. Lo Meo ^79a,tt, M. Lorusso ^79a,79b, L. Lunerti ^79a, S. Marcellini ^79a, F. Navarria ^79a,79b, G. Paggi ^79a,79b, A. Perrotta ^79a, A. Rossi ^79a,79b, S. Rossi Tisbeni ^79a,79b, T. Rovelli ^79a,79b, G. P. Siroli ^79a,79b, S. Costa ^80a,80b,uu, A. Di Mattia ^80a, A. Lapertosa ^80a, R. Potenza^80a,80b, A. Tricomi ^80a,80b,uu, J. Altork ^81a,81b, P. Assiouras ^81a, G. Barbagli ^81a, G. Bardelli ^81a, M. Bartolini ^81a,81b, A. Calandri ^81a,81b, B. Camaiani ^81a,81b, A. Cassese ^81a, R. Ceccarelli ^81a, V. Ciulli ^81a,81b, C. Civinini ^81a, R. D’Alessandro ^81a,81b, L. Damenti^81a,81b, E. Focardi ^81a,81b, T. Kello ^81a, G. Latino ^81a,81b, P. Lenzi ^81a,81b, M. Lizzo ^81a, M. Meschini ^81a, S. Paoletti ^81a, A. Papanastassiou^81a,81b, G. Sguazzoni ^81a, L. Viliani ^81a, L. Benussi ⁸², S. Colafranceschi ^82,vv, S. Meola ^82,ww, D. Piccolo ⁸², M. Alves Gallo Pereira ^83a, F. Ferro ^83a, E. Robutti ^83a, S. Tosi ^83a,83b, A. Benaglia ^84a, F. Brivio ^84a, V. Camagni ^84a,84b, F. Cetorelli ^84a,84b, F. De Guio ^84a,84b, M. E. Dinardo ^84a,84b, P. Dini ^84a, S. Gennai ^84a, R. Gerosa ^84a,84b, A. Ghezzi ^84a,84b, P. Govoni ^84a,84b, L. Guzzi ^84a, M. R. Kim ^84a, G. Lavizzari^84a,84b, M. T. Lucchini ^84a,84b, M. Malberti ^84a, S. Malvezzi ^84a, A. Massironi ^84a, D. Menasce ^84a, L. Moroni ^84a, M. Paganoni ^84a,84b, S. Palluotto ^84a,84b, D. Pedrini ^84a, A. Perego ^84a,84b, G. Pizzati ^84a,84b, T. Tabarelli de Fatis ^84a,84b, S. Buontempo ^85a, F. Confortini ^85a,85b, C. Di Fraia ^85a,85b, F. Fabozzi ^85a,85c, L. Favilla ^85a,85d, A. O. M. Iorio ^85a,85b, L. Lista ^85a,85b,xx, P. Paolucci ^85a,cc, B. Rossi ^85a, P. Azzi ^86a, N. Bacchetta ^86a,yy, M. Biasotto ^86a,zz, D. Bisello ^86a,86b, L. Borella^86a, P. Bortignon ^86a,86c, G. Bortolato ^86a,86b, A. C. M. Bulla ^86a,86c, P. Checchia ^86a, T. Dorigo ^86a,aaa, F. Gasparini ^86a,86b, U. Gasparini ^86a,86b, S. Giorgetti ^86a, E. Lusiani ^86a, M. Margoni ^86a,86b, J. Pazzini ^86a,86b, F. Primavera ^86a,86b, P. Ronchese ^86a,86b, R. Rossin ^86a,86b, F. Simonetto ^86a,86b, M. Tosi ^86a,86b, A. Triossi ^86a,86b, S. Ventura ^86a, M. Zanetti ^86a,86b, P. Zotto ^86a,86b, A. Zucchetta ^86a,86b, G. Zumerle ^86a,86b, A. Braghieri ^87a, M. Brunoldi ^87a,87b, S. Calzaferri ^87a,87b, P. Montagna ^87a,87b, M. Pelliccioni ^87a,87b, V. Re ^87a, C. Riccardi ^87a,87b, P. Salvini ^87a, I. Vai ^87a,87b, P. Vitulo ^87a,87b, S. Ajmal ^88a,88b, M. E. Ascioti^88a,88b, G. M. Bilei ^88a, C. Carrivale^88a,88b, D. Ciangottini ^88a,88b, L. Della Penna^88a,88b, L. Fanò ^88a,88b, V. Mariani ^88a,88b, M. Menichelli ^88a, F. Moscatelli ^88a,bbb, A. Rossi ^88a,88b, A. Santocchia ^88a,88b, D. Spiga ^88a, T. Tedeschi ^88a,88b, C. Aimè ^89a,89b, C. A. Alexe ^89a,89c, P. Asenov ^89a,89b, P. Azzurri ^89a, G. Bagliesi ^89a, L. Bianchini ^89a,89b, T. Boccali ^89a, E. Bossini ^89a, D. Bruschini ^89a,89c, R. Castaldi ^89a, F. Cattafesta ^89a,89c, M. A. Ciocci ^89a,89d, M. Cipriani ^89a,89b, R. Dell’Orso ^89a, S. Donato ^89a,89b, R. Forti ^89a,89b, A. Giassi ^89a, F. Ligabue ^89a,89c, A. C. Marini ^89a,89b, A. Messineo ^89a,89b, S. Mishra ^89a, V. K. Muraleedharan Nair Bindhu ^89a,89b, S. Nandan ^89a, F. Palla ^89a, M. Riggirello ^89a,89c, A. Rizzi ^89a,89b, G. Rolandi ^89a,89c, S. Roy Chowdhury ^89a,ccc, T. Sarkar ^89a, A. Scribano ^89a, P. Solanki ^89a,89b, P. Spagnolo ^89a, F. Tenchini ^89a,89b, R. Tenchini ^89a, G. Tonelli ^89a,89b, N. Turini ^89a,89d, F. Vaselli ^89a,89c, A. Venturi ^89a, P. G. Verdini ^89a, P. Akrap ^90a,90b, C. Basile ^90a,90b, S. C. Behera ^90a, F. Cavallari ^90a, L. Cunqueiro Mendez ^90a,90b, F. De Riggi ^90a,90b, D. Del Re ^90a,90b, M. Del Vecchio ^90a,90b, E. Di Marco ^90a, M. Diemoz ^90a, F. Errico ^90a, L. Frosina ^90a,90b, R. Gargiulo ^90a,90b, B. Harikrishnan ^90a,90b, F. Lombardi^90a,90b, E. Longo ^90a,90b, L. Martikainen ^90a,90b, G. Organtini ^90a,90b, N. Palmeri ^90a,90b, R. Paramatti ^90a,90b, T. Pauletto ^90a,90b, S. Rahatlou ^90a,90b, C. Rovelli ^90a, F. Santanastasio ^90a,90b, L. Soffi ^90a, V. Vladimirov^90a,90b, N. Amapane ^91a,91b, R. Arcidiacono ^91a,91c, S. Argiro ^91a,91b, M. Arneodo ^91a,91c, N. Bartosik ^91a,91c, R. Bellan ^91a,91b, A. Bellora ^91a,91b, C. Biino ^91a, C. Borca ^91a,91b, N. Cartiglia ^91a, M. Costa ^91a,91b, R. Covarelli ^91a,91b, N. Demaria ^91a, E. Ferrando^91a, L. Finco ^91a, M. Grippo ^91a,91b, B. Kiani ^91a,91b, L. Lanteri ^91a,91b, F. Legger ^91a, F. Luongo ^91a,91b, C. Mariotti ^91a, S. Maselli ^91a, A. Mecca ^91a,91b, L. Menzio^91a,91b, P. Meridiani ^91a, E. Migliore ^91a,91b, M. Monteno ^91a, M. M. Obertino ^91a,91b, G. Ortona ^91a, L. Pacher ^91a,91b, N. Pastrone ^91a, M. Ruspa ^91a,91c, F. Siviero ^91a,91b, V. Sola ^91a,91b, A. Solano ^91a,91b, A. Staiano ^91a, C. Tarricone ^91a,91b, D. Trocino ^91a, G. Umoret ^91a,91b, E. Vlasov ^91b, R. White ^91a,91b, J. Babbar ^92a,92b,ccc, S. Belforte ^92a, V. Candelise ^92a,92b, M. Casarsa ^92a, F. Cossutti ^92a, K. De Leo ^92a, G. Della Ricca ^92a,92b, R. Delli Gatti ^92a,92b, C. Giraldin^92a,92b, S. Dogra ⁹³, J. Hong ⁹³, J. Kim ⁹³, T. Kim ⁹³, D. Lee ⁹³, H. Lee ⁹³, J. Lee ⁹³, S. W. Lee ⁹³, C. S. Moon ⁹³, Y. D. Oh ⁹³, S. Sekmen ⁹³, B. Tae⁹³, Y. C. Yang ⁹³, M. S. Kim ⁹⁴, G. Bak ⁹⁵, P. Gwak ⁹⁵, H. Kim ⁹⁵, D. H. Moon ⁹⁵, J. Seo ⁹⁵, E. Asilar ⁹⁶, F. Carnevali ⁹⁶, J. Choi ^96,ddd, T. J. Kim ⁹⁶, Y. Ryou ⁹⁶, J. Song ⁹⁶, S. Ha ⁹⁷, S. Han⁹⁷, B. S. Hong ⁹⁷, J. Kim ⁹⁷, K. Lee ⁹⁷, K. S. Lee ⁹⁷, S. Lee ⁹⁷, J. Yoo ⁹⁷, J. Goh ⁹⁸, J. Shin ⁹⁸, S. Yang ⁹⁸, Y. Kang ⁹⁹, H. Kim ⁹⁹, Y. Kim ⁹⁹, B. Ko⁹⁹, S. Lee ⁹⁹, J. Almond¹⁰⁰, J. H. Bhyun¹⁰⁰, J. Choi ¹⁰⁰, J. Choi¹⁰⁰, W. Jun ¹⁰⁰, H. Kim ¹⁰⁰, J. Kim¹⁰⁰, T. Kim¹⁰⁰, Y. Kim ¹⁰⁰, Y. W. Kim ¹⁰⁰, S. Ko ¹⁰⁰, H. Lee ¹⁰⁰, J. Lee ¹⁰⁰, J. Lee¹⁰⁰, B. H. Oh ¹⁰⁰, J. Shin ¹⁰⁰, U. Yang¹⁰⁰, I. Yoon ¹⁰⁰, W. Jang ¹⁰¹, D. Kim ¹⁰¹, S. Kim ¹⁰¹, J. S. H. Lee ¹⁰¹, Y. Lee ¹⁰¹, I. Park ¹⁰¹, Y. Roh¹⁰¹, I. J. Watson ¹⁰¹, G. Cho¹⁰², K. Hwang ¹⁰², B. Kim ¹⁰², S. Kim¹⁰², K. Lee¹⁰², H. D. Yoo ¹⁰², Y. Lee ¹⁰³, I. Yu ¹⁰³, T. Beyrouthy ¹⁰⁴, Y. Gharbia ¹⁰⁴, F. Alazemi ¹⁰⁵, K. Dreimanis ¹⁰⁶, O. M. Eberlins ¹⁰⁶, A. Gaile ¹⁰⁶, C. Munoz Diaz ¹⁰⁶, D. Osite ¹⁰⁶, G. Pikurs ¹⁰⁶, R. Plese ¹⁰⁶, A. Potrebko ¹⁰⁶, M. Seidel ¹⁰⁶, D. Sidiropoulos Kontos ¹⁰⁶, N. R. Strautnieks ¹⁰⁷, M. Ambrozas ¹⁰⁸, A. Juodagalvis ¹⁰⁸, S. Nargelas ¹⁰⁸, A. Rinkevicius ¹⁰⁸, G. Tamulaitis ¹⁰⁸, I. Yusuff ^109,eee, Z. Zolkapli¹⁰⁹, J. F. Benitez ¹¹⁰, A. Castaneda Hernandez ¹¹⁰, A. Cota Rodriguez ¹¹⁰, L. E. Cuevas Picos¹¹⁰, H. A. Encinas Acosta¹¹⁰, L. G. Gallegos Maríñez¹¹⁰, J. A. Murillo Quijada ¹¹⁰, L. Valencia Palomo ¹¹⁰, G. Ayala ¹¹¹, H. Castilla-Valdez ¹¹¹, H. Crotte Ledesma ¹¹¹, R. Lopez-Fernandez ¹¹¹, J. Mejia Guisao ¹¹¹, R. Reyes-Almanza ¹¹¹, A. Sánchez Hernández ¹¹¹, C. Oropeza Barrera ¹¹², D. L. Ramirez Guadarrama¹¹², M. Ramírez García ¹¹², I. Bautista ¹¹³, F. E. Neri Huerta ¹¹³, I. Pedraza ¹¹³, H. A. Salazar Ibarguen ¹¹³, C. Uribe Estrada ¹¹³, I. Bubanja ¹¹⁴, J. Mijuskovic ¹¹⁴, N. Raicevic ¹¹⁴, P. H. Butler ¹¹⁵, A. Ahmad ¹¹⁶, M. I. Asghar ¹¹⁶, A. Awais ¹¹⁶, M. I. M. Awan¹¹⁶, W. A. Khan ¹¹⁶, V. Avati¹¹⁷, L. Forthomme ¹¹⁷, L. Grzanka ¹¹⁷, M. Malawski ¹¹⁷, K. Piotrzkowski ¹¹⁷, M. Bluj ¹¹⁸, M. Górski ¹¹⁸, M. Kazana ¹¹⁸, M. Szleper ¹¹⁸, P. Zalewski ¹¹⁸, K. Bunkowski ¹¹⁹, K. Doroba ¹¹⁹, A. Kalinowski ¹¹⁹, M. Konecki ¹¹⁹, J. Krolikowski ¹¹⁹, A. Muhammad ¹¹⁹, P. Fokow ¹²⁰, K. Pozniak ¹²⁰, W. Zabolotny ¹²⁰, M. Araujo ¹²¹, D. Bastos ¹²¹, C. Beirão Da Cruz E. Silva¹²¹, A. Boletti ¹²¹, M. Bozzo ¹²¹, T. Camporesi ¹²¹, G. Da Molin ¹²¹, M. Gallinaro ¹²¹, J. Hollar ¹²¹, N. Leonardo ¹²¹, G. B. Marozzo ¹²¹, A. Petrilli ¹²¹, M. Pisano ¹²¹, J. Seixas ¹²¹, J. Varela ¹²¹, J. W. Wulff ¹²¹, P. Adzic ¹²², L. Markovic ¹²², P. Milenovic ¹²², V. Milosevic ¹²², D. Devetak ¹²³, M. Dordevic ¹²³, J. Milosevic ¹²³, L. Nadderd ¹²³, V. Rekovic¹²³, M. Stojanovic ¹²³, M. Alcalde Martinez ¹²⁴, J. Alcaraz Maestre ¹²⁴, J. A. Brochero Cifuentes ¹²⁴, M. Cepeda ¹²⁴, M. Cerrada ¹²⁴, N. Colino ¹²⁴, B. De La Cruz ¹²⁴, A. Delgado Peris ¹²⁴, A. Escalante Del Valle ¹²⁴, C. Fernandez Bedoya ¹²⁴, D. Fernández Del Val¹²⁴, J. P. Fernández Ramos¹²⁴, J. Flix ¹²⁴, M. C. Fouz ¹²⁴, M. Gonzalez Hernandez ¹²⁴, O. Gonzalez Lopez ¹²⁴, S. Goy Lopez ¹²⁴, J. M. Hernandez ¹²⁴, M. I. Josa ¹²⁴, J. Llorente Merino ¹²⁴, O. Manzanilla ¹²⁴, C. Martin Perez ¹²⁴, E. Martin Viscasillas ¹²⁴, D. Moran ¹²⁴, C. M. Morcillo Perez ¹²⁴, Á. Navarro Tobar ¹²⁴, R. Paz Herrera ¹²⁴, J. Puerta Pelayo ¹²⁴, A. M. Pérez-Calero Yzquierdo¹²⁴, I. Redondo ¹²⁴, J. Vazquez Escobar ¹²⁴, J. F. de Trocóniz ¹²⁵, B. Alvarez Gonzalez ¹²⁶, J. Ayllon Torresano ¹²⁶, A. Cardini ¹²⁶, J. Cuevas ¹²⁶, J. Del Riego Badas ¹²⁶, D. Estrada Acevedo ¹²⁶, J. Fernandez Menendez ¹²⁶, S. Folgueras ¹²⁶, I. Gonzalez Caballero ¹²⁶, P. Leguina ¹²⁶, M. Obeso Menendez ¹²⁶, E. Palencia Cortezon ¹²⁶, J. Prado Pico ¹²⁶, A. Soto Rodríguez ¹²⁶, P. Vischia ¹²⁶, S. Blanco Fernández ¹²⁷, I. J. Cabrillo ¹²⁷, A. Calderon ¹²⁷, J. Duarte Campderros ¹²⁷, M. Fernandez ¹²⁷, G. Gomez ¹²⁷, C. Lasaosa García ¹²⁷, R. Lopez Ruiz ¹²⁷, C. Martinez Rivero ¹²⁷, P. Martinez Ruiz del Arbol ¹²⁷, F. Matorras ¹²⁷, P. Matorras Cuevas ¹²⁷, E. Navarrete Ramos ¹²⁷, J. Piedra Gomez ¹²⁷, C. Quintana San Emeterio ¹²⁷, L. Scodellaro ¹²⁷, I. Vila ¹²⁷, R. Vilar Cortabitarte ¹²⁷, J. M. Vizan Garcia ¹²⁷, D. C. W. Dhammage ¹²⁸, B. Kailasapathy ^128,fff, W. G. Dharmaratna ^129,ggg, K. Liyanage ¹²⁹, N. Perera ¹²⁹, L. Caminada ^130,hhh, W. Erdmann ¹³⁰, R. Horisberger ¹³⁰, Q. Ingram ¹³⁰, H. C. Kaestli ¹³⁰, D. Kotlinski ¹³⁰, C. Lange ¹³⁰, U. Langenegger ¹³⁰, A. Nigamova ¹³⁰, L. Noehte ^130,hhh, T. Rohe ¹³⁰, A. Samalan ¹³⁰, T. K. Aarrestad ¹³¹, M. Backhaus ¹³¹, T. Bevilacqua ^131,hhh, G. Bonomelli ¹³¹, C. Cazzaniga ¹³¹, K. Datta ¹³¹, P. De Bryas Dexmiers D’Archiacchiac ^131,j, A. De Cosa ¹³¹, G. Dissertori ¹³¹, M. Dittmar¹³¹, M. Donegà ¹³¹, F. Glessgen ¹³¹, C. Grab ¹³¹, T. G. Harte ¹³¹, N. Härringer ¹³¹, W. Lustermann ¹³¹, M. Malucchi ¹³¹, R. A. Manzoni ¹³¹, L. Marchese ¹³¹, A. Mascellani ^131,j, F. Nessi-Tedaldi ¹³¹, F. Pauss ¹³¹, B. Ristic ¹³¹, S. Rohletter¹³¹, R. Seidita ¹³¹, J. Steggemann ^131,j, A. Tarabini ¹³¹, C. Z. Tee ¹³¹, D. Valsecchi ¹³¹, R. Wallny ¹³¹, C. Amsler ^132,iii, F. Bilandzija ¹³², P. Bärtschi ¹³², M. F. Canelli ¹³², G. Celotto ¹³², V. Guglielmi ¹³², A. Jofrehei ¹³², B. Kilminster ¹³², T. H. Kwok ¹³², S. Leontsinis ¹³², V. Lukashenko ¹³², A. Macchiolo ¹³², F. Meng ¹³², M. Missiroli ¹³², J. Motta ¹³², P. Robmann¹³², E. Shokr ¹³², F. Stäger ¹³², R. Tramontano ¹³², P. Viscone ¹³², D. Bhowmik¹³³, C. M. Kuo¹³³, P. K. Rout ¹³³, S. Taj ¹³³, P. C. Tiwari ^133,ll, L. Ceard¹³⁴, K. F. Chen ¹³⁴, Z. g. Chen¹³⁴, A. De Iorio ¹³⁴, G. W. S. Hou ¹³⁴, T. h. Hsu¹³⁴, Y. w. Kao¹³⁴, S. Karmakar ¹³⁴, G. Kole ¹³⁴, Y. y. Li ¹³⁴, R. S. Lu ¹³⁴, E. Paganis ¹³⁴, X. f. Su ¹³⁴, J. Thomas-Wilsker ¹³⁴, L. s. Tsai¹³⁴, D. Tsionou¹³⁴, H. y. Wu ¹³⁴, E. Yazgan ¹³⁴, C. Asawatangtrakuldee ¹³⁵, N. Srimanobhas ¹³⁵, Y. Maghrbi ¹³⁶, D. Agyel ¹³⁷, F. Dolek ¹³⁷, I. Dumanoglu ^137,jjj, Y. Guler ^137,kkk, E. Gurpinar Guler ^137,kkk, C. Isik ¹³⁷, O. Kara ^137,lll, A. Kayis Topaksu ¹³⁷, Y. 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Le Mahieu ¹⁶⁹, J. Marquez ¹⁶⁹, M. Murray ¹⁶⁹, M. Nickel ¹⁶⁹, S. Popescu ^169,iiii, C. Rogan ¹⁶⁹, C. Royon ¹⁶⁹, S. Rudrabhatla ¹⁶⁹, S. Sanders ¹⁶⁹, C. Smith ¹⁶⁹, G. Wilson ¹⁶⁹, B. Allmond ¹⁷⁰, N. Islam¹⁷⁰, A. Ivanov ¹⁷⁰, K. Kaadze ¹⁷⁰, Y. Maravin ¹⁷⁰, J. Natoli ¹⁷⁰, G. G. Reddy ¹⁷⁰, D. Roy ¹⁷⁰, G. Sorrentino ¹⁷⁰, B. Blumenfeld ¹⁷¹, J. Davis ¹⁷¹, A. Gritsan ¹⁷¹, L. Kang ¹⁷¹, S. Kyriacou ¹⁷¹, P. Maksimovic ¹⁷¹, M. Roguljic ¹⁷¹, S. Sekhar ¹⁷¹, M. V. Srivastav ¹⁷¹, M. Swartz ¹⁷¹, D. Baden ¹⁷², A. Belloni ¹⁷², J. Bistany-riebman¹⁷², S. C. Eno ¹⁷², N. J. Hadley ¹⁷², S. Jabeen ¹⁷², R. G. Kellogg ¹⁷², T. Koeth ¹⁷², B. Kronheim¹⁷², S. Lascio ¹⁷², P. Major ¹⁷², A. Mignerey ¹⁷², C. Palmer ¹⁷², C. Papageorgakis ¹⁷², M. M. Paranjpe¹⁷², E. Popova ^172,dddd, A. Shevelev ¹⁷², L. Zhang ¹⁷², S. Cholak ¹⁷³, G. De Castro¹⁷³, Z. Demiragli ¹⁷³, C. Erice ¹⁷³, C. Fangmeier ¹⁷³, C. Fernandez Madrazo ¹⁷³, J. Fulcher ¹⁷³, F. Golf ¹⁷³, S. Jeon ¹⁷³, J. O’Cain ¹⁷³, I. Reed ¹⁷³, J. Rohlf ¹⁷³, K. Salyer ¹⁷³, D. Sperka ¹⁷³, D. Spitzbart ¹⁷³, I. Suarez ¹⁷³, A. Tsatsos ¹⁷³, E. Wurtz¹⁷³, A. G. Zecchinelli ¹⁷³, A. Aarif¹⁷⁴, G. Alverson ¹⁷⁴, E. Barberis ¹⁷⁴, J. Bonilla ¹⁷⁴, B. Bylsma¹⁷⁴, M. Campana ¹⁷⁴, J. Dervan ¹⁷⁴, Y. Haddad ¹⁷⁴, Y. Han ¹⁷⁴, I. Israr ¹⁷⁴, A. Krishna ¹⁷⁴, M. Lu ¹⁷⁴, N. Manganelli ¹⁷⁴, R. Mccarthy ¹⁷⁴, D. M. Morse ¹⁷⁴, T. Orimoto ¹⁷⁴, L. Skinnari ¹⁷⁴, C. S. Thoreson ¹⁷⁴, E. Tsai ¹⁷⁴, D. Wood ¹⁷⁴, C. Baldenegro Barrera ¹⁷⁵, H. Bossi ¹⁷⁵, S. Bright-Thonney ¹⁷⁵, I. A. Cali ¹⁷⁵, Y. c. Chen ¹⁷⁵, P. c. Chou ¹⁷⁵, M. D’Alfonso ¹⁷⁵, J. Eysermans ¹⁷⁵, C. Freer ¹⁷⁵, G. Gomez Ceballos ¹⁷⁵, M. Goncharov¹⁷⁵, G. Grosso ¹⁷⁵, P. Harris¹⁷⁵, D. Hoang ¹⁷⁵, G. M. Innocenti ¹⁷⁵, K. Ivanov ¹⁷⁵, G. Kopp ¹⁷⁵, D. Kovalskyi ¹⁷⁵, L. Lavezzo ¹⁷⁵, Y. J. Lee ¹⁷⁵, K. Long ¹⁷⁵, C. Mcginn ¹⁷⁵, A. Novak ¹⁷⁵, M. I. Park ¹⁷⁵, C. Paus ¹⁷⁵, C. Reissel ¹⁷⁵, C. Roland ¹⁷⁵, G. Roland ¹⁷⁵, S. Rothman ¹⁷⁵, T. a. Sheng ¹⁷⁵, G. Stephans ¹⁷⁵, D. Walter ¹⁷⁵, J. Wang¹⁷⁵, Z. Wang ¹⁷⁵, B. Wyslouch ¹⁷⁵, T. Yang ¹⁷⁵, S. Bhattacharya ¹⁷⁶, P. E. Karchin ¹⁷⁶, A. Alpana ¹⁷⁷, B. Crossman ¹⁷⁷, W. J. Jackson¹⁷⁷, C. Kapsiak ¹⁷⁷, M. Krohn ¹⁷⁷, D. Mahon ¹⁷⁷, J. Mans ¹⁷⁷, B. Marzocchi ¹⁷⁷, R. Rusack ¹⁷⁷, O. Sancar ¹⁷⁷, R. Saradhy ¹⁷⁷, N. Strobbe ¹⁷⁷, J. M. Hogan ¹⁷⁸, K. Bloom ¹⁷⁹, D. R. Claes ¹⁷⁹, G. Haza ¹⁷⁹, J. Hossain ¹⁷⁹, C. Joo ¹⁷⁹, I. Kravchenko ¹⁷⁹, K. H. M. Kwok ¹⁷⁹, A. Rohilla ¹⁷⁹, J. E. Siado ¹⁷⁹, W. Tabb ¹⁷⁹, A. Vagnerini ¹⁷⁹, A. Wightman ¹⁷⁹, B. Chiarito¹⁸⁰, J. P. Chou ¹⁸⁰, S. V. Clark ¹⁸⁰, S. Donnelly¹⁸⁰, D. Gadkari ¹⁸⁰, Y. Gershtein ¹⁸⁰, E. Halkiadakis ¹⁸⁰, C. Houghton ¹⁸⁰, D. Jaroslawski ¹⁸⁰, A. Kobert ¹⁸⁰, I. Laflotte ¹⁸⁰, A. Lath ¹⁸⁰, J. Martins ¹⁸⁰, M. Perez Prada ¹⁸⁰, B. Rand ¹⁸⁰, J. Reichert ¹⁸⁰, P. Saha ¹⁸⁰, S. Salur ¹⁸⁰, S. Somalwar ¹⁸⁰, R. Stone ¹⁸⁰, S. A. Thayil ¹⁸⁰, S. Thomas¹⁸⁰, J. Vora ¹⁸⁰, H. Bouchamaoui ¹⁸¹, G. Dezoort ¹⁸¹, P. Elmer ¹⁸¹, A. Frankenthal ^181,jjjj, M. Galli ¹⁸¹, B. Greenberg ¹⁸¹, N. Haubrich ¹⁸¹, K. Kennedy¹⁸¹, Y. Lai ¹⁸¹, D. Lange ¹⁸¹, A. Loeliger ¹⁸¹, D. Marlow ¹⁸¹, I. Ojalvo ¹⁸¹, J. Olsen ¹⁸¹, F. Simpson ¹⁸¹, D. Stickland ¹⁸¹, C. Tully ¹⁸¹, H. Bandyopadhyay ¹⁸², L. Hay ¹⁸², H. w. Hsia ¹⁸², I. Iashvili ¹⁸², A. Kalogeropoulos ¹⁸², A. Kharchilava ¹⁸², A. Mandal ¹⁸², M. Morris ¹⁸², D. Nguyen ¹⁸², O. Poncet ¹⁸², S. Rappoccio ¹⁸², H. Rejeb Sfar¹⁸², W. Terrill ¹⁸², A. Williams ¹⁸², D. Yu ¹⁸², J. Alexander ¹⁸³, X. Chen ¹⁸³, J. Dickinson ¹⁸³, A. Duquette¹⁸³, J. Fan ¹⁸³, X. Fan ¹⁸³, J. Grassi ¹⁸³, S. Hogan ¹⁸³, P. Kotamnives ¹⁸³, J. Monroy ¹⁸³, G. Niendorf ¹⁸³, M. Oshiro ¹⁸³, J. R. Patterson ¹⁸³, A. Ryd ¹⁸³, J. Thom ¹⁸³, P. Wittich ¹⁸³, R. Zou ¹⁸³, L. Zygala ¹⁸³, O. Bessidskaia Bylund¹⁸⁴, A. Bodek ¹⁸⁴, P. de Barbaro ¹⁸⁴, R. Demina ¹⁸⁴, A. Garcia-Bellido ¹⁸⁴, H. S. Hare ¹⁸⁴, O. Hindrichs ¹⁸⁴, N. Parmar ¹⁸⁴, P. Parygin ^184,dddd, H. Seo ¹⁸⁴, R. Taus ¹⁸⁴, Y. h. Yu ¹⁸⁴, M. Carrigan ¹⁸⁵, R. De Los Santos ¹⁸⁵, L. S. Durkin ¹⁸⁵, C. Hill ¹⁸⁵, M. Joyce ¹⁸⁵, D. A. Wenzl¹⁸⁵, B. L. Winer ¹⁸⁵, B. Yates ¹⁸⁵, J. Alison ¹⁸⁶, S. An ¹⁸⁶, M. Cremonesi¹⁸⁶, V. Dutta ¹⁸⁶, E. Y. Ertorer ¹⁸⁶, T. Ferguson ¹⁸⁶, T. A. Gómez Espinosa¹⁸⁶, A. Harilal ¹⁸⁶, A. Kallil Tharayil¹⁸⁶, M. Kanemura¹⁸⁶, C. Liu ¹⁸⁶, M. Marchegiani ¹⁸⁶, P. Meiring ¹⁸⁶, S. Murthy ¹⁸⁶, P. Palit ¹⁸⁶, K. Park ¹⁸⁶, M. Paulini ¹⁸⁶, A. Roberts ¹⁸⁶, A. Sanchez ¹⁸⁶, S. Malik ¹⁸⁷, R. Sharma ¹⁸⁷, G. Barone ¹⁸⁸, G. Benelli ¹⁸⁸, D. Cutts ¹⁸⁸, S. Ellis ¹⁸⁸, L. Gouskos ¹⁸⁸, M. Hadley ¹⁸⁸, U. Heintz ¹⁸⁸, K. W. Ho ¹⁸⁸, T. Kwon ¹⁸⁸, L. Lambrecht ¹⁸⁸, G. Landsberg ¹⁸⁸, K. T. Lau ¹⁸⁸, J. Luo ¹⁸⁸, S. Mondal ¹⁸⁸, J. Roloff ¹⁸⁸, T. Russell ¹⁸⁸, S. Sagir ^188,kkkk, X. Shen ¹⁸⁸, M. Stamenkovic ¹⁸⁸, N. Venkatasubramanian ¹⁸⁸, D. Ally ¹⁸⁹, A. G. Delannoy ¹⁸⁹, S. Fiorendi ¹⁸⁹, J. Harris¹⁸⁹, T. Holmes ¹⁸⁹, A. R. Kanuganti ¹⁸⁹, N. Karunarathna ¹⁸⁹, J. Lawless¹⁸⁹, L. Lee ¹⁸⁹, E. Nibigira ¹⁸⁹, B. Skipworth¹⁸⁹, S. Spanier ¹⁸⁹, E. Appelt ¹⁹⁰, Y. Chen ¹⁹⁰, S. Greene¹⁹⁰, A. Gurrola ¹⁹⁰, W. Johns ¹⁹⁰, R. Kunnawalkam Elayavalli ¹⁹⁰, A. Melo ¹⁹⁰, D. Rathjens ¹⁹⁰, F. Romeo ¹⁹⁰, P. Sheldon ¹⁹⁰, S. Tuo ¹⁹⁰, J. Velkovska ¹⁹⁰, J. Viinikainen ¹⁹⁰, J. Zhang¹⁹⁰, D. Aebi ¹⁹¹, M. Ahmad ¹⁹¹, T. Akhter ¹⁹¹, K. Androsov ¹⁹¹, A. Basnet ¹⁹¹, A. Bolshov¹⁹¹, O. Bouhali ^191,llll, A. Cagnotta ¹⁹¹, S. Cooperstein ¹⁹¹, V. D’Amante ¹⁹¹, R. Eusebi ¹⁹¹, P. Flanagan ¹⁹¹, J. Gilmore ¹⁹¹, Y. Guo¹⁹¹, T. Kamon ¹⁹¹, S. Luo ¹⁹¹, R. Mueller ¹⁹¹, A. Safonov ¹⁹¹, D. Acosta ¹⁹², A. Agrawal ¹⁹², C. Arbour ¹⁹², T. Carnahan ¹⁹², K. M. Ecklund ¹⁹², F. J. Geurts ¹⁹², T. Huang ¹⁹², I. Krommydas ¹⁹², N. Lewis¹⁹², W. Li ¹⁹², J. Lin ¹⁹², O. Miguel Colin ¹⁹², B. P. Padley ¹⁹², R. Redjimi ¹⁹², J. Rotter ¹⁹², C. Vico Villalba ¹⁹², M. Wulansatiti ¹⁹², E. Yigitbasi ¹⁹², Y. Zhang ¹⁹², N. Akchurin ¹⁹³, J. Damgov ¹⁹³, Y. Feng ¹⁹³, N. Gogate ¹⁹³, W. Jin ¹⁹³, S. W. Lee ¹⁹³, C. Madrid ¹⁹³, A. Mankel ¹⁹³, T. Peltola ¹⁹³, I. Volobouev ¹⁹³, S. Abdullin ¹⁹⁴, A. Brinkerhoff ¹⁹⁴, E. Collins ¹⁹⁴, M. R. Darwish ¹⁹⁴, J. Dittmann ¹⁹⁴, K. Hatakeyama ¹⁹⁴, V. Hegde ¹⁹⁴, J. Hiltbrand ¹⁹⁴, B. McMaster ¹⁹⁴, J. Samudio ¹⁹⁴, S. Sawant ¹⁹⁴, C. Sutantawibul ¹⁹⁴, J. Wilson ¹⁹⁴, B. Cardwell ¹⁹⁵, H. Chung ¹⁹⁵, B. Cox ¹⁹⁵, J. Hakala ¹⁹⁵, G. Hamilton Ilha Machado¹⁹⁵, R. Hirosky ¹⁹⁵, M. Jose¹⁹⁵, A. Ledovskoy ¹⁹⁵, C. Mantilla ¹⁹⁵, C. Neu ¹⁹⁵, C. Ramón Álvarez ¹⁹⁵, Z. Wu ¹⁹⁵, A. Aravind ¹⁹⁶, S. Banerjee ¹⁹⁶, K. Black ¹⁹⁶, T. Bose ¹⁹⁶, E. Chavez ¹⁹⁶, S. Dasu ¹⁹⁶, P. Everaerts ¹⁹⁶, C. Galloni¹⁹⁶, H. He ¹⁹⁶, M. Herndon ¹⁹⁶, A. Herve ¹⁹⁶, C. K. Koraka ¹⁹⁶, S. Lomte ¹⁹⁶, R. Loveless ¹⁹⁶, A. Mallampalli ¹⁹⁶, A. Mohammadi ¹⁹⁶, S. Mondal¹⁹⁶, T. Nelson¹⁹⁶, G. Parida ¹⁹⁶, D. Pinna ¹⁹⁶, L. Pétré ¹⁹⁶, A. Savin¹⁹⁶, V. Shang ¹⁹⁶, V. Sharma ¹⁹⁶, R. Simeon¹⁹⁶, W. H. Smith ¹⁹⁶, D. Teague¹⁹⁶, A. Warden ¹⁹⁶, L. Dudko ¹⁹⁸, V. Kim ^198,dddd, V. Murzin ¹⁹⁸, V. Oreshkin ¹⁹⁸, D. Sosnov ¹⁹⁸, S. Afanasiev ¹⁹⁷, V. Alexakhin ¹⁹⁷, Y. Andreev ¹⁹⁷, T. Aushev ¹⁹⁷, D. Budkouski ¹⁹⁷, R. Chistov ¹⁹⁷, M. Danilov ¹⁹⁷, T. Dimova ¹⁹⁷, A. Ershov ¹⁹⁷, S. Gninenko ¹⁹⁷, I. Gorbunov ¹⁹⁷, A. Kamenev ¹⁹⁷, V. Karjavine ¹⁹⁷, M. Kirsanov ¹⁹⁷, V. Klyukhin ¹⁹⁷, O. Kodolova ^197,mmmm, V. Korenkov ¹⁹⁷, I. Korsakov¹⁹⁷, A. Kozyrev ¹⁹⁷, N. Krasnikov ¹⁹⁷, A. Lanev ¹⁹⁷, A. Malakhov ¹⁹⁷, V. Matveev ¹⁹⁷, A. Nikitenko ^{197,mmmm,nnnn}, V. Palichik ¹⁹⁷, V. Perelygin ¹⁹⁷, S. Petrushanko ¹⁹⁷, O. Radchenko ¹⁹⁷, M. Savina ¹⁹⁷, V. Shalaev ¹⁹⁷, S. Shmatov ¹⁹⁷, S. Shulha ¹⁹⁷, Y. Skovpen ¹⁹⁷, K. Slizhevskiy¹⁹⁷, V. Smirnov ¹⁹⁷, O. Teryaev ¹⁹⁷, I. Tlisova ¹⁹⁷, A. Toropin ¹⁹⁷, N. Voytishin ¹⁹⁷, A. Zarubin ¹⁹⁷, I. Zhizhin ¹⁹⁷, E. Boos ¹⁹⁸, V. Bunichev ¹⁹⁸, M. Dubinin ^198,bbbb, A. Gribushin ¹⁹⁸, V. Savrin ¹⁹⁸, and A. Snigirev ¹⁹⁸ (CMS Collaboration)

¹Yerevan Physics Institute, Yerevan, Armenia
²Institut für Hochenergiephysik, Vienna, Austria
³Universiteit Antwerpen, Antwerpen, Belgium
⁴Vrije Universiteit Brussel, Brussel, Belgium
⁵Université Libre de Bruxelles, Bruxelles, Belgium
⁶Ghent University, Ghent, Belgium
⁷Université Catholique de Louvain, Louvain-la-Neuve, Belgium
⁸Centro Brasileiro de Pesquisas Fisicas, Rio de Janeiro, Brazil
⁹Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
¹⁰Universidade Estadual Paulista and Universidade Federal do ABC, São Paulo, Brazil
¹¹Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, Sofia, Bulgaria
¹²University of Sofia, Sofia, Bulgaria
¹³CERN, European Organization for Nuclear Research, Geneva, Switzerland
¹⁴Instituto de Alta Investigación, Universidad de Tarapacá, Arica, Chile
¹⁵Universidad Técnica Federico Santa María, Valparaiso, Chile
¹⁶Beihang University, Beijing, China
¹⁷Department of Physics, Tsinghua University, Beijing, China
¹⁸Institute of High Energy Physics, Beijing, China
¹⁹State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing, China
²⁰State Key Laboratory of Nuclear Physics and Technology, Institute of Quantum Matter, South China Normal University, Guangzhou, China, Guangzhou, China
²¹Sun Yat-Sen University, Guangzhou, China
²²University of Science and Technology of China, Hefei, China
²³Nanjing Normal University, Nanjing, China
²⁴Institute of Modern Physics and Key Laboratory of Nuclear Physics and Ion-beam Application (MOE)—Fudan University, Shanghai, China
²⁵Zhejiang University—Department of Physics, Zhejiang, China
²⁶Universidad de Los Andes, Bogota, Colombia
²⁷Universidad de Antioquia, Medellin, Colombia
²⁸University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, Split, Croatia
²⁹University of Split, Faculty of Science, Split, Croatia
³⁰Institute Rudjer Boskovic, Zagreb, Croatia
³¹University of Cyprus, Nicosia, Cyprus
³²Charles University, Prague, Czech Republic
³³Universidad San Francisco de Quito, Quito, Ecuador
³⁴Academy of Scientific Research and Technology of the Arab Republic of Egypt, Egyptian Network of High Energy Physics, Cairo, Egypt
³⁵Center for High Energy Physics (CHEP-FU), Fayoum University, El-Fayoum, Egypt
³⁶National Institute of Chemical Physics and Biophysics, Tallinn, Estonia
³⁷Department of Physics, University of Helsinki, Helsinki, Finland
³⁸Helsinki Institute of Physics, Helsinki, Finland
³⁹Lappeenranta-Lahti University of Technology, Lappeenranta, Finland
⁴⁰IRFU, CEA, Université Paris-Saclay, Gif-sur-Yvette, France
⁴¹Laboratoire Leprince-Ringuet, CNRS/IN2P3, Ecole Polytechnique, Institut Polytechnique de Paris, Palaiseau, France
⁴²Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg, CNRS/IN2P3, Strasbourg, France
⁴³Centre de Calcul de l’Institut National de Physique Nucleaire et de Physique des Particules, CNRS/IN2P3, Villeurbanne, France
⁴⁴Institut de Physique des 2 Infinis de Lyon (IP2I), Villeurbanne, France
⁴⁵Georgian Technical University, Tbilisi, Georgia
⁴⁶RWTH Aachen University, I. Physikalisches Institut, Aachen, Germany
⁴⁷RWTH Aachen University, III. Physikalisches Institut A, Aachen, Germany
⁴⁸RWTH Aachen University, III. Physikalisches Institut B, Aachen, Germany
⁴⁹Deutsches Elektronen-Synchrotron, Hamburg, Germany
⁵⁰University of Hamburg, Hamburg, Germany
⁵¹Institut für Experimentelle Teilchenphysik, Karlsruhe, Germany
⁵²Institute of Nuclear and Particle Physics (INPP), NCSR Demokritos, Aghia Paraskevi, Greece
⁵³National and Kapodistrian University of Athens, Athens, Greece
⁵⁴National Technical University of Athens, Athens, Greece
⁵⁵University of Ioánnina, Ioánnina, Greece
⁵⁶HUN-REN Wigner Research Centre for Physics, Budapest, Hungary
⁵⁷MTA-ELTE Lendület CMS Particle and Nuclear Physics Group, Eötvös Loránd University, Budapest, Hungary
⁵⁸Faculty of Informatics, University of Debrecen, Debrecen, Hungary, Debrecen, Hungary
⁵⁹HUN-REN ATOMKI—Institute of Nuclear Research, Debrecen, Hungary
⁶⁰Karoly Robert Campus, MATE Institute of Technology, Gyongyos, Hungary
⁶¹Indian Institute of Technology Bhubaneswar, Bhubaneswar, India
⁶²Panjab University, Chandigarh, India
⁶³University of Delhi, Delhi, India
⁶⁴Indian Institute of Technology Mandi (IIT-Mandi), Himachal Pradesh, India
⁶⁵University of Hyderabad, Hyderabad, India
⁶⁶Indian Institute of Technology Kanpur, Kanpur, India
⁶⁷Saha Institute of Nuclear Physics, HBNI, Kolkata, India
⁶⁸Indian Institute of Technology Madras, Madras, India
⁶⁹Indian lnstitute of Science Education and Research Mohali, Mohali, India
⁷⁰Tata Institute of Fundamental Research-A, Mumbai, India
⁷¹Tata Institute of Fundamental Research-B, Mumbai, India
⁷²National Institute of Science Education and Research, Jatni, Khorda, Odisha 752050, India Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai 400094, India, Odisha, India
⁷³Indian Institute of Science Education and Research (IISER), Pune, India
⁷⁴Indian Institute of Technology Hyderabad, Telangana, India
⁷⁵Isfahan University of Technology, Isfahan, Iran
⁷⁶Institute for Research in Fundamental Sciences (IPM), Tehran, Iran
⁷⁷University College Dublin, Dublin, Ireland
^78aINFN Sezione di Bari, Bari, Italy
^78bUniversità di Bari, Bari, Italy
^78cPolitecnico di Bari, Bari, Italy
^79aINFN Sezione di Bologna, Bologna, Italy
^79bUniversità di Bologna, Bologna, Italy
^80aINFN Sezione di Catania, Catania, Italy
^80bUniversità di Catania, Catania, Italy
^81aINFN Sezione di Firenze, Firenze, Italy
^81bUniversità di Firenze, Firenze, Italy
⁸²INFN Laboratori Nazionali di Frascati, Frascati, Italy
^83aINFN Sezione di Genova, Genova, Italy
^83bUniversità di Genova, Genova, Italy
^84aINFN Sezione di Milano-Bicocca, Milano-Bicocca, Italy
^84bUniversità di Milano-Bicocca, Milano, Milano-Bicocca, Italy
^85aINFN Sezione di Napoli, Napoli, Italy
^85bUniversità di Napoli ’Federico II’, Napoli, Italy
^85cUniversità della Basilicata (Potenza), Napoli, Italy
^85dScuola Superiore Meridionale (SSM), Napoli, Italy
^86aINFN Sezione di Padova, Padova, Italy
^86bUniversità di Padova, Padova, Italy
^86cUniversita degli Studi di Cagliari, Padova, Italy
^87aINFN Sezione di Pavia, Pavia, Italy
^87bUniversità di Pavia, Pavia, Italy
^88aINFN Sezione di Perugia, Perugia, Italy
^88bUniversità di Perugia, Perugia, Italy
^89aINFN Sezione di Pisa, Pisa, Italy
^89bUniversità di Pisa, Pisa, Italy
^89cScuola Normale Superiore di Pisa, Pisa, Italy
^89dUniversità di Siena, Pisa, Italy
^90aINFN Sezione di Roma, Roma, Italy
^90bSapienza Università di Roma, Roma, Italy
^91aINFN Sezione di Torino, Torino, Italy
^91bUniversità di Torino, Torino, Italy
^91cUniversità del Piemonte Orientale (Novara), Torino, Italy
^92aINFN Sezione di Trieste, Trieste, Italy
^92bUniversità di Trieste, Trieste, Italy
⁹³Kyungpook National University, Daegu, Korea
⁹⁴Department of Mathematics and Physics—Gangneung-Wonju National University, Gangneung, Korea
⁹⁵Chonnam National University, Institute for Universe and Elementary Particles, Kwangju, Korea
⁹⁶Hanyang University, Seoul, Korea
⁹⁷Korea University, Seoul, Korea
⁹⁸Kyung Hee University, Department of Physics, Seoul, Korea
⁹⁹Sejong University, Seoul, Korea
¹⁰⁰Seoul National University, Seoul, Korea
¹⁰¹University of Seoul, Seoul, Korea
¹⁰²Yonsei University, Department of Physics, Seoul, Korea
¹⁰³Sungkyunkwan University, Suwon, Korea
¹⁰⁴College of Engineering and Technology, American University of the Middle East (AUM), Dasman, Kuwait
¹⁰⁵Kuwait University—College of Science—Department of Physics, Safat, Kuwait
¹⁰⁶Riga Technical University, Riga, Latvia
¹⁰⁷University of Latvia (LU), Riga, Latvia
¹⁰⁸Vilnius University, Vilnius, Lithuania
¹⁰⁹National Centre for Particle Physics, Universiti Malaya, Kuala Lumpur, Malaysia
¹¹⁰University of Sonora (UNISON), Hermosillo, Mexico
¹¹¹Centro de Investigacion y de Estudios Avanzados del IPN, Mexico City, Mexico
¹¹²Universidad Iberoamericana, Mexico City, Mexico
¹¹³Benemerita Universidad Autonoma de Puebla, Puebla, Mexico
¹¹⁴University of Montenegro, Podgorica, Montenegro
¹¹⁵University of Canterbury, Christchurch, New Zealand
¹¹⁶National Centre for Physics, Quaid-I-Azam University, Islamabad, Pakistan
¹¹⁷AGH University of Krakow, Krakow, Poland
¹¹⁸National Centre for Nuclear Research, Swierk, Poland
¹¹⁹Institute of Experimental Physics, Faculty of Physics, University of Warsaw, Warsaw, Poland
¹²⁰Warsaw University of Technology, Warsaw, Poland
¹²¹Laboratório de Instrumentação e Física Experimental de Partículas, Lisboa, Portugal
¹²²Faculty of Physics, University of Belgrade, Belgrade, Serbia
¹²³Vinca Institute of Nuclear Science, Belgrade, Serbia
¹²⁴Centro de Investigaciones Energéticas Medioambientales y Tecnológicas (CIEMAT), Madrid, Spain
¹²⁵Universidad Autónoma de Madrid, Madrid, Spain
¹²⁶Universidad de Oviedo, Instituto Universitario de Ciencias y Tecnologías Espaciales de Asturias (ICTEA), Oviedo, Spain
¹²⁷Instituto de Física de Cantabria (IFCA), CSIC-Universidad de Cantabria, Santander, Spain
¹²⁸University of Colombo, Colombo, Sri Lanka
¹²⁹University of Ruhuna, Department of Physics, Matara, Sri Lanka
¹³⁰PSI Center for Neutron and Muon Sciences, Villigen, Switzerland
¹³¹ETH Zurich—Institute for Particle Physics and Astrophysics (IPA), Zurich, Switzerland
¹³²Universität Zürich, Zurich, Switzerland
¹³³National Central University, Chung-Li, Taiwan
¹³⁴National Taiwan University (NTU), Taipei, Taiwan
¹³⁵High Energy Physics Research Unit, Department of Physics, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
¹³⁶Tunis El Manar University, Tunis, Tunisia
¹³⁷Çukurova University, Adana, Türkiye
¹³⁸Hacettepe University, Ankara, Türkiye
¹³⁹Middle East Technical University, Physics Department, Ankara, Türkiye
¹⁴⁰Bogazici University, Istanbul, Türkiye
¹⁴¹Istanbul Technical University, Istanbul, Türkiye
¹⁴²Istanbul University, Istanbul, Türkiye
¹⁴³Yildiz Technical University, Istanbul, Türkiye
¹⁴⁴Institute for Scintillation Materials of National Academy of Science of Ukraine, Kharkiv, Ukraine
¹⁴⁵National Science Centre, Kharkiv Institute of Physics and Technology, Kharkiv, Ukraine
¹⁴⁶University of Bristol, Bristol, United Kingdom
¹⁴⁷Rutherford Appleton Laboratory, Didcot, United Kingdom
¹⁴⁸Imperial College, London, United Kingdom
¹⁴⁹Brunel University, Uxbridge, United Kingdom
¹⁵⁰The University of Alabama, Tuscaloosa, Alabama, USA
¹⁵¹University of California, Davis, Davis, California, USA
¹⁵²University of California, San Diego, La Jolla, California, USA
¹⁵³University of California, Los Angeles, California, USA
¹⁵⁴California Institute of Technology, Pasadena, California, USA
¹⁵⁵University of California, Riverside, Riverside, California, USA
¹⁵⁶University of California, Santa Barbara—Department of Physics, Santa Barbara, California, USA
¹⁵⁷University of Colorado Boulder, Boulder, Colorado, USA
¹⁵⁸The Catholic University of America, Washington, DC, USA
¹⁵⁹University of Florida, Gainesville, Florida, USA
¹⁶⁰Florida Institute of Technology, Melbourne, Florida, USA
¹⁶¹Florida State University, Tallahassee, Florida, USA
¹⁶²Fermi National Accelerator Laboratory, Batavia, Illinois, USA
¹⁶³University of Illinois Chicago, Chicago, Illinois, USA
¹⁶⁴Northwestern University, Evanston, Illinois, USA
¹⁶⁵Purdue University Northwest, Hammond, Indiana, USA
¹⁶⁶University of Notre Dame, Notre Dame, Indiana, USA
¹⁶⁷Purdue University, West Lafayette, Indiana, USA
¹⁶⁸The University of Iowa, Iowa City, Iowa, USA
¹⁶⁹The University of Kansas, Lawrence, Kansas, USA
¹⁷⁰Kansas State University, Manhattan, Kansas, USA
¹⁷¹Johns Hopkins University, Baltimore, Maryland, USA
¹⁷²University of Maryland, College Park, Maryland, USA
¹⁷³Boston University, Boston, Massachusetts, USA
¹⁷⁴Northeastern University, Boston, Massachusetts, USA
¹⁷⁵Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
¹⁷⁶Wayne State University, Detroit, Michigan, USA
¹⁷⁷University of Minnesota, Minneapolis, Minnesota, USA
¹⁷⁸Bethel University, St. Paul, Minnesota, USA
¹⁷⁹University of Nebraska-Lincoln, Lincoln, Nebraska, USA
¹⁸⁰Rutgers, The State University of New Jersey, Piscataway, New Jersey, USA
¹⁸¹Princeton University, Princeton, New Jersey, USA
¹⁸²State University of New York at Buffalo, Buffalo, New York, USA
¹⁸³Cornell University, Ithaca, New York, USA
¹⁸⁴University of Rochester, Rochester, New York, USA
¹⁸⁵The Ohio State University, Columbus, Ohio, USA
¹⁸⁶Carnegie Mellon University, Pittsburgh, Pennsylvania, USA
¹⁸⁷University of Puerto Rico, Mayaguez, Puerto Rico, USA
¹⁸⁸Brown University, Providence, Rhode Island, USA
¹⁸⁹University of Tennessee, Knoxville, Tennessee, USA
¹⁹⁰Vanderbilt University, Nashville, Tennessee, USA
¹⁹¹Texas A&M University, College Station, Texas, USA
¹⁹²Rice University, Houston, Texas, USA
¹⁹³Texas Tech University, Lubbock, Texas, USA
¹⁹⁴Baylor University, Waco, Texas, USA
¹⁹⁵University of Virginia, Charlottesville, Virginia, USA
¹⁹⁶University of Wisconsin—Madison, Madison, Wisconsin, USA
¹⁹⁷An institute or international laboratory covered by a cooperation agreement with CERN
¹⁹⁸An institute formerly covered by a cooperation agreement with CERN

^*Full author list given at the end of the article.
^aAlso at Yerevan State University, Yerevan, Armenia.
^bAlso at Technische Universität Wien, Vienna, Austria.
^cAlso at Ghent University, Ghent, Belgium.
^dAlso at FACAMP—Faculdades de Campinas, Sao Paulo, Brazil.
^eAlso at Universidade Estadual de Campinas, Campinas, Brazil.
^fAlso at Federal University of Rio Grande do Sul, Porto Alegre, Brazil.
^gAlso at The University of the State of Amazonas, Manaus, Brazil.
^hAlso at Brandenburg University of Technology, Cottbus, Germany.
ⁱAlso at National and Kapodistrian University of Athens, Athens, Greece.
^jAlso at Ecole Polytechnique Fédérale Lausanne, Lausanne, Switzerland.
^kAlso at University of Chinese Academy of Sciences, Beijing, China.
^lAlso at University of Chinese Academy of Sciences, Beijing, China.
^mAlso at School of Physics, Zhengzhou University, Zhengzhou, China.
ⁿAlso at Henan Normal University, Xinxiang, China.
^oAlso at University of Shanghai for Science and Technology, Shanghai, China.
^pAlso at The University of Iowa, Iowa City, Iowa, USA.
^qAlso at Nanjing Normal University, Nanjing, China.
^rAlso at Center for High Energy Physics, Peking University, Beijing, China, Beijing, China.
^sAlso at Helwan University, Cairo, Egypt.
^tAlso at Zewail City of Science and Technology, Zewail, Egypt.
^uAlso at Cairo University, Cairo, Egypt.
^vAlso at Université de Haute Alsace, Mulhouse, France.
^wAlso at Purdue University, West Lafayette, Indiana, USA.
^xAlso at Another institute or international laboratory covered by a cooperation agreement with CERN.
^yAlso at University of Hamburg, Hamburg, Germany.
^zAlso at RWTH Aachen University, III. Physikalisches Institut A, Aachen, Germany.
^aaAlso at Bergische University Wuppertal (BUW), Wuppertal, Germany.
^bbAlso at Institute for Advanced Simulation—Jülich Supercomputing Centre, Juelich, Germany.
^ccAlso at CERN, European Organization for Nuclear Research, Geneva, Switzerland.
^ddAlso at HUN-REN ATOMKI—Institute of Nuclear Research, Debrecen, Hungary.
^eeAlso at Universitatea Babes-Bolyai—Facultatea de Fizica, Cluj-Napoca, Romania.
^ffAlso at MTA-ELTE Lendület CMS Particle and Nuclear Physics Group, Eötvös Loránd University, Budapest, Hungary.
^ggAlso at HUN-REN Wigner Research Centre for Physics, Budapest, Hungary.
^hhAlso at Physics Department, Faculty of Science, Assiut University, Assiut, Egypt.
ⁱⁱAlso at The University of Kansas, Lawrence, Kansas, USA.
^jjAlso at Punjab Agricultural University, Ludhiana, India.
^kkAlso at University of Hyderabad, Hyderabad, India.
^llAlso at Indian Institute of Science (IISC), Bangalore, India.
^mmAlso at University of Visva-Bharati, Santiniketan, India.
ⁿⁿAlso at Institute of Physics, Bhubaneswar, India.
^ooAlso at Deutsches Elektronen-Synchrotron, Hamburg, Germany.
^ppAlso at Isfahan University of Technology, Isfahan, Iran.
^qqAlso at Sharif University of Technology, Tehran, Iran.
^rrAlso at Department of Physics, University of Science and Technology of Mazandaran, Behshahr, Iran.
^ssAlso at Department of Physics, Faculty of Science, Arak University, Arak, Iran.
^ttAlso at Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Bologna, Italy.
^uuAlso at Centro Siciliano di Fisica Nucleare e di Struttura della Materia, Catania, Italy.
^vvAlso at James Madison University, Harrisonburg, Virginia, USA.
^wwAlso at Università degli Studi Guglielmo Marconi, Roma, Italy.
^xxAlso at Scuola Superiore Meridionale, Università di Napoli ’Federico II’, Napoli, Italy.
^yyAlso at Fermi National Accelerator Laboratory, Batavia, Illinois, USA.
^zzAlso at Laboratori Nazionali di Legnaro dell’INFN, Legnaro, Italy.
^aaaAlso at Lulea University of Technology, Lulea, Sweden.
^bbbAlso at Consiglio Nazionale delle Ricerche—Istituto Officina dei Materiali, Perugia, Italy.
^cccAlso at UPES—University of Petroleum and Energy Studies, Dehradun, India.
^dddAlso at Institut de Physique des 2 Infinis de Lyon (IP2I), Villeurbanne, France.
^eeeAlso at Department of Applied Physics, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi, Malaysia.
^fffAlso at Trincomalee Campus, Eastern University, Sri Lanka, Nilaveli, Sri Lanka.
^gggAlso at Saegis Campus, Nugegoda, Sri Lanka.
^hhhAlso at Universität Zürich, Zurich, Switzerland.
ⁱⁱⁱAlso at Stefan Meyer Institute for Subatomic Physics (SMI), Vienna, Austria.
^jjjAlso at Near East University, Research Center of Experimental Health Science, Mersin, Türkiye.
^kkkAlso at Konya Technical University, Konya, Türkiye.
^lllAlso at Istanbul Topkapi University, Istanbul, Türkiye.
^mmmAlso at Izmir Bakircay University Faculty of Engineering and Architecture, Izmir, Türkiye.
ⁿⁿⁿAlso at Adiyaman University, Adiyaman, Türkiye.
^oooAlso at Bozok Universitetesi Rektörlügü, Yozgat, Türkiye.
^pppAlso at Istanbul Sabahattin Zaim University, Istanbul, Türkiye.
^qqqAlso at Marmara University, Istanbul, Türkiye.
^rrrAlso at Milli Savunma University, Naval Academy, Istanbul, Türkiye.
^sssAlso at The Science and Technological research Council of Türkiye, Informatics and Information Security Research Center, Gebze/Kocaeli, Türkiye.
^tttAlso at Kafkas University, Kars, Türkiye.
^uuuAlso at Istanbul Okan University, Istanbul, Türkiye.
^vvvAlso at Istanbul University—Cerrahpasa, Faculty of Engineering, Istanbul, Türkiye.
^wwwAlso at Istinye University, Istanbul, Türkiye.
^xxxAlso at School of Physics and Astronomy, University of Southampton, Southampton, United Kingdom.
^yyyAlso at Monash University, Faculty of Science, Clayton, Australia.
^zzzAlso at Università di Torino, Torino, Italy.
^aaaaAlso at California Lutheran University, Thousand Oaks, California, USA.
^bbbbAlso at California Institute of Technology, Pasadena, California, USA.
^ccccAlso at United States Naval Academy—Physics Department, Annapolis, Maryland, USA.
^ddddAlso at Another institute formerly covered by a cooperation agreement with CERN.
^eeeeAlso at Bingol University, Bingol, Türkiye.
^ffffAlso at Georgian Technical University, Tbilisi, Georgia.
^ggggAlso at Sinop University, Sinop, Türkiye.
^hhhhAlso at Erciyes University, Kayseri, Türkiye.
ⁱⁱⁱⁱAlso at Horia Hulubei National Institute of Physics and Nuclear Engineering (IFIN-HH), Bucharest, Romania.
^jjjjAlso at University of California, Irvine.
^kkkkAlso at Karamanoğlu Mehmetbey University, Karaman, Türkiye.
^llllAlso at Hamad Bin Khalifa University (HBKU), Doha, Qatar.
^mmmmAlso at Yerevan Physics Institute, Yerevan, Armenia.
ⁿⁿⁿⁿAlso at Imperial College, London, United Kingdom.

PDF

Phys. Rev. Lett. 137, 191902 – Published 3 November, 2026

DOI: https://doi.org/10.1103/dv54-jq8p

Abstract

A first observation of the rare decay $η \to μ^{+} μ^{-} e^{+} e^{-}$ is reported by the CMS Collaboration at the CERN LHC. The result is based on a proton-proton collision data sample at $\sqrt{s} = 13.6 TeV$ corresponding to an integrated luminosity of $38.0 {fb}^{- 1}$ , acquired in 2022 using a high-rate dimuon trigger. Using the $η \to μ^{+} μ^{-} γ$ decay channel for normalization, the branching fraction is measured to be $B (η \to μ^{+} μ^{-} e^{+} e^{-}) = (2.4 \pm 0.8) \times 10^{- 6}$ , with the uncertainty including statistical and systematic sources as well as the $B (η \to μ^{+} μ^{-} γ)$ uncertainty. This result is about a factor of 3 smaller than the existing limit and is consistent with recent theoretical predictions.

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References (41)

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Phys. Rev. Lett. 137, 191902– Published 3 November, 2026

Vol. 137, Iss. 19 — 6 November 2026

Received 1 May 2026
Revised 29 July 2026
Accepted 11 September 2026

DOI: https://doi.org/10.1103/dv54-jq8p

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP³.

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Observation of the Rare Decay $η \to μ^{+} μ^{-} e^{+} e^{-}$