Search for light bosons in decays of the 125 GeV Higgs boson in proton-proton collisions at sqrt{s}=8 TeV

V Khachatryan,A Rane,A Panagiotou,K Rose,P Goldenzweig,T Reis,M Baber,S Jabeen,A Elliott-Peisert,M M Baarmand,M Guthoff,K Burkett,S Mrenna,Y Musienko,M Herndon,P Jež ,C Snyder,S Sánchez Cruz ,C Asawatangtrakuldee,S Shalhout,S Hagopian,D Cussans,I Pozdnyakov,J P Gomez,N Odell,P Azzurri,P Mcbride,A Lee,M Kovac,M R Adams,M Wolf,A Kalogeropoulos,J M Hogan,R Chudasama,A Triossi,L Scodellaro,R Janjam,C Rovelli,S Dey,M Girone,J Goh,E Auffray,S Keshri,C Autermann,J Hardenbrook,D Hidas,A Stahl,P Depasse,Y F Liu,A Mohammadi,K A Ulmer,P Bargassa,V Kim,S Polikarpov,A Rosowsky,B Ujvári ,G Masetti,S Durgut,A Zghiche,G Flügge,F Meier,U Sarica,M Fernández ,S Beauceron,S Bitioukov,A Di Mattia,T Williams,T Peiffer,S Bein,V Karimäki,A Leonidov,M Centis Vignali,D Sperka,J Schieck,A Rácz ,B Asavapibhop,K Stenson,R Magaña Villalba,J Talvitie,J R Patterson,T Šuša ,B P Padley,R Yonamine,V Reković ,T Lenz,B Parida,D M Raymond,C Hill,H R Hoorani,H Weber,F Pantaleo,M Turner,P Traczyk,P Salvini,J Rohlf,K Jung,M Vutova,A Degano,M Malberti,C Beirão Da Cruz E Silva,Supratik Mukhopadhyay ,B Stieger,M Ahmad,C Amsler,W Johns,V E Blinov ,A Bean,G Bagliesi,B Calvert,D Leggat,J A Gomez,A Kharchilava,R Patel,F Palla,V Ciulli,J Jacob,C Wöhrmann,Н Голубев ,T Sakuma,A Dermenev,S Thakur,P Sphicas,A Zagoździńska ,Simon Fink ,M Niedziela,O R Long,S Narayanan,G Hall,J G Bian,M Choi,A Modak,P Kurt,R Castello,R Y Zhu,D Gastler,S Carrillo Moreno,M Dobson,S Sanders,L Chtchipounov,I A Cali,D Sabes,L Brito,S Tuo,G Bruno,J Pela,R Rusack,Yu I Skovpen ,N Wardle,C Lucas,E Asilar,A Zabi,A Albert,K Mandal,Y Chen,G Miniello,M Arneodo,L Cadamuro,P Zotto,C A Carrillo Montoya,A C Marini,A Lelek,C Anelli,V Sola,D Trocino,A Korytov,M Voutilainen,J Damgov,F Xia,S Fartoukh,J Ellison,G Boudoul,F Ptochos,R Potenza,M Erdmann,S Braibant-Giacomelli,M Grothe,Q Python,T Lindén,N Ruckstuhl,G Garcı́a ,A De Cosa,S Chauhan,Young-Il Choi ,J Goldstein,P Gunnellini,S Cihangir,N De Filippis,G Majumder,M Zanetti,S Baur,P Govoni,I Puljak,L Ristori,R Bi,M N Yusli,B Francis,A Makovec,M Waqas,V Perelygin,C Collard,R Kogler,W Erdmann,R Gerosa,A Giammanco,A A Bin Anuar,W Ko,A Carvalho Antunes De Oliveira,S Bansal,J Fernández Menéndez ,D Rankin,W Luo,A Gribushin,A Lopez Virto,R Ruchti,J P Chou,J Leonard,C Diez Pardos,P G Mercadante,F Hartmann,J Flix,S Dogra,A Gozzelino,G Fasanella,S Kyriacou,H Rykaczewski,Y D Oh,A Nikitenko,D Acosta,B Ille,V Khristenko,I Vila,S K Swain,K Mazumdar,P Sheldon,S H Seo,M Franco Sevilla,A Santocchia,Deepak Kumar Sahoo ,V Hagopian,B Pollack,L Malgeri,A Bornheim,H Jung,A T Meneguzzo,I Marchesini,N Demaria,D Klein,R Venditti,W Funk,N Amapane,E Halkiadakis,A Jafari,G Smith,I Kucher,V O’Dell,J.-C Fontaine,C Grab,R Gonzalez Suarez,A Petrilli,T Ruggles,M W Arenton,Y Iiyama,J Lauwers,D Pinna,E Yazgan,V Sordini,N Tosi,D D’Enterria,A Apyan,C Bruner,A Garabedian,N Cavallo,L Perrozzi,R Hirosky,A Van Spilbeeck,Jimin George ,V Bunichev,R Stringer,M Walker,W Clarida,J Seixas,K Lassila-Perini,M Gardner,C Welke,J Chu,N Magini,T Järvinen,G G Da Silveira,A C Benvenuti,A Mott,E Locci,M Sharan,K Beernaert,S P Ratti,Sandra S Padula,Piero Giorgio Verdini ,M Szleper,H Sakulin,D Loukas,A Ahmad,N Colino,K Androsov,Alexey Finkel ,F Meng,J Wang,A Kubik,P Lariccia,S Schumann,A Popov,N Mccoll,R Castaldi,S Beranek,S Paramesvaran,M Endres,R Dell’Orso,D Konstantinov,N Lychkovskaya,C Zorbilmez,A Borzou,P C Bhat,R Plačakytė ,P Eerola,B Safarzadeh,Kristan Allan Hahn ,S Gninenko,J A Brochero Cifuentes,M Alyari,S Thomas,K Shchelina,Y Onel,M Cipriani,X Niu,M Citron,D Lelas,M Górski,J Russ,J Dittmann,S Wang,C Galloni,D Ferenček ,O Baron,M Rovere,M Krammer,A Cimmino,A De Roeck,P Meridiani,A Mehta,A Çelik ,A Raspereza,Saša Mićanović ,E Laird,S Donato,L Teodorescu,M E Pol,R Bainbridge,K Matchev,G Sultanov,S Alderweireldt,R Mueller,D Dobur,C Caputo,D Haitz,S Goy Lopez,V Dūdėnas ,K F Chen,H B Newman,S Dutta,L Mastrolorenzo,J Królikowski ,Y Wang,V Blobel,V Krutelyov,G Safronov,L Bianchini,T Peltola,P Paolucci,N Shumeiko,T Lapsien,A Skuja,M A Shah,I Suárez Andrés,C Ávila ,K Lee,N Kovalchuk,M I Josa,A Grebenyuk,J Hauser,D Gyun,M Barrio Luna,A Apresyan,C Sander,C Dozen,E Eskandari Tadavani,A.-C Le Bihan,O Driga,T Roy,A Olbrechts,A K Mohanty,S Maruyama,N Sahoo,T Frueboes,U Gasparini,T Schöerner-Sadenius ,S Mitra,J Hrubec,S Troshin,A Léonard,B Clerbaux,J Richman,Sa Jain,H Mei,K Maeshima,A Radi,G Abbiendi,R Breedon,J.-L Agram,P R Dudero,R D Field,А Александров ,F Chlebana,S Choudhury,Anne-Laure Pequegnot ,S Costa,D Abbaneo,S Perriès ,A M Sirunyan,M Missiroli,A Castro,J Keaveney,Q Ingram,M Kazana,R Vidal,K H M Kwok,T Adams,Arun Kumar,N Woods,J R Gonźalez Ferńandez ,R Lander,M Gul,K Harder,R Clare,J Duarte,D De Jesus Damiao,S Ganjour,B Kreis,F Zhang,J Bowen,C Bernet,A Al-Bataineh,J Cuevas,N Cartiglia,A Whitbeck,M Jones,S Đurić ,A Ranieri,E Spencer,E Berry,O Gutsche,V Lemaı̂tre ,E W Vaandering,N Filipović ,T Liu,K Buńkowski ,J C Sanabria,S Wasserbaech,F Würthwein,R Friese,M Naimuddin,K Krajczár ,J Heideman,L Gutay,D Velicanu,M Savina,S Gascon,Y H Chang,M I Paneva,D Lange,M Cepeda,T H Doan,D Piccolo,A Sznajder,R G Kellogg,V Palichik,J Wright,Z Wu,A Marinov,J Hegeman,S Orfanelli,L Sonnenschein,M Verweij,D Abercrombie,M Osherson,P Dauncey,L Lyons,S Harper,B Roland,J A Merlin,A Carnes,R Bhattacharya,J Alcaraz Maestre,C Mora Herrera,A Khukhunaishvili,M Konyushikhin,M De Mattia,S Roy Chowdhury,P Adžić ,D Winn,J Bunn,C H Shepherd‐Themistocleous ,R Horisberger,A Massironi,Sanjeev Kumar ,V Savrin,E Longo,A Vilela Pereira,M Albrow,V Zhukova,G Singh,D Blöch ,J Olsen,L M Pant,R Klanner,I Antropov,A Baskakov,G Mäggi ,P Maksimović ,M Gallinaro,F Giordano,Anna Julia Zsigmond ,A Heister,C Nuttens,D Denegri,D Vadruccio,V Daponte,A Braghieri,Andres Hugo Melo ,S Toda,M Quittnat,T Dorigo,A Caudron,S Bhowmik,G M Dallavalle,H Nogima,A Richards,R Lucas,P D Luckey,Y J Lee ,M Pesaresi,В Качанов ,J E Cole,M Velasco,N Kellams,M Friedl,M Kadastik,C Heidemann,E Takasugi,P H Chen,G Landsberg,M Shoaib,J Wetzel,J Puerta Pelayo,C Jessop,B Penning,S Taroni,D R Claes,C You,F Primavera,W H Smith,A Thea,A Dierlamm,D Salerno,P De Barbaro,S De Visscher,B Lee,A Karneyeu,T Strebler,D Marconi,A.-M Magnan,А Спиридонов ,F Ferri,P Chang,K M Ecklund,M Kaya,S Lee,E J Tonelli Manganote,T Aziz,P Connor,M Jeitler,M Zeyrek,P K Behera,R Bellan,B Dorney,S C Kao,T James,C Oropeza Barrera,S Pandey,E Di Marco,R Carlin,J W Gary,D C Son,M Misiura,V Andreev,L Martini,V Sharma,A Kapoor,M D’Alfonso,T Weiler,G L Pinna Angioni,J Yoo,A Rinkevičius ,M Flechl,Yu Andreev,N Nishu,L Beck,H Brun,S Obraztsov,G Perrin,J Kunkle,J Hauk,O Jesus,T Sculac,D Duchardt,J Nachtman,R Hughes,I Glushkov,D Futyan,M Lipiński ,M Grünewald ,D Matos Figueiredo,S My,I Katkov,J Dolen,D Berry,A Sharma,C Seez,D Menasce,E Kuznetsova,M Verzetti,O Charaf,G P Van Onsem,E Calvo,J Han,I Miagkov,H Mildner,C Wissing,E C Chabert,L Dudko,J Andreä ,P Kokkas,G Mantovani,S Bilmis,T Arndt,S Dasu,X Janssen,S Dutt,L Wendland,J G Branson,K Doroba,T Pook,C George,L Moreels,J Kaisen,Z Wang,T Verlage,K Ranjan,L Mirabito,S Dubé ,M Nguyen,L Pacher,M R Monge,J Mc Donald,M Cuffiani,S Folgueras,N Tyurin,G Gökbulut ,S Paktinat Mehdiabadi,J Suarez Gonzalez,L Pape,A Schmidt,P Schleper,L Brianza,I Golutvin,D Petyt,R P Gandrajula,J Pazzini,G P Siroli,A Montanari,A Hortiangtham,Mauro Emanuele Dinardo ,U Behrens,G Önengüt ,S Baffioni,E Bouvier,R Bhandari,R López-Fernández ,F Wang,P Ma,A Adair,J S H Lee,A Ruiz-Jimeno,M Mooney,I Azhgirey,M Raidal,S Petrushanko,K Romanowska-Rybinska,D Eckstein,H Li,A Savin,P Lecoq,J Lim,B De La Cruz,D Leslie,S Malik,M Rossini,D Wang,J Mans,David Romero Abad ,Tao Huang ,C Uribe Estrada,P G Ferreira Parracho,A Perloff,C Mcginn,S Knutzen,S Shmatov,P Avery,L Alunni Solestizi,G Pugliese,G Tonelli,F Romeo,S Thüer,P Faccioli,L Finco,S Spannagel,G M Bilei,A Ovcharova,N Saoulidou,C De Oliveira Martins,D Tlisov,V Karjavin,A Psallidas,S I Cooper,W Lange,S K Park,I Hoş ,I Redondo,A R Draeger,R R Betts,A Rizzi,R Radogna,F Meijers,K Sumorok,E E Kangal,F Moortgat,D Poyraz,C Mironov,S Nandan,G Iles,H Neugebauer,C Hensel,A Reinsvold,Y Pakhotin,K Lannon,B Fabbro,R B Garg,D Marlow,D Nowatschin,C Hwang,B Freund,B Pavlov,E Olaiya,P Busson,E Brondolin,V Klyukhin,G Selvaggi,Z S Demiroglu,J Monroy,G Daskalakis,M Wang,R Caspart,U Langenegger,W Li,J Alexander,T Tabarelli De Fatis,S Gelli,Ashok Kumar,J Rorie,H W Wulsin,S J Qian,V Krychkine,S Kunori,I Ahmed,P Piroué,V Oreshkin,C Vander Velde,P Martinez Ruiz Del Arbol,A Boletti,R Chistov,E Barberis,J Chaves,T Virdee,M Cremonesi,K Call,D J A Cockerill,H W K Cheung,D Majumder,S Ganguly,G Vesztergombi,D Sunar Cerci,C West,D Rabady,M Heindl,F Rebassoo,M Rodozov,C Harrington,N Wickramage,V A Giakoumopoulou,I C Park,F Blekman,T Dreyer,S Ghosh,C Lange,P Baringer,R Syarif,A Meyer,G Lanza,L Lloret Iglesias,B Mesic,T Rodrigo,J Faulkner,R Lane,Y Kubota,S Stoynev,M Derdzinski,D Zou,P Lenzi,R Yohay,B Boimska,K Cankoçak ,J Sturdy,L Kreczko,P Vanlaer,T Toriashvili,M Chen,I Korol,E Contreras-Campana,Wan Ahmad Tajuddin Wan Abdullah ,J Brandstetter,A Beretvas,G Polese,C Palmer,T Boccali,G M Chen,C Veelken,N J Hadley,W.-S Hou,M Dünser,T Rovelli,T Geralis,C Charlot,T Hreus,D Ćutts ,K Bierwagen,C Oʼbrien ,M Tosi,C Mclean,Maria Margherita Obertino ,P Zalewski,M Maggi,C Ochando,P Symonds,M Chamizo Llatas,Y S Lai,S Fonseca De Souza,N Rad,M Foerster,K Bloom,A Rýd ,R Barbieri,B Courbon,P Shukla,R Cousins,T Matsushita,A Svyatkovskiy,R Sharma,M Pierini,M Giffels,J Luo,V Matveev,N Varelas,G Sguazzoni,M T Meinhard,I K Furic,R Eusebi,E Butz,D Pitzl,Y Ban,A Perieanu,E M Da Costa,S Marcellini,A Terkulov,D Burns,A Fagot,R Di Maria,S B Beri,T Rohe,M Zientek,T Mulholland,M Kirakosyan,E Meschi,M Pelliccioni,M Lethuillier,J D’Hondt,A Bylinkin,V Valuev,K Mei,H Ni,X Shi,R Fischer,A Tapper,U K Yang,G Auzinger,P Azzi,M Ruspa,J M Grados Luyando,H Mermerkaya,T Hebbeker,M B Andrews,F Margaroli,P Van Hove,C Peña ,B L Winer,N Manthos,N Leonardo,M Khakzad,P Kumari,R M Harris,T J Kim,G Gomez Ceballos,K Höepfner ,P A Razis,M Donegà,P Garcı́a-Abia ,N Eminizer,G Sieber,L Corpe,N Skatchkov,H D Yoo,A Bocci,B Francois,K Yi,R M Brown,F Pauß ,M Oglakci,M Azarkin,A Mestvirishvili,W Waltenberger,G R Snow,K Lamichhane,P Kyberd,M Kaur,A Gurrola,J Zabel,N Pastika,N Beliy,T Ševa ,S Schnetzer,M Dittmar,M Déjardin ,D Treille,J Stupak,A Topkar,J Zhao,M Seidel,M Maity,Manqi Ruan ,B Cox,C Hartl,O Buchmüller ,P De Castro Manzano,S Lowette,E Migliore,Q Hassan,L Forthomme,S Tosi,G De Nardo,Z Demiragli,P Hebda,Z Tao,Y Güler ,A Nowack,Y H Shin,S Padhi,N Tambe,A Morelos Pineda,Thea Klaeboe Aarrestad ,C Wang,D Contardo,K Dilsiz,Y C Yang,S Kudella,Р Тенчини ,C Dietz,L Brigliadori,B Betchart,D Cieri,R Aggleton,N Chanon,F Ball,G Roland,A Giassi,G Funk,N Strobbe,R Kamalieddin,Jui-Fa Tsai ,M Dall’Osso,M Buttignol,P Bloch,M De Palma,P Milenović ,G B Cerati,D Creanza,L A T Bauerdick,N Loukas,A Starodumov,F Mohamad Idris,B Marzocchi,A Sánchez-Hernández ,K Kadija,G Walia,S Röcker,A Romero,A Perrotta,A G Delannoy,J Luetic,L Fanò,M Wayne,F Lagarde,S Tavernier,P Markowitz,S Fiorendi,S Colafranceschi,S Maselli,A Penzo,M Bluj,G Flouris,D Krofcheck,M Hoffmann,S C Eno,M Murray,N Majumdar,A David,N Voytishin,S M A Ghiasi Shirazi,A Rose,C Baus,M Olszewski,K F Johnson,F Siklér ,A Custódio,H Stadie,A Khan,V Veckalns,S Nahn,H Reithler,S Kesisoglou,B Diamond,A C Mignerey,D Arcaro,M S Soares,C Flores,U Dosselli,H Tholen,E A De Wolf,I B Laktineh,T Tuuva,G Steinbrück,C Scharf,D Green,A Santra,E A Yetkin,N Sur,A Uzunian,A Abdulsalam,P Harris,А Калинин ,S Abu Zeid,D Nash,M T Lucchini,F Simonetto,R M Chatterjee,P Silva,S Bianco,R P Kenny,C F Gonźalez Herńandez ,S Cho,R Salerno,R Wolf,J Berger,M Chertok,D Moran,J A Coughlan,P Everaerts,H Oğul ,M Dubinin,F Couderc,S Pigazzini,R K Dewanjee,S Choi,M Goncharov,A Ivanov,F Jensen,M Sani,J.-P Merlo,A Hart,V Hegde,E Palencia Cortezón ,M Masciovecchio,H A Salazar Ibarguen,E Paradas,E Navarro De Martino,R Conway,G Barbagli,E Sexton-Kennedy,P E Karchin,S C Tonwar,E M Gregores,M T Grippo,C B Martin ,D M Newbold,I Bayshev,L Silvestris,P Robmann,S Abdullin,K Skovpen,W Lin,B Calpas,I Ojalvo,W L Prado Da Silva,P Lecomte,C Beluffi,L Bäni,N Mucia,D Burton,B Liu,Q Wang,A Kaur,S Girgis,J Roskes,H S Chen,J Vaitkus,C Laner,S Chenarani,L Calligaris,G Franzoni,R Erbacher,C Mariotti,M Mittal,C Fernandez Bedoya,M K Kiesel,P Baillon,A Dimitrov,F Ferro,K H Lo,F Raupach,F Yumiceva,S Somalwar,A Magitteri,C Paus,W Xie,E Hughes,R Schöfbeck,S Nourbakhsh,A Givernaud,S Di Guida,C Richardson,H J Simonis,S Cooperstein,C Biino,M Olschewski,K Hatakeyama,P Gras,C Tuvé ,S Ahuja,L Perniè,J P Fernández Ramos,Z Zolkapli,O Kodolova,L Gauthier,N Suwonjandee,A Campbell,F Nessi‐Tedaldi ,I Khvastunov,I D Reid,A Bundock,S Albergo,T Maerschalk,A Ackert,V Bhatnagar,P Barria,N Smith,J Schwandt,C H Jiang,U Joshi,Zainol Abidin Ibrahim ,A Baty,R Démina ,E Gurpinar,F Beaudette,M Naseri,G Davies,A Fanfani,Y T Duh,P Thomassen,B C Choudhary,J Poehlsen,D Duggan,R Ulrich,D Smith,W L Aldá Júnior,T Bose,M Schröder,N Béni ,L Litov,F Cossutti,D Hare,Y Roh,M Preuten,M Titov,D Bisello,R Chawla,J B Sauvan,V Zykunov,G Benelli,A Gizhko,J Molnár ,H Wei,S C Zenz,W Van Doninck,C Battilana,J.-M Brom,M Toms,E Avdeeva,M Klute,M Mulders,J L Faure,P Paganini,T Kolberg,F Matorras,J Lee,K Gill,F Thyssen,Z Lesko,W De Boer,F Glege,M Yang,M Konecki,G I Veres,M Aldaya Martin,M Jo,B Bilki,L Mundim,F Canelli ,A Ellithi Kamel,E Dietz-Laursonn,D Tsiakkouri,V Brigljević ,M Hempel,L Soffi,R Harr,I Bucinskaite,W Mcbrayer,Benjamin Charles Radburn-Smith ,F Golf,D Mason,V Kumar,N Neumeister,R Goldouzian,M Verzocchi,R Kinnunen,R Walsh,M Stöver,M Mannelli,S Boren,M Guchait,M Brodski,D Hits,E Eren,A Moraes,S Flowers,V Cherepanov,F Ravera,Y Maravin,C Campagnari,A Nayak,Z Hu,L Apanasevich,C Grandi,P Ronchese,S Summers,M Lo Vetere,A Fahim,J D Ruiz Alvarez,A Askew,I Mikulec,D Roy,D Del Re,M Meyer,A Staiano,G Karapostoli,S Çerçi ,S Buontempo,Y Yang,J Piedra Gomez,D Ciangottini,S Rahatlou,J Garay Garcia,F Cenna,C Caillol,A Lath,C Contreras-Campana,A Zuranski,S Salur,C Barth,F Bachmair,Stefan Michael Heindl ,O Dvornikov,F Ricci-Tam,A Lanaro,H Wang,A Florent,A Künsken,J Turkewitz,V Re,J Velkovska,K Thapa,J Marco,G Nicolas Kaufman,N Pozzobon,L Gray,S Khalil,L M Huertas Guativa,H Saka,P Wittich,M A B Md Ali,L Spiegel,M Gouzevitch,Feng Liu ,R Khurana,A Pfeiffer,M Northup,J Tuominiemi,C Delaere,P Vischia,Z Szillási ,S Meola,S M Spanier ,M Kasemann,C Maguire,L Uplegger,N V Tran,P Merkel,A Saha,L Barone,S Shulha,J Mejia Guisao,K Long,M Dragicevic,G Kasieczka,M Zeinali,P Spagnolo,E Usai,S Banerjee,B Hong,I Vorobiev,A Junkes,C Riccardi,S Gadrat,M Haytmyradov,A Pompili,G Eckerlin,P T Cox,D Sheffield,P Klabbers,Z Mao,P Tan,P Verdier,J P Cumalat,V Petrov,P Jandir,A Spiezia,N Van Remortel,S Sarkar,J Rodrigues Antunes,I Suarez,M Costa,V M Ghete,A Yagil,J Conway,Wolfram Dietrich Zeuner ,O Karacheban,M Ignatenko,M S Kim,W Carvalho,O Pooth,V Candelise,S Morovic,M Komm,F M Stober,K Nawrocki,Joaquin Emilo Siado ,J N Butler,G P Heath,John Michael Marraffino ,W Busza,P Raics,C Foudas,S Belforte,В Макаренко ,D Saltzberg,N Daci,A Ledovskoy,T Yetkin,H Van Haevermaet,B Sutar,S Linn,R Chierici,J Hammer,U Bhawandeep,J Fulcher,P Cirkovic,M Abbrescia,A Pérez-Calero Yzquierdo,M Trovato,A Dishaw,I R Tomalin,M Cerrada,J Mousa,J R Komaragiri,J Yelton,F De Guio,L Levchuk,C Schomakers,B Kargoll,D Teyssier,F R Cavallo,Q Li,S Dittmer,Y Gershtein,S Paoletti,M Plagge,J Gran,V Smirnov,H Kirschenmann,I Gorbunov,A Bonato,T W Wang,A Zhokin,P Jarry,E Garutti,J Fay,T Medvedeva,F Özok ,M Kirsanov,N Bartosik,D Elumakhov,U Goerlach,J Kieseler,D Puigh,L Sulak,C S Moon,M A Ciocci,U Heintz,M Kröhn ,P Van Mechelen,D Dutta,J M Hernández ,A Adıgüzel ,A Belyaev,T Cornelis,G Codispoti,K Lipka,E De La Cruz-Burelo,G Karapinar,J Hollar,M Vazquez Acosta,T Lampén,P Luukka,F Ligabue,T R Fernandez Perez Tomei,Yongjie Xin ,K Pedro,G Martı́nez ,S Casasso,G Dissertori,E Gülmez,L F Chaparro Sierra,S Gennai,N Dupont,E Ntomari,M C Fouz,P Montagna,W J Spalding,M A Mahmoud,D Pedrini,J Lingemann,D Stolp,J J Brooke,S Bahinipati,P Pigard,V Bhopatkar,V Calvelli,S Malhotra,A Zucchetta,D Gigi,M Stoye,Z Chen,P K Netrakanti,J W Smith ,E Tuovinen,A Soha,J Goodell,L Moroni,O Kaya,V Dutta,A Tumasyan,J Nash,S Sharma,A Bhardwaj,D Gelé,G N Kim,B Roozbahani,V Azzolini,O Hindrichs,Y Yilmaz,B Işıldak ,M Narain,W T Ford,Andy Parker ,W Lustermann,A Randle-Conde,P Mal,J Königsberg ,Marco Esposito ,G Hanson,J F De Trocóniz,S Kalafut,V Mossolov,L Quertenmont,R Ryutin,S R Wagner,D Gulhan,H Bakhshiansohi,G Kole,J Hakala,S Ha,F Gasparini,M Grimes,R Covarelli,I Krätschmer,É Chapon ,C Lourenço,N Parashar,J Härkönen,D Rank,D A Belknap,E Pérez ,J B Singh,P Petkov,S Wayand,M Marionneau,R Kunnawalkam Elayavalli,M Bartók,O Bondu,S Bhattacharya,S Regnard,R Arcidiacono,A Brinkerhoff,G Quast,T Lenzi,D Vannerom,T Sinthuprasith,A Quintario Olmeda,T Eichhorn,A Vanhoefer,M Besançon ,J Almond,М Фингер ,G De Lentdecker,T Perry,A Shrinivas,A Calderón ,J Kim,I D Sandoval Gonzalez,C Vernieri,G Breto,N Mirman,K Padeken,A K Kalsi,M Menichelli,A Escalante Del Valle,S Ragazzi,R Redjimi,Ž Antunović ,A Savoy-Navarro ,M Yalvac,M Gavrilenko,G B Yu,A Safonov,S Gundacker,N Pastrone,J Salfeld-Nebgen,A Venturi,G Riley,V D Elvira,M Johnson,A Dabrowski,N Trevisani,M Paganoni,A Khatiwada,J Tao,S Viret,A Kyriakis,E Boos,D Bonacorsi,C Tully,E Gallo,A Hinzmann,B Vormwald,J Heilman,S Schael,S F Novaes,T Chwalek,M De Gruttola,W A Khan,A Levin,Riccardo Andrea Manzoni ,M Paulini,P Saxena,S Piperov,S S Yu,M Zakaria,L K Saini,M Schönenberger,K Chatterjee,E Tiras,T Kamon,K Sung,N Zaganidis,Giuseppe Antonio Pierro ,E Monteil,S Czellár ,P Elmer,U Kiminsu,J M Vizan Garcia,Lu R S ,P Checchia,S Simon,T Ferbel,S Das,J Garcia-Ferrero,M K Jha,K Burt,A Roy,A Zarubin,J Haller,C Bravo,G Dolinska,A Mussgiller,D Wood,S Wimpenny,Gian Michele Innocenti ,L Romero,E Robutti,L Perrini,W Van Driessche,V Popov,S Sen,H Delannoy,A Dasgupta,J Linacre,F Rezaei Hosseinabadi,M U Mozer,Y Wu,V J Smith,J Mnich,A Nehrkorn,L Caminada,J Veverka,F Lacroix,R J Wang ,P Miné,Z Tsamalaidze,R Hadjiiska,H El Mamouni,V E Barnes,L Favart,Michael Henry Schmitt ,I Topsis-Giotis,C Neu,J Hoß ,L Gouskos,John F Gunion ,N Stefaniuk,G Zevi Della Porta,B Kilminster,R Lipton,G Gómez ,A Ostapchuk,O Davignon,G Iaselli,A Messineo,A Tricomi,S Xie,D Anderson,Peter Hansen ,S Kaplan,N Dev,J F Low,G Fedi,M Rieger,Z Liu,D Kotliński ,S Brochet,A Santoro,M Miñano Moya,D Bourilkov,E Vlasov,M J Kortelainen,G Grenier,M V Nemallapudi,A Güth,D Olivito,A Harb,H Flächer ,I Kravchenko,L Viliani,K Uchida,B Gomber,J Steggemann,I S Zorbakir,A Elwood,P Turner,J Varela,T Esch,G Zumerle,Simranjit Singh Chhibra ,W Fang,P Millet,B Kiani,J Ngadiuba,D Meister,G Apollinari,M Guilbaud,J Erö,L Felď ,B Blumenfeld,N Amin,H Qu,J Malclès ,K Theofilatos,L Lista,I Shvetsov,P Janot,K Kaadze,I Lokhtin,R D’Alessandro,A Purohit,J Bernardini,Y J Lu,A Poll,I.-A Melzer-Pellmann,R Leonardi,F Vazquez Valencia,R Wallny,M Pieri,S Turkcapar,F Cavallari,J L 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Fangmeier,S Lacaprara,P Rumerio,F Santanastasio

doi:10.1007/jhep10(2017)076

Abstract

A search is presented for decays beyond the standard model of the 125 GeV Higgs bosons to a pair of light bosons, based on models with extended scalar sectors. Light boson masses between 5 and 62.5 GeV are probed in final states containing four τ leptons, two muons and two b quarks, or two muons and two τ leptons. The results are from data in proton-proton collisions corresponding to an integrated luminosity of 19.7 fb−1, accumulated by the CMS experiment at the LHC at a center-of-mass energy of 8 TeV. No evidence for such exotic decays is found in the data. Upper limits are set on the product of the cross section and branching fraction for several signal processes. The results are also compared to predictions of two-Higgs-doublet models, including those with an additional scalar singlet.

Highlights

A search is presented for decays beyond the standard model of the 125 GeV Higgs bosons to a pair of light bosons, based on models with extended scalar sectors
Bosons, other than that the scalar sector is composed only of doublets and singlets, the ATLAS and CMS collaborations at the CERN LHC exclude at a 95% confidence level (CL) branching fractions of the Higgs boson to beyond SM (BSM) particles, B(h → BSM), greater than 49% and 52%, respectively [5, 6]
Examples of BSM models that provide such additional decay modes include those in which the Higgs boson serves as a portal to hidden-sector particles that can couple to SM gauge bosons and fermions [16]

Summary

Event selection

Events are selected using a double muon trigger relying on the presence of a muon with pT > 17 GeV and another one with pT > 8 GeV. To reconstruct the dimuon pair from the a → μ+μ− decay, two isolated muons of opposite charge, pT > 5 GeV, and |η| < 2.4 are selected. If there are more than two muons in the final state, the highest-pT muon is required to pass a pT threshold of 18 GeV, and is considered as arising from the prompt decay of the light boson. It is paired with the highest-pT muon of opposite charge. The signal efficiency of this selection criterion is high since the four lepton invariant mass in μ+μ−τe+τe− events is significantly reduced due to the presence of neutrinos in τ lepton decays. Only events with a reconstructed dimuon mass between 14 and 66 GeV are considered in the study

Signal and background estimation

Systematic uncertainties

Systematic uncertainties common to all analyses

Results

Summary