Observation of [Formula: see text] and [Formula: see text] decays

R Aaij; B Adeva; M Adinolfi; Z Ajaltouni; S Akar; J Albrecht; F Alessio; M Alexander; S Ali; G Alkhazov; P Alvarez Cartelle; A A Alves Jr; S Amato; S Amerio; Y Amhis; L An; L Anderlini; G Andreassi; M Andreotti; J E Andrews; R B Appleby; F Archilli; P d'Argent; J Arnau Romeu; A Artamonov; M Artuso; E Aslanides; G Auriemma; M Baalouch; I Babuschkin; S Bachmann; J J Back; A Badalov; C Baesso; S Baker; W Baldini; R J Barlow; C Barschel; S Barsuk; W Barter; M Baszczyk; V Batozskaya; B Batsukh; V Battista; A Bay; L Beaucourt; J Beddow; F Bedeschi; I Bediaga; L J Bel; V Bellee; N Belloli; K Belous; I Belyaev; E Ben-Haim; G Bencivenni; S Benson; J Benton; A Berezhnoy; R Bernet; A Bertolin; C Betancourt; F Betti; M-O Bettler; M van Beuzekom; Ia Bezshyiko; S Bifani; P Billoir; T Bird; A Birnkraut; A Bitadze; A Bizzeti; T Blake; F Blanc; J Blouw; S Blusk; V Bocci; T Boettcher; A Bondar; N Bondar; W Bonivento; I Bordyuzhin; A Borgheresi; S Borghi; M Borisyak; M Borsato; F Bossu; M Boubdir; T J V Bowcock; E Bowen; C Bozzi; S Braun; M Britsch; T Britton; J Brodzicka; E Buchanan; C Burr; A Bursche; J Buytaert; S Cadeddu; R Calabrese; M Calvi; M Calvo Gomez; A Camboni; P Campana; D H Campora Perez; L Capriotti; A Carbone; G Carboni; R Cardinale; A Cardini; P Carniti; L Carson; K Carvalho Akiba; G Casse; L Cassina; L Castillo Garcia; M Cattaneo; Ch Cauet; G Cavallero; R Cenci; M Charles; Ph Charpentier; G Chatzikonstantinidis; M Chefdeville; S Chen; S-F Cheung; V Chobanova; M Chrzaszcz; X Cid Vidal; G Ciezarek; P E L Clarke; M Clemencic; H V Cliff; J Closier; V Coco; J Cogan; E Cogneras; V Cogoni; L Cojocariu; G Collazuol; P Collins; A Comerma-Montells; A Contu; A Cook; G Coombs; S Coquereau; G Corti; M Corvo; C M Costa Sobral; B Couturier; G A Cowan; D C Craik; A Crocombe; M Cruz Torres; S Cunliffe; R Currie; C D'Ambrosio; F Da Cunha Marinho; E Dall'Occo; J Dalseno; P N Y David; A Davis; O De Aguiar Francisco; K De Bruyn; S De Capua; M De Cian; J M De Miranda; L De Paula; M De Serio; P De Simone; C-T Dean; D Decamp; M Deckenhoff; L Del Buono; M Demmer; A Dendek; D Derkach; O Deschamps; F Dettori; B Dey; A Di Canto; H Dijkstra; F Dordei; M Dorigo; A Dosil Suárez; A Dovbnya; K Dreimanis; L Dufour; G Dujany; K Dungs; P Durante; R Dzhelyadin; A Dziurda; A Dzyuba; N Déléage; S Easo; M Ebert; U Egede; V Egorychev; S Eidelman; S Eisenhardt; U Eitschberger; R Ekelhof; L Eklund; S Ely; S Esen; H M Evans; T Evans; A Falabella; N Farley; S Farry; R Fay; D Fazzini; D Ferguson; A Fernandez Prieto; F Ferrari; F Ferreira Rodrigues; M Ferro-Luzzi; S Filippov; R A Fini; M Fiore; M Fiorini; M Firlej; C Fitzpatrick; T Fiutowski; F Fleuret; K Fohl; M Fontana; F Fontanelli; D C Forshaw; R Forty; V Franco Lima; M Frank; C Frei; J Fu; E Furfaro; C Färber; A Gallas Torreira; D Galli; S Gallorini; S Gambetta; M Gandelman; P Gandini; Y Gao; L M Garcia Martin; J García Pardiñas; J Garra Tico; L Garrido; P J Garsed; D Gascon; C Gaspar; L Gavardi; G Gazzoni; D Gerick; E Gersabeck; M Gersabeck; T Gershon; Ph Ghez; S Gianì; V Gibson; O G Girard; L Giubega; K Gizdov; V V Gligorov; D Golubkov; A Golutvin; A Gomes; I V Gorelov; C Gotti; E Govorkova; M Grabalosa Gándara; R Graciani Diaz; L A Granado Cardoso; E Graugés; E Graverini; G Graziani; A Grecu; P Griffith; L Grillo; B R Gruberg Cazon; O Grünberg; E Gushchin; Yu Guz; T Gys; C Göbel; T Hadavizadeh; C Hadjivasiliou; G Haefeli; C Haen; S C Haines; S Hall; B Hamilton; X Han; S Hansmann-Menzemer; N Harnew; S T Harnew; J Harrison; M Hatch; J He; T Head; A Heister; K Hennessy; P Henrard; L Henry; J A Hernando Morata; E van Herwijnen; M Heß; A Hicheur; D Hill; C Hombach; H Hopchev; W Hulsbergen; T Humair; M Hushchyn; N Hussain; D Hutchcroft; M Idzik; P Ilten; R Jacobsson; A Jaeger; J Jalocha; E Jans; A Jawahery; F Jiang; M John; D Johnson; C R Jones; C Joram; B Jost; N Jurik; S Kandybei; W Kanso; M Karacson; J M Kariuki; S Karodia; M Kecke; M Kelsey; I R Kenyon; M Kenzie; T Ketel; E Khairullin; B Khanji; C Khurewathanakul; T Kirn; S Klaver; K Klimaszewski; S Koliiev; M Kolpin; I Komarov; R F Koopman; P Koppenburg; A Kosmyntseva; A Kozachuk; M Kozeiha; L Kravchuk; K Kreplin; M Kreps; P Krokovny; F Kruse; W Krzemien; W Kucewicz; M Kucharczyk; V Kudryavtsev; A K Kuonen; K Kurek; T Kvaratskheliya; D Lacarrere; G Lafferty; A Lai; G Lanfranchi; C Langenbruch; T Latham; C Lazzeroni; R Le Gac; J van Leerdam; J-P Lees; A Leflat; J Lefrançois; R Lefèvre; F Lemaitre; E Lemos Cid; O Leroy; T Lesiak; B Leverington; Y Li; T Likhomanenko; R Lindner; C Linn; F Lionetto; B Liu; X Liu; D Loh; I Longstaff; J H Lopes; D Lucchesi; M Lucio Martinez; H Luo; A Lupato; E Luppi; O Lupton; A Lusiani; X Lyu; F Machefert; F Maciuc; O Maev; K Maguire; S Malde; A Malinin; T Maltsev; G Manca; G Mancinelli; P Manning; J Maratas; J F Marchand; U Marconi; C Marin Benito; P Marino; J Marks; G Martellotti; M Martin; M Martinelli; D Martinez Santos; F Martinez Vidal; D Martins Tostes; L M Massacrier; A Massafferri; R Matev; A Mathad; Z Mathe; C Matteuzzi; A Mauri; B Maurin; A Mazurov; M McCann; J McCarthy; A McNab; R McNulty; B Meadows; F Meier; M Meissner; D Melnychuk; M Merk; A Merli; E Michielin; D A Milanes; M-N Minard; D S Mitzel; A Mogini; J Molina Rodriguez; I A Monroy; S Monteil; M Morandin; P Morawski; A Mordà; M J Morello; J Moron; A B Morris; R Mountain; F Muheim; M Mulder; M Mussini; D Müller; J Müller; K Müller; V Müller; P Naik; T Nakada; R Nandakumar; A Nandi; I Nasteva; M Needham; N Neri; S Neubert; N Neufeld; M Neuner; A D Nguyen; T D Nguyen; C Nguyen-Mau; S Nieswand; R Niet; N Nikitin; T Nikodem; A Novoselov; D P O'Hanlon; A Oblakowska-Mucha; V Obraztsov; S Ogilvy; R Oldeman; C J G Onderwater; J M Otalora Goicochea; A Otto; P Owen; A Oyanguren; P R Pais; A Palano; F Palombo; M Palutan; J Panman; A Papanestis; M Pappagallo; L L Pappalardo; W Parker; C Parkes; G Passaleva; A Pastore; G D Patel; M Patel; C Patrignani; A Pearce; A Pellegrino; G Penso; M Pepe Altarelli; S Perazzini; P Perret; L Pescatore; K Petridis; A Petrolini; A Petrov; M Petruzzo; E Picatoste Olloqui; B Pietrzyk; M Pikies; D Pinci; A Pistone; A Piucci; S Playfer; M Plo Casasus; T Poikela; F Polci; A Poluektov; I Polyakov; E Polycarpo; G J Pomery; A Popov; D Popov; B Popovici; S Poslavskii; C Potterat; E Price; J D Price; J Prisciandaro; A Pritchard; C Prouve; V Pugatch; A Puig Navarro; G Punzi; W Qian; R Quagliani; B Rachwal; J H Rademacker; M Rama; M Ramos Pernas; M S Rangel; I Raniuk; F Ratnikov; G Raven; F Redi; S Reichert; A C Dos Reis; C Remon Alepuz; V Renaudin; S Ricciardi; S Richards; M Rihl; K Rinnert; V Rives Molina; P Robbe; A B Rodrigues; E Rodrigues; J A Rodriguez Lopez; P Rodriguez Perez; A Rogozhnikov; S Roiser; A Rollings; V Romanovskiy; A Romero Vidal; J W Ronayne; M Rotondo; M S Rudolph; T Ruf; P Ruiz Valls; J J Saborido Silva; E Sadykhov; N Sagidova; B Saitta; V Salustino Guimaraes; C Sanchez Mayordomo; B Sanmartin Sedes; R Santacesaria; C Santamarina Rios; M Santimaria; E Santovetti; A Sarti; C Satriano; A Satta; D M Saunders; D Savrina; S Schael; M Schellenberg; M Schiller; H Schindler; M Schlupp; M Schmelling; T Schmelzer; B Schmidt; O Schneider; A Schopper; K Schubert; M Schubiger; M-H Schune; R Schwemmer; B Sciascia; A Sciubba; A Semennikov; A Sergi; N Serra; J Serrano; L Sestini; P Seyfert; M Shapkin; I Shapoval; Y Shcheglov; T Shears; L Shekhtman; V Shevchenko; B G Siddi; R Silva Coutinho; L Silva de Oliveira; G Simi; S Simone; M Sirendi; N Skidmore; T Skwarnicki; E Smith; I T Smith; J Smith; M Smith; H Snoek; M D Sokoloff; F J P Soler; B Souza De Paula; B Spaan; P Spradlin; S Sridharan; F Stagni; M Stahl; S Stahl; P Stefko; S Stefkova; O Steinkamp; S Stemmle; O Stenyakin; S Stevenson; S Stoica; S Stone; B Storaci; S Stracka; M Straticiuc; U Straumann; L Sun; W Sutcliffe; K Swientek; V Syropoulos; M Szczekowski; T Szumlak; S T'Jampens; A Tayduganov; T Tekampe; G Tellarini; F Teubert; E Thomas; J van Tilburg; M J Tilley; V Tisserand; M Tobin; S Tolk; L Tomassetti; D Tonelli; S Topp-Joergensen; F Toriello; E Tournefier; S Tourneur; K Trabelsi; M Traill; M T Tran; M Tresch; A Trisovic; A Tsaregorodtsev; P Tsopelas; A Tully; N Tuning; A Ukleja; A Ustyuzhanin; U Uwer; C Vacca; V Vagnoni; A Valassi; S Valat; G Valenti; A Vallier; R Vazquez Gomez; P Vazquez Regueiro; S Vecchi; M van Veghel; J J Velthuis; M Veltri; G Veneziano; A Venkateswaran; M Vernet; M Vesterinen; B Viaud; D Vieira; M Vieites Diaz; H Viemann; X Vilasis-Cardona; M Vitti; V Volkov; A Vollhardt; B Voneki; A Vorobyev; V Vorobyev; C Voß; J A de Vries; C Vázquez Sierra; R Waldi; C Wallace; R Wallace; J Walsh; J Wang; D R Ward; H M Wark; N K Watson; D Websdale; A Weiden; M Whitehead; J Wicht; G Wilkinson; M Wilkinson; M Williams; M P Williams; M Williams; T Williams; F F Wilson; J Wimberley; J Wishahi; W Wislicki; M Witek; G Wormser; S A Wotton; K Wraight; K Wyllie; Y Xie; Z Xing; Z Xu; Z Yang; H Yin; J Yu; X Yuan; O Yushchenko; K A Zarebski; M Zavertyaev; L Zhang; Y Zhang; Y Zhang; A Zhelezov; Y Zheng; A Zhokhov; X Zhu; V Zhukov; S Zucchelli

doi:10.1140/epjc/s10052-017-4610-6

Observation of [Formula: see text] and [Formula: see text] decays

Eur Phys J C Part Fields. 2017;77(2):72. doi: 10.1140/epjc/s10052-017-4610-6. Epub 2017 Feb 6.

Authors

R Aaij¹, B Adeva², M Adinolfi³, Z Ajaltouni⁴, S Akar⁵, J Albrecht⁶, F Alessio¹, M Alexander⁷, S Ali⁸, G Alkhazov⁹, P Alvarez Cartelle¹⁰, A A Alves Jr¹¹, S Amato¹², S Amerio¹³, Y Amhis¹⁴, L An¹⁵, L Anderlini¹⁶, G Andreassi¹⁵, M Andreotti¹⁷, J E Andrews¹⁸, R B Appleby¹⁹, F Archilli⁸, P d'Argent²⁰, J Arnau Romeu⁵, A Artamonov²¹, M Artuso²², E Aslanides⁵, G Auriemma²³, M Baalouch⁴, I Babuschkin¹⁹, S Bachmann²⁰, J J Back²⁴, A Badalov²⁵, C Baesso²⁶, S Baker¹⁰, W Baldini¹⁷, R J Barlow¹⁹, C Barschel¹, S Barsuk¹⁴, W Barter¹, M Baszczyk²⁷, V Batozskaya²⁸, B Batsukh²², V Battista¹⁵, A Bay¹⁵, L Beaucourt²⁹, J Beddow⁷, F Bedeschi³⁰, I Bediaga³¹, L J Bel⁸, V Bellee¹⁵, N Belloli³², K Belous²¹, I Belyaev³³, E Ben-Haim³⁴, G Bencivenni³⁵, S Benson⁸, J Benton³, A Berezhnoy³⁶, R Bernet³⁷, A Bertolin¹³, C Betancourt³⁷, F Betti³⁸, M-O Bettler¹, M van Beuzekom⁸, Ia Bezshyiko³⁷, S Bifani³⁹, P Billoir³⁴, T Bird¹⁹, A Birnkraut⁶, A Bitadze¹⁹, A Bizzeti¹⁶, T Blake²⁴, F Blanc¹⁵, J Blouw⁴⁰, S Blusk²², V Bocci²³, T Boettcher⁴¹, A Bondar⁴², N Bondar^{9

1}, W Bonivento⁴³, I Bordyuzhin³³, A Borgheresi³², S Borghi¹⁹, M Borisyak⁴⁴, M Borsato², F Bossu¹⁴, M Boubdir⁴⁵, T J V Bowcock⁴⁶, E Bowen³⁷, C Bozzi^{17

1}, S Braun²⁰, M Britsch²⁰, T Britton²², J Brodzicka¹⁹, E Buchanan³, C Burr¹⁹, A Bursche¹², J Buytaert¹, S Cadeddu⁴³, R Calabrese¹⁷, M Calvi³², M Calvo Gomez²⁵, A Camboni²⁵, P Campana³⁵, D H Campora Perez¹, L Capriotti¹⁹, A Carbone³⁸, G Carboni⁴⁷, R Cardinale⁴⁸, A Cardini⁴³, P Carniti³², L Carson⁴⁹, K Carvalho Akiba¹², G Casse⁴⁶, L Cassina³², L Castillo Garcia¹⁵, M Cattaneo¹, Ch Cauet⁶, G Cavallero⁴⁸, R Cenci³⁰, M Charles³⁴, Ph Charpentier¹, G Chatzikonstantinidis³⁹, M Chefdeville²⁹, S Chen¹⁹, S-F Cheung⁵⁰, V Chobanova², M Chrzaszcz^{27

37}, X Cid Vidal², G Ciezarek⁸, P E L Clarke⁴⁹, M Clemencic¹, H V Cliff⁵¹, J Closier¹, V Coco¹¹, J Cogan⁵, E Cogneras⁴, V Cogoni^{43

1}, L Cojocariu⁵², G Collazuol¹³, P Collins¹, A Comerma-Montells²⁰, A Contu¹, A Cook³, G Coombs¹, S Coquereau²⁵, G Corti¹, M Corvo¹⁷, C M Costa Sobral²⁴, B Couturier¹, G A Cowan⁴⁹, D C Craik⁴⁹, A Crocombe²⁴, M Cruz Torres²⁶, S Cunliffe¹⁰, R Currie¹⁰, C D'Ambrosio¹, F Da Cunha Marinho¹², E Dall'Occo⁸, J Dalseno³, P N Y David⁸, A Davis¹¹, O De Aguiar Francisco¹², K De Bruyn⁵, S De Capua¹⁹, M De Cian²⁰, J M De Miranda³¹, L De Paula¹², M De Serio⁵³, P De Simone³⁵, C-T Dean⁷, D Decamp²⁹, M Deckenhoff⁶, L Del Buono³⁴, M Demmer⁶, A Dendek⁵⁴, D Derkach⁴⁴, O Deschamps⁴, F Dettori¹, B Dey⁵⁵, A Di Canto¹, H Dijkstra¹, F Dordei¹, M Dorigo¹⁵, A Dosil Suárez², A Dovbnya⁵⁶, K Dreimanis⁴⁶, L Dufour⁸, G Dujany¹⁹, K Dungs¹, P Durante¹, R Dzhelyadin²¹, A Dziurda¹, A Dzyuba⁹, N Déléage²⁹, S Easo⁵⁷, M Ebert⁴⁹, U Egede¹⁰, V Egorychev³³, S Eidelman⁴², S Eisenhardt⁴⁹, U Eitschberger⁶, R Ekelhof⁶, L Eklund⁷, S Ely²², S Esen²⁰, H M Evans⁵¹, T Evans⁵⁰, A Falabella³⁸, N Farley³⁹, S Farry⁴⁶, R Fay⁴⁶, D Fazzini³², D Ferguson⁴⁹, A Fernandez Prieto², F Ferrari^{38

1}, F Ferreira Rodrigues³¹, M Ferro-Luzzi¹, S Filippov⁵⁸, R A Fini⁵³, M Fiore¹⁷, M Fiorini¹⁷, M Firlej⁵⁴, C Fitzpatrick¹⁵, T Fiutowski⁵⁴, F Fleuret¹⁴, K Fohl¹, M Fontana^{43

1}, F Fontanelli⁴⁸, D C Forshaw²², R Forty¹, V Franco Lima⁴⁶, M Frank¹, C Frei¹, J Fu⁵⁵, E Furfaro⁴⁷, C Färber¹, A Gallas Torreira², D Galli³⁸, S Gallorini¹³, S Gambetta⁴⁹, M Gandelman¹², P Gandini⁵⁰, Y Gao⁵⁹, L M Garcia Martin⁶⁰, J García Pardiñas², J Garra Tico⁵¹, L Garrido²⁵, P J Garsed⁵¹, D Gascon²⁵, C Gaspar¹, L Gavardi⁶, G Gazzoni⁴, D Gerick²⁰, E Gersabeck²⁰, M Gersabeck¹⁹, T Gershon²⁴, Ph Ghez²⁹, S Gianì¹⁵, V Gibson⁵¹, O G Girard¹⁵, L Giubega⁵², K Gizdov⁴⁹, V V Gligorov³⁴, D Golubkov³³, A Golutvin^{1

10}, A Gomes³¹, I V Gorelov³⁶, C Gotti³², E Govorkova⁸, M Grabalosa Gándara⁴, R Graciani Diaz²⁵, L A Granado Cardoso¹, E Graugés²⁵, E Graverini³⁷, G Graziani¹⁶, A Grecu⁵², P Griffith³⁹, L Grillo^{32

1}, B R Gruberg Cazon⁵⁰, O Grünberg⁶¹, E Gushchin⁵⁸, Yu Guz²¹, T Gys¹, C Göbel²⁶, T Hadavizadeh⁵⁰, C Hadjivasiliou⁴, G Haefeli¹⁵, C Haen¹, S C Haines⁵¹, S Hall¹⁰, B Hamilton¹⁸, X Han²⁰, S Hansmann-Menzemer²⁰, N Harnew⁵⁰, S T Harnew³, J Harrison¹⁹, M Hatch¹, J He⁶², T Head¹⁵, A Heister⁴⁵, K Hennessy⁴⁶, P Henrard⁴, L Henry³⁴, J A Hernando Morata², E van Herwijnen¹, M Heß⁶¹, A Hicheur¹², D Hill⁵⁰, C Hombach¹⁹, H Hopchev¹⁵, W Hulsbergen⁸, T Humair¹⁰, M Hushchyn⁴⁴, N Hussain⁵⁰, D Hutchcroft⁴⁶, M Idzik⁵⁴, P Ilten⁴¹, R Jacobsson¹, A Jaeger²⁰, J Jalocha⁵⁰, E Jans⁸, A Jawahery¹⁸, F Jiang⁵⁹, M John⁵⁰, D Johnson¹, C R Jones⁵¹, C Joram¹, B Jost¹, N Jurik²², S Kandybei⁵⁶, W Kanso⁵, M Karacson¹, J M Kariuki³, S Karodia⁷, M Kecke²⁰, M Kelsey²², I R Kenyon³⁹, M Kenzie⁵¹, T Ketel⁶³, E Khairullin⁴⁴, B Khanji²⁰, C Khurewathanakul¹⁵, T Kirn⁴⁵, S Klaver¹⁹, K Klimaszewski²⁸, S Koliiev⁶⁴, M Kolpin²⁰, I Komarov¹⁵, R F Koopman⁶³, P Koppenburg⁸, A Kosmyntseva³³, A Kozachuk³⁶, M Kozeiha⁴, L Kravchuk⁵⁸, K Kreplin²⁰, M Kreps²⁴, P Krokovny⁴², F Kruse⁶, W Krzemien²⁸, W Kucewicz²⁷, M Kucharczyk²⁷, V Kudryavtsev⁴², A K Kuonen¹⁵, K Kurek²⁸, T Kvaratskheliya^{33

1}, D Lacarrere¹, G Lafferty¹⁹, A Lai⁴³, G Lanfranchi³⁵, C Langenbruch⁴⁵, T Latham²⁴, C Lazzeroni³⁹, R Le Gac⁵, J van Leerdam⁸, J-P Lees²⁹, A Leflat^{36

1}, J Lefrançois¹⁴, R Lefèvre⁴, F Lemaitre¹, E Lemos Cid², O Leroy⁵, T Lesiak²⁷, B Leverington²⁰, Y Li¹⁴, T Likhomanenko^{44

65}, R Lindner¹, C Linn¹, F Lionetto³⁷, B Liu⁴³, X Liu⁵⁹, D Loh²⁴, I Longstaff⁷, J H Lopes¹², D Lucchesi¹³, M Lucio Martinez², H Luo⁴⁹, A Lupato¹³, E Luppi¹⁷, O Lupton⁵⁰, A Lusiani³⁰, X Lyu⁶², F Machefert¹⁴, F Maciuc⁵², O Maev⁹, K Maguire¹⁹, S Malde⁵⁰, A Malinin⁶⁵, T Maltsev⁴², G Manca¹⁴, G Mancinelli⁵, P Manning²², J Maratas⁴, J F Marchand²⁹, U Marconi³⁸, C Marin Benito²⁵, P Marino³⁰, J Marks²⁰, G Martellotti²³, M Martin⁵, M Martinelli¹⁵, D Martinez Santos², F Martinez Vidal⁶⁰, D Martins Tostes¹², L M Massacrier¹⁴, A Massafferri³¹, R Matev¹, A Mathad²⁴, Z Mathe¹, C Matteuzzi³², A Mauri³⁷, B Maurin¹⁵, A Mazurov³⁹, M McCann¹⁰, J McCarthy³⁹, A McNab¹⁹, R McNulty⁶⁶, B Meadows¹¹, F Meier⁶, M Meissner²⁰, D Melnychuk²⁸, M Merk⁸, A Merli⁵⁵, E Michielin¹³, D A Milanes⁶⁷, M-N Minard²⁹, D S Mitzel²⁰, A Mogini³⁴, J Molina Rodriguez³¹, I A Monroy⁶⁷, S Monteil⁴, M Morandin¹³, P Morawski⁵⁴, A Mordà⁵, M J Morello³⁰, J Moron⁵⁴, A B Morris⁴⁹, R Mountain²², F Muheim⁴⁹, M Mulder⁸, M Mussini³⁸, D Müller¹⁹, J Müller⁶, K Müller³⁷, V Müller⁶, P Naik³, T Nakada¹⁵, R Nandakumar⁵⁷, A Nandi⁵⁰, I Nasteva¹², M Needham⁴⁹, N Neri⁵⁵, S Neubert²⁰, N Neufeld¹, M Neuner²⁰, A D Nguyen¹⁵, T D Nguyen¹⁵, C Nguyen-Mau¹⁵, S Nieswand⁴⁵, R Niet⁶, N Nikitin³⁶, T Nikodem²⁰, A Novoselov²¹, D P O'Hanlon²⁴, A Oblakowska-Mucha⁵⁴, V Obraztsov²¹, S Ogilvy³⁵, R Oldeman⁵¹, C J G Onderwater⁶⁸, J M Otalora Goicochea¹², A Otto¹, P Owen³⁷, A Oyanguren^{1

60}, P R Pais¹⁵, A Palano⁵³, F Palombo⁵⁵, M Palutan³⁵, J Panman¹, A Papanestis⁵⁷, M Pappagallo⁵³, L L Pappalardo¹⁷, W Parker¹⁸, C Parkes¹⁹, G Passaleva¹⁶, A Pastore⁵³, G D Patel⁴⁶, M Patel¹⁰, C Patrignani³⁸, A Pearce^{57

19}, A Pellegrino⁸, G Penso²³, M Pepe Altarelli¹, S Perazzini¹, P Perret⁴, L Pescatore³⁹, K Petridis³, A Petrolini⁴⁸, A Petrov⁶⁵, M Petruzzo⁵⁵, E Picatoste Olloqui²⁵, B Pietrzyk²⁹, M Pikies²⁷, D Pinci²³, A Pistone⁴⁸, A Piucci²⁰, S Playfer⁴⁹, M Plo Casasus², T Poikela¹, F Polci³⁴, A Poluektov^{42

24}, I Polyakov²², E Polycarpo¹², G J Pomery³, A Popov²¹, D Popov^{40

1}, B Popovici⁵², S Poslavskii²¹, C Potterat¹², E Price³, J D Price⁴⁶, J Prisciandaro², A Pritchard⁴⁶, C Prouve³, V Pugatch⁶⁴, A Puig Navarro¹⁵, G Punzi³⁰, W Qian⁵⁰, R Quagliani^{14

3}, B Rachwal²⁷, J H Rademacker³, M Rama³⁰, M Ramos Pernas², M S Rangel¹², I Raniuk⁵⁶, F Ratnikov⁴⁴, G Raven⁶³, F Redi¹⁰, S Reichert⁶, A C Dos Reis³¹, C Remon Alepuz⁶⁰, V Renaudin¹⁴, S Ricciardi⁵⁷, S Richards³, M Rihl¹, K Rinnert⁴⁶, V Rives Molina²⁵, P Robbe^{14

1}, A B Rodrigues³¹, E Rodrigues¹¹, J A Rodriguez Lopez⁶⁷, P Rodriguez Perez¹⁹, A Rogozhnikov⁴⁴, S Roiser¹, A Rollings⁵⁰, V Romanovskiy²¹, A Romero Vidal², J W Ronayne⁶⁶, M Rotondo³⁵, M S Rudolph²², T Ruf¹, P Ruiz Valls⁶⁰, J J Saborido Silva², E Sadykhov³³, N Sagidova⁹, B Saitta⁴³, V Salustino Guimaraes¹², C Sanchez Mayordomo⁶⁰, B Sanmartin Sedes², R Santacesaria²³, C Santamarina Rios², M Santimaria³⁵, E Santovetti⁴⁷, A Sarti³⁵, C Satriano²³, A Satta⁴⁷, D M Saunders³, D Savrina^{33

36}, S Schael⁴⁵, M Schellenberg⁶, M Schiller¹, H Schindler¹, M Schlupp⁶, M Schmelling⁴⁰, T Schmelzer⁶, B Schmidt¹, O Schneider¹⁵, A Schopper¹, K Schubert⁶, M Schubiger¹⁵, M-H Schune¹⁴, R Schwemmer¹, B Sciascia³⁵, A Sciubba²³, A Semennikov³³, A Sergi³⁹, N Serra³⁷, J Serrano⁵, L Sestini¹³, P Seyfert³², M Shapkin²¹, I Shapoval⁵⁶, Y Shcheglov⁹, T Shears⁴⁶, L Shekhtman⁴², V Shevchenko⁶⁵, B G Siddi^{17

1}, R Silva Coutinho³⁷, L Silva de Oliveira¹², G Simi¹³, S Simone⁵³, M Sirendi⁵¹, N Skidmore³, T Skwarnicki²², E Smith¹⁰, I T Smith⁴⁹, J Smith⁵¹, M Smith¹⁰, H Snoek⁸, M D Sokoloff¹¹, F J P Soler⁷, B Souza De Paula¹², B Spaan⁶, P Spradlin⁷, S Sridharan¹, F Stagni¹, M Stahl²⁰, S Stahl¹, P Stefko¹⁵, S Stefkova¹⁰, O Steinkamp³⁷, S Stemmle²⁰, O Stenyakin²¹, S Stevenson⁵⁰, S Stoica⁵², S Stone²², B Storaci³⁷, S Stracka³⁰, M Straticiuc⁵², U Straumann³⁷, L Sun¹¹, W Sutcliffe¹⁰, K Swientek⁵⁴, V Syropoulos⁶³, M Szczekowski²⁸, T Szumlak⁵⁴, S T'Jampens²⁹, A Tayduganov⁵, T Tekampe⁶, G Tellarini¹⁷, F Teubert¹, E Thomas¹, J van Tilburg⁸, M J Tilley¹⁰, V Tisserand²⁹, M Tobin¹⁵, S Tolk⁵¹, L Tomassetti¹⁷, D Tonelli¹, S Topp-Joergensen⁵⁰, F Toriello²², E Tournefier²⁹, S Tourneur¹⁵, K Trabelsi¹⁵, M Traill⁷, M T Tran¹⁵, M Tresch³⁷, A Trisovic¹, A Tsaregorodtsev⁵, P Tsopelas⁸, A Tully⁵¹, N Tuning⁸, A Ukleja²⁸, A Ustyuzhanin⁴⁴, U Uwer²⁰, C Vacca⁴³, V Vagnoni^{38

1}, A Valassi¹, S Valat¹, G Valenti³⁸, A Vallier¹⁴, R Vazquez Gomez³⁵, P Vazquez Regueiro², S Vecchi¹⁷, M van Veghel⁸, J J Velthuis³, M Veltri¹⁶, G Veneziano⁵⁰, A Venkateswaran²², M Vernet⁴, M Vesterinen²⁰, B Viaud¹⁴, D Vieira³¹, M Vieites Diaz², H Viemann⁶¹, X Vilasis-Cardona²⁵, M Vitti⁵¹, V Volkov³⁶, A Vollhardt³⁷, B Voneki¹, A Vorobyev⁹, V Vorobyev⁴², C Voß⁶¹, J A de Vries⁸, C Vázquez Sierra², R Waldi⁶¹, C Wallace²⁴, R Wallace⁶⁶, J Walsh³⁰, J Wang²², D R Ward⁵¹, H M Wark⁴⁶, N K Watson³⁹, D Websdale¹⁰, A Weiden³⁷, M Whitehead¹, J Wicht²⁴, G Wilkinson^{1

50}, M Wilkinson²², M Williams¹, M P Williams³⁹, M Williams⁴¹, T Williams³⁹, F F Wilson⁵⁷, J Wimberley¹⁸, J Wishahi⁶, W Wislicki²⁸, M Witek²⁷, G Wormser¹⁴, S A Wotton⁵¹, K Wraight⁷, K Wyllie¹, Y Xie⁶⁹, Z Xing²², Z Xu¹⁵, Z Yang⁵⁹, H Yin⁶⁹, J Yu⁶⁹, X Yuan⁴², O Yushchenko²¹, K A Zarebski³⁹, M Zavertyaev⁴⁰, L Zhang⁵⁹, Y Zhang¹⁴, Y Zhang⁶², A Zhelezov²⁰, Y Zheng⁶², A Zhokhov³³, X Zhu⁵⁹, V Zhukov⁴⁵, S Zucchelli³⁸

Affiliations

¹ European Organization for Nuclear Research (CERN), Geneva, Switzerland.
² Universitat de Barcelona, Barcelona, Spain.
³ H.H. Wills Physics Laboratory, University of Bristol, Bristol, UK.
⁴ Clermont Université, Université Blaise Pascal, CNRS/IN2P3, LPC, Clermont-Ferrand, France.
⁵ CPPM, Aix-Marseille Université, CNRS/IN2P3, Marseille, France.
⁶ Fakultät Physik, Technische Universität Dortmund, Dortmund, Germany.
⁷ School of Physics and Astronomy, University of Glasgow, Glasgow, UK.
⁸ Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands.
⁹ Petersburg Nuclear Physics Institute (PNPI), Gatchina, Russia.
¹⁰ Imperial College London, London, UK.
¹¹ University of Cincinnati, Cincinnati, OH USA.
¹² Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil.
¹³ Sezione INFN di Padova, Padova, Italy.
¹⁴ LAL, Université Paris-Sud, CNRS/IN2P3, Orsay, France.
¹⁵ Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.
¹⁶ Sezione INFN di Firenze, Florence, Italy.
¹⁷ Sezione INFN di Ferrara, Ferrara, Italy.
¹⁸ University of Maryland, College Park, MD USA.
¹⁹ School of Physics and Astronomy, University of Manchester, Manchester, UK.
²⁰ Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany.
²¹ Institute for High Energy Physics (IHEP), Protvino, Russia.
²² Syracuse University, Syracuse, NY USA.
²³ Sezione INFN di Roma La Sapienza, Rome, Italy.
²⁴ Department of Physics, University of Warwick, Coventry, UK.
²⁵ ICCUB, Universidad de Santiago de Compostela, Santiago de Compostela, Spain.
²⁶ Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Rio de Janeiro, Brazil.
²⁷ Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków, Poland.
²⁸ National Center for Nuclear Research (NCBJ), Warsaw, Poland.
²⁹ LAPP, Université Savoie Mont-Blanc, CNRS/IN2P3, Annecy-Le-Vieux, France.
³⁰ Sezione INFN di Pisa, Pisa, Italy.
³¹ Centro Brasileiro de Pesquisas Físicas (CBPF), Rio de Janeiro, Brazil.
³² Sezione INFN di Milano Bicocca, Milan, Italy.
³³ Institute of Theoretical and Experimental Physics (ITEP), Moscow, Russia.
³⁴ LPNHE, Université Pierre et Marie Curie, Université Paris Diderot, CNRS/IN2P3, Paris, France.
³⁵ Laboratori Nazionali dell'INFN di Frascati, Frascati, Italy.
³⁶ Institute of Nuclear Physics, Moscow State University (SINP MSU), Moscow, Russia.
³⁷ Physik-Institut, Universität Zürich, Zurich, Switzerland.
³⁸ Sezione INFN di Bologna, Bologna, Italy.
³⁹ University of Birmingham, Birmingham, UK.
⁴⁰ Max-Planck-Institut für Kernphysik (MPIK), Heidelberg, Germany.
⁴¹ Massachusetts Institute of Technology, Cambridge, MA USA.
⁴² Budker Institute of Nuclear Physics (BINP SB RAS), Novosibirsk, Russia.
⁴³ Sezione INFN di Cagliari, Cagliari, Italy.
⁴⁴ Yandex School of Data Analysis, Moscow, Russia.
⁴⁵ I. Physikalisches Institut, RWTH Aachen University, Aachen, Germany.
⁴⁶ Oliver Lodge Laboratory, University of Liverpool, Liverpool, UK.
⁴⁷ Sezione INFN di Roma Tor Vergata, Rome, Italy.
⁴⁸ Sezione INFN di Genova, Genova, Italy.
⁴⁹ School of Physics and Astronomy, University of Edinburgh, Edinburgh, UK.
⁵⁰ Department of Physics, University of Oxford, Oxford, UK.
⁵¹ Cavendish Laboratory, University of Cambridge, Cambridge, UK.
⁵² Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest-Magurele, Romania.
⁵³ Sezione INFN di Bari, Bari, Italy.
⁵⁴ Faculty of Physics and Applied Computer Science, AGH, University of Science and Technology, Kraków, Poland.
⁵⁵ Sezione INFN di Milano, Milan, Italy.
⁵⁶ NSC Kharkiv Institute of Physics and Technology (NSC KIPT), Kharkiv, Ukraine.
⁵⁷ STFC Rutherford Appleton Laboratory, Didcot, UK.
⁵⁸ Institute for Nuclear Research of the Russian Academy of Sciences (INR RAN), Moscow, Russia.
⁵⁹ Center for High Energy Physics, Tsinghua University, Beijing, China.
⁶⁰ Instituto de Fisica Corpuscular (IFIC), Universitat de Valencia-CSIC, Valencia, Spain.
⁶¹ Institut für Physik, Universität Rostock, Rostock, Germany.
⁶² University of Chinese Academy of Sciences, Beijing, China.
⁶³ Nikhef National Institute for Subatomic Physics, VU University Amsterdam, Amsterdam, The Netherlands.
⁶⁴ Institute for Nuclear Research of the National Academy of Sciences (KINR), Kyiv, Ukraine.
⁶⁵ National Research Centre Kurchatov Institute, Moscow, Russia.
⁶⁶ School of Physics, University College Dublin, Dublin, Ireland.
⁶⁷ Departamento de Fisica, Universidad Nacional de Colombia, Bogotá, Colombia.
⁶⁸ Van Swinderen Institute, University of Groningen, Groningen, The Netherlands.
⁶⁹ Institute of Particle Physics, Central China Normal University, Wuhan, Hubei China.

Abstract

The decays [Formula: see text] and [Formula: see text] are observed for the first time using a data sample corresponding to an integrated luminosity of 3.0 fb[Formula: see text], collected by the LHCb experiment in proton-proton collisions at the centre-of-mass energies of 7 and 8[Formula: see text]. The branching fractions relative to that of [Formula: see text] are measured to be [Formula: see text]where the first uncertainties are statistical and the second are systematic.