Aaij R, Adeva B, Adinolfi M, Ajaltouni Z, Akar S, Albrecht J, Alessio F, Alexander M, Ali S, Alkhazov G, Alvarez Cartelle P, Alves A A, Amato S, Amerio S, Amhis Y, An L, Anderlini L, Andreassi G, Andreotti M, Andrews J E, Appleby R B, Archilli F, d'Argent P, Arnau Romeu J, Artamonov A, Artuso M, Aslanides E, Auriemma G, Baalouch M, Babuschkin I, Bachmann S, Back J J, Badalov A, Baesso C, Baker S, Balagura V, Baldini W, Baranov A, Barlow R J, Barschel C, Barsuk S, Barter W, Baryshnikov F, Baszczyk M, Batozskaya V, Battista V, Bay A, Beaucourt L, Beddow J, Bedeschi F, Bediaga I, Beiter A, Bel L J, Bellee V, Belloli N, Belous K, Belyaev I, Ben-Haim E, Bencivenni G, Benson S, Beranek S, Berezhnoy A, Bernet R, Bertolin A, Betancourt C, Betti F, Bettler M-O, van Beuzekom M, Bezshyiko Ia, Bifani S, Billoir P, Birnkraut A, Bitadze A, Bizzeti A, Blake T, Blanc F, Blouw J, Blusk S, Bocci V, Boettcher T, Bondar A, Bondar N, Bonivento W, Bordyuzhin I, Borgheresi A, Borghi S, Borisyak M, Borsato M, Bossu F, Boubdir M, Bowcock T J V, Bowen E, Bozzi C, Braun S, Britton T, Brodzicka J, Buchanan E, Burr C, Bursche A, Buytaert J, Cadeddu S, Calabrese R, Calvi M, Calvo Gomez M, Camboni A, Campana P, Campora Perez D H, Capriotti L, Carbone A, Carboni G, Cardinale R, Cardini A, Carniti P, Carson L, Carvalho Akiba K, Casse G, Cassina L, Castillo Garcia L, Cattaneo M, Cavallero G, Cenci R, Chamont D, Charles M, Charpentier Ph, Chatzikonstantinidis G, Chefdeville M, Chen S, Cheung S F, Chobanova V, Chrzaszcz M, Chubykin A, Cid Vidal X, Ciezarek G, Clarke P E L, Clemencic M, Cliff H V, Closier J, Coco V, Cogan J, Cogneras E, Cogoni V, Cojocariu L, Collins P, Comerma-Montells A, Contu A, Cook A, Coombs G, Coquereau S, Corti G, Corvo M, Costa Sobral C M, Couturier B, Cowan G A, Craik D C, Crocombe A, Cruz Torres M, Currie R, D'Ambrosio C, Da Cunha Marinho F, Dall'Occo E, Dalseno J, Davis A, De Bruyn K, De Capua S, De Cian M, De Miranda J M, De Paula L, De Serio M, De Simone P, Dean C T, Decamp D, Deckenhoff M, Del Buono L, Dembinski H-P, Demmer M, Dendek A, Derkach D, Deschamps O, Dettori F, Dey B, Di Canto A, Di Nezza P, Dijkstra H, Dordei F, Dorigo M, Dosil Suárez A, Dovbnya A, Dreimanis K, Dufour L, Dujany G, Dungs K, Durante P, Dzhelyadin R, Dziewiecki M, Dziurda A, Dzyuba A, Déléage N, Easo S, Ebert M, Egede U, Egorychev V, Eidelman S, Eisenhardt S, Eitschberger U, Ekelhof R, Eklund L, Ely S, Esen S, Evans H M, Evans T, Falabella A, Farley N, Farry S, Fay R, Fazzini D, Ferguson D, Fernandez G, Fernandez Prieto A, Ferrari F, Ferreira Rodrigues F, Ferro-Luzzi M, Filippov S, Fini R A, Fiore M, Fiorini M, Firlej M, Fitzpatrick C, Fiutowski T, Fleuret F, Fohl K, Fontana M, Fontanelli F, Forshaw D C, Forty R, Franco Lima V, Frank M, Frei C, Fu J, Funk W, Furfaro E, Färber C, Gallas Torreira A, Galli D, Gallorini S, Gambetta S, Gandelman M, Gandini P, Gao Y, Garcia Martin L M, García Pardiñas J, Garra Tico J, Garrido L, Garsed P J, Gascon D, Gaspar C, Gavardi L, Gazzoni G, Gerick D, Gersabeck E, Gersabeck M, Gershon T, Ghez Ph, Gianì S, Gibson V, Girard O G, Giubega L, Gizdov K, Gligorov V V, Golubkov D, Golutvin A, Gomes A, Gorelov I V, Gotti C, Govorkova E, Graciani Diaz R, Granado Cardoso L A, Graugés E, Graverini E, Graziani G, Grecu A, Greim R, Griffith P, Grillo L, Gruberg Cazon B R, Grünberg O, Gushchin E, Guz Yu, Gys T, Göbel C, Hadavizadeh T, Hadjivasiliou C, Haefeli G, Haen C, Haines S C, Hamilton B, Han X, Hansmann-Menzemer S, Harnew N, Harnew S T, Harrison J, Hatch M, He J, Head T, Heister A, Hennessy K, Henrard P, Henry L, van Herwijnen E, Heß M, Hicheur A, Hill D, Hombach C, Hopchev P H, Huard Z-C, Hulsbergen W, Humair T, Hushchyn M, Hutchcroft D, Idzik M, Ilten P, Jacobsson R, Jalocha J, Jans E, Jawahery A, Jiang F, John M, Johnson D, Jones C R, Joram C, Jost B, Jurik N, Kandybei S, Karacson M, Kariuki J M, Karodia S, Kecke M, Kelsey M, Kenzie M, Ketel T, Khairullin E, Khanji B, Khurewathanakul C, Kirn T, Klaver S, Klimaszewski K, Klimkovich T, Koliiev S, Kolpin M, Komarov I, Kopecna R, Koppenburg P, Kosmyntseva A, Kotriakhova S, Kozeiha M, Kravchuk L, Kreps M, Krokovny P, Kruse F, Krzemien W, Kucewicz W, Kucharczyk M, Kudryavtsev V, Kuonen A K, Kurek K, Kvaratskheliya T, Lacarrere D, Lafferty G, Lai A, Lanfranchi G, Langenbruch C, Latham T, Lazzeroni C, Le Gac R, van Leerdam J, Leflat A, Lefrançois J, Lefèvre R, Lemaitre F, Lemos Cid E, Leroy O, Lesiak T, Leverington B, Li T, Li Y, Li Z, Likhomanenko T, Lindner R, Lionetto F, Liu X, Loh D, Longstaff I, Lopes J H, Lucchesi D, Lucio Martinez M, Luo H, Lupato A, Luppi E, Lupton O, Lusiani A, Lyu X, Machefert F, Maciuc F, Maev O, Maguire K, Malde S, Malinin A, Maltsev T, Manca G, Mancinelli G, Manning P, Maratas J, Marchand J F, Marconi U, Marin Benito C, Marinangeli M, Marino P, Marks J, Martellotti G, Martin M, Martinelli M, Martinez Santos D, Martinez Vidal F, Martins Tostes D, Massacrier L M, Massafferri A, Matev R, Mathad A, Mathe Z, Matteuzzi C, Mauri A, Maurice E, Maurin B, Mazurov A, McCann M, McNab A, McNulty R, Meadows B, Meier F, Melnychuk D, Merk M, Merli A, Michielin E, Milanes D A, Minard M-N, Mitzel D S, Mogini A, Molina Rodriguez J, Monroy I A, Monteil S, Morandin M, Morello M J, Morgunova O, Moron J, Morris A B, Mountain R, Muheim F, Mulder M, Mussini M, Müller D, Müller J, Müller K, Müller V, Naik P, Nakada T, Nandakumar R, Nandi A, Nasteva I, Needham M, Neri N, Neubert S, Neufeld N, Neuner M, Nguyen T D, Nguyen-Mau C, Nieswand S, Niet R, Nikitin N, Nikodem T, Nogay A, Novoselov A, O'Hanlon D P, Oblakowska-Mucha A, Obraztsov V, Ogilvy S, Oldeman R, Onderwater C J G, Ossowska A, Otalora Goicochea J M, Owen P, Oyanguren A, Pais P R, Palano A, Palutan M, Papanestis A, Pappagallo M, Pappalardo L L, Pappenheimer C, Parker W, Parkes C, Passaleva G, Pastore A, Patel M, Patrignani C, Pearce A, Pellegrino A, Penso G, Pepe Altarelli M, Perazzini S, Perret P, Pescatore L, Petridis K, Petrolini A, Petrov A, Petruzzo M, Picatoste Olloqui E, Pietrzyk B, Pikies M, Pinci D, Pistone A, Piucci A, Placinta V, Playfer S, Plo Casasus M, Poikela T, Polci F, Poli Lener M, Poluektov A, Polyakov I, Polycarpo E, Pomery G J, Ponce S, Popov A, Popov D, Popovici B, Poslavskii S, Potterat C, Price E, Prisciandaro J, Prouve C, Pugatch V, Puig Navarro A, Punzi G, Qian W, Quagliani R, Rachwal B, Rademacker J H, Rama M, Ramos Pernas M, Rangel M S, Raniuk I, Ratnikov F, Raven G, Redi F, Reichert S, Dos Reis A C, Remon Alepuz C, Renaudin V, Ricciardi S, Richards S, Rihl M, Rinnert K, Rives Molina V, Robbe P, Rodrigues A B, Rodrigues E, Rodriguez Lopez J A, Rodriguez Perez P, Rogozhnikov A, Roiser S, Rollings A, Romanovskiy V, Romero Vidal A, Ronayne J W, Rotondo M, Rudolph M S, Ruf T, Ruiz Valls P, Saborido Silva J J, Sadykhov E, Sagidova N, Saitta B, Salustino Guimaraes V, Sanchez Gonzalo D, Sanchez Mayordomo C, Sanmartin Sedes B, Santacesaria R, Santamarina Rios C, Santimaria M, Santovetti E, Sarti A, Satriano C, Satta A, Saunders D M, Savrina D, Schael S, Schellenberg M, Schiller M, Schindler H, Schlupp M, Schmelling M, Schmelzer T, Schmidt B, Schneider O, Schopper A, Schreiner H F, Schubert K, Schubiger M, Schune M-H, Schwemmer R, Sciascia B, Sciubba A, Semennikov A, Sergi A, Serra N, Serrano J, Sestini L, Seyfert P, Shapkin M, Shapoval I, Shcheglov Y, Shears T, Shekhtman L, Shevchenko V, Siddi B G, Silva Coutinho R, Silva de Oliveira L, Simi G, Simone S, Sirendi M, Skidmore N, Skwarnicki T, Smith E, Smith I T, Smith J, Smith M, Soares Lavra L, Sokoloff M D, Soler F J P, Souza De Paula B, Spaan B, Spradlin P, Sridharan S, Stagni F, Stahl M, Stahl S, Stefko P, Stefkova S, Steinkamp O, Stemmle S, Stenyakin O, Stevens H, Stoica S, Stone S, Storaci B, Stracka S, Stramaglia M E, Straticiuc M, Straumann U, Sun L, Sutcliffe W, Swientek K, Syropoulos V, Szczekowski M, Szumlak T, T'Jampens S, Tayduganov A, Tekampe T, Tellarini G, Teubert F, Thomas E, van Tilburg J, Tilley M J, Tisserand V, Tobin M, Tolk S, Tomassetti L, Tonelli D, Topp-Joergensen S, Toriello F, Tourinho Jadallah Aoude R, Tournefier E, Tourneur S, Trabelsi K, Traill M, Tran M T, Tresch M, Trisovic A, Tsaregorodtsev A, Tsopelas P, Tully A, Tuning N, Ukleja A, Ustyuzhanin A, Uwer U, Vacca C, Vagnoni V, Valassi A, Valat S, Valenti G, Vazquez Gomez R, Vazquez Regueiro P, Vecchi S, van Veghel M, Velthuis J J, Veltri M, Veneziano G, Venkateswaran A, Verlage T A, Vernet M, Vesterinen M, Viana Barbosa J V, Viaud B, Vieira D, Vieites Diaz M, Viemann H, Vilasis-Cardona X, Vitti M, Volkov V, Vollhardt A, Voneki B, Vorobyev A, Vorobyev V, Voß C, de Vries J A, Vázquez Sierra C, Waldi R, Wallace C, Wallace R, Walsh J, Wang J, Ward D R, Wark H M, Watson N K, Websdale D, Weiden A, Whitehead M, Wicht J, Wilkinson G, Wilkinson M, Williams M, Williams M P, Williams M, Williams T, Wilson F F, Wimberley J, Winn M A, Wishahi J, Wislicki W, Witek M, Wormser G, Wotton S A, Wraight K, Wyllie K, Xie Y, Xu Z, Yang Z, Yang Z, Yao Y, Yin H, Yu J, Yuan X, Yushchenko O, Zarebski K A, Zavertyaev M, Zhang L, Zhang Y, Zhelezov A, Zheng Y, Zhu X, Zhukov V, Zucchelli S
40European Organization for Nuclear Research (CERN), Geneva, Switzerland.
39Universidad de Santiago de Compostela, Santiago de Compostela, Spain.
Eur Phys J C Part Fields. 2017;77(10):678. doi: 10.1140/epjc/s10052-017-5230-x. Epub 2017 Oct 13.
A search for the decay is performed, based on a data sample of proton-proton collisions corresponding to an integrated luminosity of , collected by the LHCb experiment at centre-of-mass energies of 7 and 8 . The observed yield is consistent with the background-only hypothesis, yielding a limit on the branching fraction of at confidence level. This result improves the previous upper limit on the branching fraction by an order of magnitude.
基于大型强子对撞机底夸克实验（LHCb实验）在质心能量为7和8 TeV时收集的对应于积分亮度为 的质子-质子碰撞数据样本，对 衰变进行了搜索。观测到的产额与仅含本底的假设一致，在 置信水平下给出了分支比的上限。该结果将分支比的先前上限提高了一个数量级。
