First Observation of B + → D S + K + K − Decays and a Search for B + → D S + Φ Decays
The LHCb collaboration, R. Aaij, B. Adeva, M. Adinolfi, Z. Ajaltouni, S. Akar, J. Albrecht, F. Alessio, M. Alexander, A. Alfonso Albero, S. Ali, G. Alkhazov, P. Alvarez Cartelle,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,M. Atzeni, G. Auriemma,M. Baalouch,I. Babuschkin,S. Bachmann,J. J. Back,A. Badalov,C. Baesso,S. Baker,V. Balagura,W. Baldini,A. Baranov,R. J. Barlow,C. Barschel,S. Barsuk,W. Barter,F. Baryshnikov,V. Batozskaya,V. Battista,A. Bay,L. Beaucourt,J. Beddow,F. Bedeschi,I. Bediaga,A. Beiter,L. J. Bel,N. Beliy,V. Bellee,N. Belloli,K. Belous,I. Belyaev,E. Ben-Haim, G. Bencivenni,S. Benson,S. Beranek,A. Berezhnoy,R. Bernet, D. Berninghoff,E. Bertholet,A. Bertolin,C. Betancourt,F. Betti,M.-O. Bettler,M. van Beuzekom,Ia. Bezshyiko,S. Bifani,P. Billoir,A. Birnkraut,A. Bizzeti,M. Bjørn,T. Blake,F. Blanc,S. Blusk,V. Bocci,T. Boettcher,A. Bondar,N. Bondar,I. Bordyuzhin,S. Borghi,M. Borisyak,M. Borsato,F. Bossu,M. Boubdir,T. J. V. Bowcock,E. Bowen,C. Bozzi,S. Braun,T. Britton,J. Brodzicka,D. Brundu,E. Buchanan,C. Burr,A. Bursche,J. Buytaert,W. Byczynski,S. Cadeddu,H. Cai,R. Calabrese,R. Calladine,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,M. Cattaneo,G. Cavallero, R. Cenci,D. Chamont,M. G. Chapman,M. Charles,Ph. Charpentier,G. Chatzikonstantinidis,M. Chefdeville,S. Chen,S. F. Cheung,S.-G. Chitic,V. Chobanova,M. Chrzaszcz,A. Chubykin,P. Ciambrone,X. Cid Vidal,G. Ciezarek,P. E. L. Clarke,M. Clemencic,H. V. Cliff,J. Closier,J. Cogan,E. Cogneras,V. Cogoni,L. Cojocariu,P. Collins,T. Colombo,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,R. Currie,C. D’Ambrosio,F. Da Cunha Marinho,E. Dall’Occo,J. Dalseno,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,L. Del Buono,H.-P. Dembinski,M. Demmer,A. Dendek,D. Derkach,O. Deschamps,F. Dettori,B. Dey,A. Di Canto,P. Di Nezza,H. Dijkstra,F. Dordei,M. Dorigo,A. Dosil Suárez,L. Douglas,A. Dovbnya,K. Dreimanis,L. Dufour,G. Dujany, P. Durante,R. Dzhelyadin,M. Dziewiecki,A. Dziurda,A. Dzyuba,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,D. Fazzini,L. Federici,D. Ferguson,G. Fernandez,P. Fernandez Declara,A. Fernandez Prieto,F. Ferrari,F. Ferreira Rodrigues,M. Ferro-Luzzi,S. Filippov,R. A. Fini,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,W. Funk,E. Furfaro, C. Färber,E. Gabriel,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. Gianí,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,J. P. Grabowski,R. Graciani Diaz,L. A. Granado Cardoso,E. Graugés,E. Graverini,G. Graziani,A. Grecu,R. Greim,P. Griffith,L. Grillo,L. Gruber,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, B. Hamilton,X. Han,T. H. Hancock,S. Hansmann-Menzemer,N. Harnew,S. T. Harnew,C. Hasse,M. Hatch,J. He,M. Hecker,K. Heinicke,A. Heister,K. Hennessy,P. Henrard,L. Henry,E. van Herwijnen, M. Heß,A. Hicheur,D. Hill,C. Hombach,P. H. Hopchev,W. Hu,Z. C. Huard,W. Hulsbergen,T. Humair,M. Hushchyn,D. Hutchcroft, P. Ibis,M. Idzik,P. Ilten,R. Jacobsson,J. Jalocha,E. Jans, A. Jawahery,F. Jiang,M. John,D. Johnson,C. R. Jones,C. Joram,B. Jost,N. Jurik,S. Kandybei,M. Karacson,J. M. Kariuki,S. Karodia, N. Kazeev, M. Kecke, F. Keizer,M. Kelsey,M. Kenzie,T. Ketel,E. Khairullin,B. Khanji,C. Khurewathanakul, T. Kirn,S. Klaver,K. Klimaszewski,T. Klimkovich,S. Koliiev,M. Kolpin, R. Kopecna,P. Koppenburg,A. Kosmyntseva,S. Kotriakhova,M. Kozeiha,L. Kravchuk,M. Kreps, F. Kress, P. Krokovny,F. Kruse,W. Krzemien,W. Kucewicz,M. Kucharczyk,V. Kudryavtsev,A. K. Kuonen,T. Kvaratskheliya,D. Lacarrere,G. Lafferty, A. Lai,G. Lanfranchi,C. Langenbruch,T. Latham, C. Lazzeroni,R. Le Gac, A. Leflat, J. Lefrançois,R. Lefèvre,F. Lemaitre,E. Lemos Cid,O. Leroy,T. Lesiak, B. Leverington,P.-R. Li, T. Li, Y. Li, Z. Li,T. Likhomanenko,R. Lindner,F. Lionetto,V. Lisovskyi,X. Liu,D. Loh,A. Loi,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,V. Macko, P. Mackowiak, S. Maddrell-Mander,O. Maev,K. Maguire, D. Maisuzenko,M. W. Majewski,S. Malde, B. Malecki,A. Malinin, T. Maltsev, G. Manca,G. Mancinelli,D. Marangotto,J. Maratas,J. F. Marchand,U. Marconi,C. Marin Benito,M. Marinangeli, P. Marino,J. Marks,G. Martellotti, M. Martin,M. Martinelli,D. Martinez Santos,F. Martinez Vidal,L. M. Massacrier,A. Massafferri,R. Matev, A. Mathad,Z. Mathe,C. Matteuzzi,A. Mauri,E. Maurice,B. Maurin,A. Mazurov,M. McCann, A. McNab,R. McNulty,J. V. Mead,B. Meadows,C. Meaux,F. Meier,N. Meinert,D. Melnychuk, M. Merk,A. Merli,E. Michielin,D. A. Milanes,E. Millard, M.-N. Minard, L. Minzoni,D. S. Mitzel,A. Mogini,J. Molina Rodriguez,T. Mombächer,I. A. Monroy,S. Monteil,M. Morandin,M. J. Morello,O. Morgunova,J. Moron,A. B. Morris,R. Mountain,F. Muheim,M. Mulder,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,T. D. Nguyen,C. Nguyen-Mau,S. Nieswand,R. Niet,N. Nikitin,T. Nikodem,A. Nogay,D. P. O’Hanlon,A. Oblakowska-Mucha,V. Obraztsov,S. Ogilvy,R. Oldeman,C. J. G. Onderwater,A. Ossowska,J. M. Otalora Goicochea,P. Owen,A. Oyanguren, P. R. Pais, A. Palano, M. Palutan,A. Papanestis,M. Pappagallo,L. L. Pappalardo, W. Parker,C. Parkes,G. Passaleva,A. Pastore,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,F. Pisani,A. Pistone, A. Piucci,V. Placinta,S. Playfer,M. Plo Casasus,F. Polci,M. Poli Lener,A. Poluektov, I. Polyakov,E. Polycarpo,G. J. Pomery,S. Ponce,A. Popov,D. Popov,S. Poslavskii,C. Potterat,E. Price,J. Prisciandaro,C. Prouve,V. Pugatch,A. Puig Navarro, H. Pullen,G. Punzi,W. Qian, R. Quagliani, B. Quintana,B. Rachwal, J. H. Rademacker,M. Rama,M. Ramos Pernas,M. S. Rangel, I. Raniuk,F. Ratnikov,G. Raven,M. Ravonel Salzgeber,M. Reboud, F. Redi,S. Reichert,A. C. dos Reis,C. Remon Alepuz, V. Renaudin, S. Ricciardi,S. 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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,C. Weisser,M. Whitehead, J. Wicht,G. Wilkinson,M. Wilkinson,M. Williams, M. P. Williams, T. Williams, F. F. Wilson, J. Wimberley, M. Winn, J. Wishahi, W. Wislicki, M. Witek, G. Wormser, S. A. Wotton, K. Wraight, K. Wyllie, Y. Xie, M. Xu, Z. Xu, Z. Yang, Y. Yao, H. Yin, J. Yu, X. Yuan, O. Yushchenko, K. A. Zarebski, M. Zavertyaev, L. Zhang, Y. Zhang, A. Zhelezov, Y. Zheng, X. Zhu, V. Zhukov, J. B. Zonneveld, S. Zucchelli
The Journal of high energy physics/The journal of high energy physics（2018）
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摘要
A search for B+ → D s + K+K− decays is performed using pp collision data corresponding to an integrated luminosity of 4.8 fb−1, collected at centre-of-mass energies of 7, 8 and 13 TeV with the LHCb experiment. A significant signal is observed for the first time and the branching fraction is determined to be
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关键词
B physics,Branching fraction,Hadron-Hadron scattering (experiments),Rare decay
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