First measurement of the differential branching fraction and CP asymmetry of the B ± → π ± μ + μ − decay
R. Aaij,B. Adeva,M. Adinolfi,A. Affolder,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,J. Anderson,G. Andreassi,M. Andreotti,J. E. Andrews,R. B. Appleby,O. Aquines Gutierrez,F. Archilli,P. d’Argent,A. Artamonov,M. Artuso,E. Aslanides,G. Auriemma,M. Baalouch,S. Bachmann,J. J. Back,A. Badalov,C. Baesso,W. Baldini,R. J. Barlow,C. Barschel,S. Barsuk,W. Barter,V. Batozskaya,V. Battista,A. Bay,L. Beaucourt,J. Beddow,F. Bedeschi,I. Bediaga,L. J. Bel,V. Bellee,N. Belloli,I. Belyaev,E. Ben-Haim,G. Bencivenni,S. Benson,J. Benton,A. Berezhnoy,R. Bernet,A. Bertolin,M.-O. Bettler,M. van Beuzekom,A. Bien,S. Bifani,P. Billoir,T. Bird,A. Birnkraut,A. Bizzeti,T. Blake,F. Blanc,J. Blouw,S. Blusk,V. Bocci,A. Bondar,N. Bondar,W. Bonivento,S. Borghi,M. Borsato,T. J. V. Bowcock,E. Bowen,C. Bozzi,S. Braun,M. Britsch,T. Britton,J. Brodzicka,N. H. Brook,E. Buchanan,A. Bursche,J. Buytaert,S. Cadeddu,R. Calabrese,M. Calvi,M. Calvo Gomez,P. Campana,D. 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,M. Chefdeville,S. Chen,S.-F. Cheung,N. Chiapolini,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,M. Coombes,S. Coquereau,G. Corti,M. Corvo,B. Couturier,G. A. Cowan,D. C. Craik,A. Crocombe,M. Cruz Torres,S. Cunliffe,R. Currie,C. D’Ambrosio,E. Dall’Occo,J. Dalseno,P. N. Y. David,A. Davis,K. De Bruyn,S. De Capua,M. De Cian,J. M. De Miranda,L. De Paula,P. De Simone,C.-T. Dean,D. Decamp,M. Deckenhoff,L. Del Buono,N. Déléage,M. Demmer,D. Derkach,O. Deschamps,F. Dettori,B. Dey,A. Di Canto,F. Di Ruscio,H. Dijkstra,S. Donleavy,F. Dordei,M. Dorigo,A. Dosil Suárez,D. Dossett,A. Dovbnya,K. Dreimanis,L. Dufour,G. Dujany,F. Dupertuis,P. Durante,R. Dzhelyadin,A. Dziurda,A. Dzyuba,S. Easo,U. Egede,V. Egorychev,S. Eidelman,S. Eisenhardt,U. Eitschberger,R. Ekelhof,L. Eklund,I. El Rifai,Ch. Elsasser,S. Ely,S. Esen,H. M. Evans,T. Evans,A. Falabella,C. Färber,N. Farley,S. Farry,R. Fay,D. Ferguson,V. Fernandez Albor,F. Ferrari,F. Ferreira Rodrigues,M. Ferro-Luzzi,S. Filippov,M. Fiore,M. Fiorini,M. Firlej,C. Fitzpatrick,T. Fiutowski,K. Fohl,P. Fol,M. Fontana,F. Fontanelli,R. Forty,O. Francisco,M. Frank,C. Frei,M. Frosini,J. Fu,E. Furfaro,A. Gallas Torreira,D. Galli,S. Gallorini,S. Gambetta,M. Gandelman,P. Gandini,Y. Gao,J. García Pardiñas,J. Garra Tico,L. Garrido,D. Gascon,C. Gaspar,R. Gauld,L. Gavardi,G. Gazzoni,D. Gerick,E. Gersabeck,M. Gersabeck,T. Gershon,Ph. Ghez,S. Gianì,V. Gibson,O. G. Girard,L. Giubega,V. V. Gligorov,C. Göbel,D. Golubkov,A. Golutvin,A. Gomes,C. Gotti,M. Grabalosa Gándara,R. Graciani Diaz,L. A. Granado Cardoso,E. Graugés,E. Graverini,G. Graziani,A. Grecu,E. Greening,S. Gregson,P. Griffith,L. Grillo,O. Grünberg,B. Gui,E. Gushchin,Yu. Guz,T. Gys,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,J. He,T. Head,V. Heijne,K. Hennessy,P. Henrard,L. Henry,E. van Herwijnen,M. Heß,A. Hicheur,D. Hill,M. Hoballah,C. Hombach,W. Hulsbergen,T. Humair,N. Hussain,D. Hutchcroft,D. Hynds,M. Idzik,P. Ilten,R. Jacobsson,A. Jaeger,J. Jalocha,E. Jans,A. Jawahery,F. Jing,M. John,D. Johnson,C. R. Jones,C. Joram,B. Jost,N. Jurik,S. Kandybei,W. Kanso,M. Karacson,T. M. Karbach,S. Karodia,M. Kecke,M. Kelsey,I. R. Kenyon,M. Kenzie,T. Ketel,B. Khanji,C. Khurewathanakul,S. Klaver,K. Klimaszewski,O. Kochebina,M. Kolpin,I. Komarov,R. F. Koopman,P. Koppenburg,M. Kozeiha,L. Kravchuk,K. Kreplin,M. Kreps,G. Krocker,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,D. Lambert,G. Lanfranchi,C. Langenbruch,B. Langhans,T. Latham,C. Lazzeroni,R. Le Gac,J. van Leerdam,J.-P. Lees,R. Lefèvre,A. Leflat,J. Lefrançois,E. Lemos Cid,O. Leroy,T. Lesiak,B. Leverington,Y. Li,T. Likhomanenko,M. Liles,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,F. Machefert,F. Maciuc,O. Maev,K. Maguire,S. Malde,A. Malinin,G. Manca,G. Mancinelli,P. Manning,A. Mapelli,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,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,E Michielin,D. A. Milanes,M.-N. Minard,D. S. Mitzel,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,D. Müller,J. Müller,K. Müller,V. Müller,M. Mussini,B. Muster,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,V. Niess,R. Niet,N. Nikitin,T. Nikodem,D. Ninci,A. Novoselov,D. P. O’Hanlon,A. Oblakowska-Mucha,V. Obraztsov,S. Ogilvy,O. Okhrimenko,R. Oldeman,C. J. G. Onderwater,B. Osorio Rodrigues,J. M. Otalora Goicochea,A. Otto,P. Owen,A. Oyanguren,A. Palano,F. Palombo,M. Palutan,J. Panman,A. Papanestis,M. Pappagallo,L. L. Pappalardo,C. Pappenheimer,C. Parkes,G. Passaleva,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,M. Petruzzo,E. Picatoste Olloqui,B. Pietrzyk,T. Pilař,D. Pinci,A. Pistone,A. Piucci,S. Playfer,M. Plo Casasus,T. Poikela,F. Polci,A. Poluektov,I. Polyakov,E. Polycarpo,A. Popov,D. Popov,B. Popovici,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. S. Rangel,I. Raniuk,N. Rauschmayr,G. Raven,F. Redi,S. Reichert,M. M. Reid,A. C. dos Reis,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,S. Roiser,V. Romanovsky,A. Romero Vidal,J. W. Ronayne,M. Rotondo,J. Rouvinet,T. Ruf,P. Ruiz Valls,J. J. Saborido Silva,N. Sagidova,P. Sail,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,M. Schiller,H. Schindler,M. Schlupp,M. Schmelling,T. Schmelzer,B. Schmidt,O. Schneider,A. Schopper,M. Schubiger,M.-H. Schune,R. Schwemmer,B. Sciascia,A. Sciubba,A. Semennikov,N. Serra,J. Serrano,L. Sestini,P. Seyfert,M. Shapkin,I. Shapoval,Y. Shcheglov,T. Shears,L. Shekhtman,V. Shevchenko,A. Shires,B. G. Siddi,R. Silva Coutinho,L. Silva de Oliveira,G. Simi,M. Sirendi,N. Skidmore,I. Skillicorn,T. Skwarnicki,E. Smith,E. Smith,I. T. Smith,J. Smith,M. Smith,H. Snoek,M. D. Sokoloff,F. J. P. Soler,F. Soomro,D. Souza,B. Souza De Paula,B. Spaan,P. Spradlin,S. Sridharan,F. Stagni,M. Stahl,S. Stahl,S. Stefkova,O. Steinkamp,O. Stenyakin,S. Stevenson,S. Stoica,S. Stone,B. Storaci,S. Stracka,M. Straticiuc,U. Straumann,L. Sun,W. Sutcliffe,K. Swientek,S. Swientek,V. Syropoulos,M. Szczekowski,P. Szczypka,T. Szumlak,S. T’Jampens,A. Tayduganov,T. Tekampe,M. Teklishyn,G. Tellarini,F. Teubert,C. Thomas,E. Thomas,J. van Tilburg,V. Tisserand,M. Tobin,J. Todd,S. Tolk,L. Tomassetti,D. Tonelli,S. Topp-Joergensen,N. Torr,E. Tournefier,S. Tourneur,K. Trabelsi,M. T. Tran,M. Tresch,A. Trisovic,A. Tsaregorodtsev,P. Tsopelas,N. Tuning,A. Ukleja,A. Ustyuzhanin,U. Uwer,C. Vacca,V. Vagnoni,G. Valenti,A. Vallier,R. Vazquez Gomez,P. Vazquez Regueiro,C. Vázquez Sierra,S. Vecchi,J. J. Velthuis,M. Veltri,G. Veneziano,M. Vesterinen,B. Viaud,D. Vieira,M. Vieites Diaz,X. Vilasis-Cardona,V. Volkov,A. Vollhardt,D. Volyanskyy,D. Voong,A. Vorobyev,V. Vorobyev,C. Voß,J. A. de Vries,R. Waldi,C. Wallace,R. Wallace,J. Walsh,S. Wandernoth,J. Wang,D. R. Ward,N. K. Watson,D. Websdale,A. Weiden,M. Whitehead,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,S. Wright,K. Wyllie,Y. Xie,Z. Xu,Z. Yang,J. Yu,X. Yuan,O. Yushchenko,M. Zangoli,M. Zavertyaev,L. Zhang,Y. Zhang,A. Zhelezov,A. Zhokhov,L. Zhong,S. Zucchelli
Journal of High Energy Physics（2015）
Cited 125|Views505
Abstract
The differential branching fraction with respect to the dimuon invariant mass squared, and the CP asymmetry of the B ± → π ± μ + μ − decay are measured for the first time. The CKM matrix elements | V td | and | V ts |, and the ratio | V td /V ts | are determined. The analysis is performed using proton-proton collision data corresponding to an integrated luminosity of 3.0 fb −1 , collected by the LHCb experiment at centre-of-mass energies of 7 and 8 TeV. The total branching fraction and CP asymmetry of B ± → π ± μ + μ − decays are measured to be [ ℬ(B^±→π^±μ^+μ^-)=(1.83± 0.24± 0.05)×10^-^8 and; 𝒜_CP(B^±→π^±μ^+μ^-)=-0.11± 0.12± 0.01, ] where the first uncertainties are statistical and the second are systematic. These are the most precise measurements of these observables to date, and they are compatible with the predictions of the Standard Model.
MoreTranslated text
Key words
cp violation,branching fraction
AI Read Science
Must-Reading Tree
Example
Generate MRT to find the research sequence of this paper
Chat Paper
Summary is being generated by the instructions you defined