First observation of CP violation in the decays of B(s)0 mesons.

  title={First observation of CP violation in the decays of B(s)0 mesons.},
  author={R. Aaij and C. Abell{\'a}n Beteta and B. Adeva and M. Adinolfi and C. Adrover and A. Affolder and Z. Ajaltouni and J. Albrecht and F. Alessio and M. Alexander and S. Ali and G. Alkhazov and P. Alvarez Cartelle and A. Alves and S. Amato and S. Amerio and Y. Amhis and L. Anderlini and J. Anderson and R. Andreassen and R. Appleby and O. Aquines Gutierrez and F. Archilli and A. Artamonov and M. Artuso and E. Aslanides and G. Auriemma and S. Bachmann and J. Back and C. Baesso and V. Balagura and W. Baldini and R. Barlow and C. Barschel and S. Barsuk and W. Barter and T. Bauer and A. Bay and J. Beddow and F. Bedeschi and I. Bediaga and S. Belogurov and K. Belous and I. Belyaev and E. Ben-Haim and G. Bencivenni and S. Benson and J. Benton and A. Berezhnoy and R. Bernet and M. Bettler and M. van Beuzekom and A. Bie{\~n} and S. Bifani and T. Bird and A. Bizzeti and P. Bj{\o}rnstad and T. Blake and F. Blanc and J. Blouw and S. Blusk and V. Bocci and A. Bondar and N. Bondar and W. Bonivento and S. Borghi and A. Borgia and T. Bowcock and E. Bowen and C. Bozzi and T. Brambach and J. V. D. van den Brand and J. Bressieux and D. Brett and M. Britsch and T. Britton and N. Brook and H. Brown and I. Burducea and A. Bursche and G. Busetto and J. Buytaert and S. Cadeddu and O. Callot and M. Calvi and M. Calvo Gomez and A. Camboni and P. Campana and D. C. C{\'a}mpora P{\'e}rez and A. Carbone and G. Carboni and R. Cardinale and A. Cardini and H. Carranza-Mejia and L. Carson and K. Carvalho Akiba and G. Casse and L. Castillo Garcia and M. Cattaneo and C. Cauet and M. Charles and P. Charpentier and P. Chen and N. Chiapolini and M. Chrząszcz and K. Ciba and X. Cid Vidal and G. Ciezarek and P. Clarke and M. Clemencic and H. V. Cliff and J. Closier and C. Coca and V. Coco and J. Cogan and E. Cogneras and P. Collins and A. Comerma-Montells and A. Contu and A. Cook and M. Coombes and S. Coquereau and G. Corti and B. Couturier and G. Cowan and D. Craik and S. Cunliffe and R. Currie and C. D'Ambrosio and P. David and A. Davis and I. De Bonis and K. De Bruyn and S. de Capua and M. De Cian and J. de Miranda and L. de Paula and W. De Silva and P. de Simone and D. Decamp and M. Deckenhoff and L. Del Buono and N. D{\'e}l{\'e}age and D. Derkach and O. Deschamps and F. Dettori and A. Di Canto and F. Di Ruscio and H. Dijkstra and M. Dogaru and S. Donleavy and F. Dordei and A. Dosil Su{\'a}rez and D. Dossett and A. Dovbnya and F. Dupertuis and R. Dzhelyadin and A. Dziurda and A. Dzyuba and S. Easo and U. Egede and V. Egorychev and S. Eidelman and D. van Eijk and S. Eisenhardt and U. Eitschberger and R. Ekelhof and L. Eklund and I. El Rifai and C. Elsasser and D. Elsby and A. Falabella and C. Faerber and G. Fardell and C. Farinelli and S. Farry and V. Fave and D. Ferguson and V. Fernandez Albor and F. Ferreira Rodrigues and M. Ferro-Luzzi and S. Filippov and M. Fiore and C. Fitzpatrick and M. Fontana and F. Fontanelli and R. Forty and O. Francisco and M. Frank and C. Frei and M. Frosini and S. Furcas and E. Furfaro and A. Gallas Torreira and D. Galli and M. Gandelman and P. Gandini and Y. Gao and J. Garofoli and P. Garosi and J. Garra Tico and L. Garrido and C. Gaspar and R. Gauld and E. Gersabeck and M. Gersabeck and T. Gershon and P. Ghez and V. Gibson and V. Gligorov and C. G{\"o}bel and D. Golubkov and A. Golutvin and A. Gomes and H. Gordon and M. Grabalosa G{\'a}ndara and R. Graciani Diaz and L. A. Granado Cardoso and E. Grauges and G. Graziani and A. Grecu and E. Greening and S. Gregson and P. Griffith and O. Gr{\"u}nberg and B. Gui and E. Gushchin and Y. Guz and T. Gys and C. Hadjivasiliou and G. Haefeli and C. Haen and S. Haines and S. Hall and T. Hampson and S. Hansmann-Menzemer and N. Harnew and S. Harnew and J. Harrison and T. Hartmann and J. He and V. Heijne and K. Hennessy and P. Henrard and J. A. Hernando Morata and E. van Herwijnen and E. Hicks and D. Hill and M. Hoballah and P. H. Hopchev and P. Hopchev and W. Hulsbergen and P. Hunt and T. Huse and N. Hussain and D. Hutchcroft and D. Hynds and V. Iakovenko and M. Idzik and P. Ilten and R. Jacobsson and A. Jaeger and E. Jans and P. Jaton and A. Jawahery and F. Jing and M. John and D. Johnson and C. Jones and C. Joram and B. Jost and M. Kaballo and S. Kandybei and M. Karacson and T. Karbach and I. R. Kenyon and U. Kerzel and T. Ketel and A. Keune and B. Khanji and O. Kochebina and I. Komarov and R. Koopman and P. Koppenburg and M. Korolev and A. Kozlinskiy and L. Kravchuk and K. Kreplin and M. Kreps and G. Krocker and P. Krokovny and F. Kruse and M. Kucharczyk and V. Kudryavtsev and T. Kvaratskheliya and V. N. La Thi and D. Lacarr{\`e}re and G. Lafferty and A. Lai and D. Lambert and R. Lambert and E. Lanciotti and G. Lanfranchi and C. Langenbruch and T. Latham and C. Lazzeroni and R. Le Gac and J. van Leerdam and J. Lees and R. Lef{\`e}vre and A. Leflat and J. Lefrançois and S. Leo and O. Leroy and T. Lesiak and B. Leverington and Y. Li and L. Li Gioi and M. Liles and R. Lindner and C. Linn and B. Liu and G. Liu and S. Lohn and I. Longstaff and J. Lopes and E. Lopez Asamar and N. Lopez-march and H. Lu and D. Lucchesi and J. Luisier and H. Luo and F. Machefert and I. V. Machikhiliyan and F. Maciuc and O. Maev and S. Malde and G. Manca and G. Mancinelli and U. Marconi and R. M{\"a}rki and J. Marks and G. Martellotti and A. Martens and L. Martin and A. Mart{\'i}n S{\'a}nchez and M. Martinelli and D. Mart{\'i}nez Santos and D. Martins Tostes and A. Massafferri and R. Matev and Z. M{\'a}th{\'e} and C. Matteuzzi and E. Maurice and A. Mazurov and J. P. McCarthy and A. Mcnab and R. Mcnulty and B. Meadows and F. Meier and M. Meissner and M. Merk and D. A. Milanes and M. Minard and J. Molina Rodriguez and S. Monteil and D. Moran and P. Morawski and M. Morello and R. Mountain and I. Mous and F. Muheim and K. M{\"u}ller and R. Muresan and B. Muryn and B. Muster and P. Naik and T. Nakada and R. Nandakumar and I. Nasteva and M. Needham and N. Neufeld and A. D. Nguyen and T. Nguyen and C. Nguyen-Mau and M. Nicol and V. Niess and R. Niet and N. Nikitin and T. Nikodem and A. Nomerotski and A. Novoselov and A. Oblakowska-Mucha and V. Obraztsov and S. Oggero and S. Ogilvy and O. Okhrimenko and R. Oldeman and M. Orlandea and J. M. Otalora Goicochea and P. Owen and A. Oyanguren and B. Pal and A. Palano and M. Palutan and J. Panman and A. Papanestis and M. Pappagallo and C. Parkes and C. J. Parkinson and G. Passaleva and G. D. Patel and M. Patel and G. Patrick and C. Patrignani and C. Pavel-Nicorescu and A. Pazos Alvarez and A. Pellegrino and G. Penso and M. Pepe Altarelli and S. Perazzini and D. Perego and E. Perez Trigo and A. P{\'e}rez-Calero Yzquierdo and P. Perret and M. Perrin-terrin and G. Pessina and K. Petridis and A. Petrolini and A. Phan and E. Picatoste Olloqui and B. Pietrzyk and T. Pilar and D. Pinci and S. Playfer and M. Plo Casasus and F. Polci and G. Polok and A. Poluektov and E. Polycarpo and A. Popov and D. Popov and B. Popovici and C. Potterat and A. Powell and J. Prisciandaro and V. Pugatch and A. Puig Navarro and G. Punzi and W. Qian and J. Rademacker and B. Rakotomiaramanana and M. Rangel and I. Raniuk and N. Rauschmayr and G. Raven and S. Redford and M. Reid and A. C. dos Reis and S. Ricciardi and A. Richards and K. Rinnert and V. Rives Molina and D. A. Roa Romero and P. Robbe and E. Rodrigues and P. Rodr{\'i}guez P{\'e}rez and S. Roiser and V. Romanovsky and A. Romero Vidal and J. Rouvinet and T. Ruf and F. Ruffini and H. Ruiz and P. Ruiz Valls and G. Sabatino and J. J. Saborido Silva and N. Sagidova and P. Sail and B. Saitta and V. Salustino Guimaraes and C. Salzmann and B. Sanmartin Sedes and M. Sannino and R. Santacesaria and C. Santamarina Rios and E. Santovetti and M. Sapunov and A. Sarti and C. Satriano and A. Satta and M. Savri{\'e} and D. Savrina and P. Schaack and M. Schiller and H. Schindler and M. Schlupp and M. Schmelling and B. Schmidt},
  journal={Physical review letters},
  volume={110 22},
  • R. Aaij, C. Abellán Beteta, +497 authors B. Schmidt
  • Published 2013
  • Physics, Medicine
  • Physical review letters
  • Using pp collision data corresponding to an integrated luminosity of 1.0 fb(-1) and collected by LHCb in 2011 at a center-of-mass energy of 7 TeV, we report the measurement of direct CP violation in B(s)(0)→K(-)π(+) decays, A(CP)(B(s)(0)→K(-)π(+)=0.27±0.04 (stat)±0.01 (syst), with significance exceeding 5 standard deviations. This is the first observation of CP violation in the decays of B(s)(0) mesons. Furthermore, we provide an improved determination of direct CP violation in B(0)→K… CONTINUE READING
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