Measurement of CP observables in B 0 → DK ∗0 with D →K + K −

Author:

,Aaij R.,Beteta C. Abellan,Adametz A.,Adeva B.,Adinolfi M.,Adrover C.,Affolder A.,Ajaltouni Z.,Albrecht J.,Alessio F.,Alexander M.,Ali S.,Alkhazov G.,Cartelle P. Alvarez,Alves A. A.,Amato S.,Amhis Y.,Anderlini L.,Anderson J.,Andreassen R.,Appleby R. B.,Gutierrez O. Aquines,Archilli F.,Artamonov A.,Artuso M.,Aslanides E.,Auriemma G.,Bachmann S.,Back J. J.,Baesso C.,Balagura V.,Baldini W.,Barlow R. J.,Barschel C.,Barsuk S.,Barter W.,Bates A.,Bauer Th.,Bay A.,Beddow J.,Bediaga I.,Belogurov S.,Belous K.,Belyaev I.,Ben-Haim E.,Benayoun M.,Bencivenni G.,Benson S.,Benton J.,Berezhnoy A.,Bernet R.,Bettler M.-O.,van Beuzekom M.,Bien A.,Bifani S.,Bird T.,Bizzeti A.,Bjørnstad P. M.,Blake T.,Blanc F.,Blanks C.,Blouw J.,Blusk S.,Bobrov A.,Bocci V.,Bondar A.,Bondar N.,Bonivento W.,Borghi S.,Borgia A.,Bowcock T. J. V.,Bowen E.,Bozzi C.,Brambach T.,van den Brand J.,Bressieux J.,Brett D.,Britsch M.,Britton T.,Brook N. H.,Brown H.,Büchler-Germann A.,Burducea I.,Bursche A.,Buytaert J.,Cadeddu S.,Callot O.,Calvi M.,Gomez M. Calvo,Camboni A.,Campana P.,Carbone A.,Carboni G.,Cardinale R.,Cardini A.,Carranza-Mejia H.,Carson L.,Akiba K. Carvalho,Casse G.,Cattaneo M.,Cauet Ch.,Charles M.,Charpentier Ph.,Chen P.,Chiapolini N.,Chrzaszcz M.,Ciba K.,Vidal X. Cid,Ciezarek G.,Clarke P. E. L.,Clemencic M.,Cliff H. V.,Closier J.,Coca C.,Coco V.,Cogan J.,Cogneras E.,Collins P.,Comerma-Montells A.,Contu A.,Cook A.,Coombes M.,Corti G.,Couturier B.,Cowan G. A.,Craik D.,Cunliffe S.,Currie R.,D’Ambrosio C.,David P.,David P. N. Y.,De Bonis I.,De Bruyn K.,De Capua S.,De Cian M.,De Miranda J. M.,De Paula L.,De Silva W.,De Simone P.,Decamp D.,Deckenhoff M.,Degaudenzi H.,Del Buono L.,Deplano C.,Derkach D.,Deschamps O.,Dettori F.,Di Canto A.,Dickens J.,Dijkstra H.,Batista P. Diniz,Dogaru M.,Bonal F. Domingo,Donleavy S.,Dordei F.,Suárez A. Dosil,Dossett D.,Dovbnya A.,Dupertuis F.,Dzhelyadin R.,Dziurda A.,Dzyuba A.,Easo S.,Egede U.,Egorychev V.,Eidelman S.,van Eijk D.,Eisenhardt S.,Eitschberger U.,Ekelhof R.,Eklund L.,El Rifai I.,Elsasser Ch.,Elsby D.,Falabella A.,Färber C.,Fardell G.,Farinelli C.,Farry S.,Fave V.,Ferguson D.,Albor V. Fernandez,Rodrigues F. Ferreira,Ferro-Luzzi M.,Filippov S.,Fitzpatrick C.,Fontana M.,Fontanelli F.,Forty R.,Francisco O.,Frank M.,Frei C.,Frosini M.,Furcas S.,Furfaro E.,Torreira A. Gallas,Galli D.,Gandelman M.,Gandini P.,Gao Y.,Garofoli J.,Garosi P.,Tico J. Garra,Garrido L.,Gaspar C.,Gauld R.,Gersabeck E.,Gersabeck M.,Gershon T.,Ghez Ph.,Gibson V.,Gligorov V. V.,Göbel C.,Golubkov D.,Golutvin A.,Gomes A.,Gordon H.,Gándara M. Grabalosa,Diaz R. Graciani,Cardoso L. A. Granado,Graugés E.,Graziani G.,Grecu A.,Greening E.,Gregson S.,Grünberg O.,Gui B.,Gushchin E.,Guz Yu.,Gys T.,Hadjivasiliou C.,Haefeli G.,Haen C.,Haines S. C.,Hall S.,Hampson T.,Hansmann-Menzemer S.,Harnew N.,Harnew S. T.,Harrison J.,Harrison P. F.,Hartmann T.,He J.,Heijne V.,Hennessy K.,Henrard P.,Morata J. A. Hernando,van Herwijnen E.,Hicks E.,Hill D.,Hoballah M.,Hombach C.,Hopchev P.,Hulsbergen W.,Hunt P.,Huse T.,Hussain N.,Hutchcroft D.,Hynds D.,Iakovenko V.,Ilten P.,Imong J.,Jacobsson R.,Jaeger A.,Jans E.,Jansen F.,Jaton P.,Jing F.,John M.,Johnson D.,Jones C. R.,Jost B.,Kaballo M.,Kandybei S.,Karacson M.,Karbach T. M.,Kenyon I. R.,Kerzel U.,Ketel T.,Keune A.,Khanji B.,Kochebina O.,Komarov I.,Koopman R. F.,Koppenburg P.,Korolev M.,Kozlinskiy A.,Kravchuk L.,Kreplin K.,Kreps M.,Krocker G.,Krokovny P.,Kruse F.,Kucharczyk M.,Kudryavtsev V.,Kvaratskheliya T.,La Thi V. N.,Lacarrere D.,Lafferty G.,Lai A.,Lambert D.,Lambert R. W.,Lanciotti E.,Lanfranchi G.,Langenbruch C.,Latham T.,Lazzeroni C.,Le Gac R.,van Leerdam J.,Lees J.-P.,Lefèvre R.,Leflat A.,Lefrançois J.,Leroy O.,Li Y.,Gioi L. Li,Liles M.,Lindner R.,Linn C.,Liu B.,Liu G.,von Loeben J.,Lopes J. H.,Asamar E. Lopez,Lopez-March N.,Lu H.,Luisier J.,Luo H.,Raighne A. Mac,Machefert F.,Machikhiliyan I. V.,Maciuc F.,Maev O.,Malde S.,Manca G.,Mancinelli G.,Mangiafave N.,Marconi U.,Märki R.,Marks J.,Martellotti G.,Martens A.,Martin L.,Sánchez A. Martín,Martinelli M.,Santos D. Martinez,Tostes D. Martins,Massafferri A.,Matev R.,Mathe Z.,Matteuzzi C.,Matveev M.,Maurice E.,Mazurov A.,McCarthy J.,McNulty R.,Meadows B.,Meier F.,Meissner M.,Merk M.,Milanes D. A.,Minard M.-N.,Rodriguez J. Molina,Monteil S.,Moran D.,Morawski P.,Mountain R.,Mous I.,Muheim F.,Müller K.,Muresan R.,Muryn B.,Muster B.,Naik P.,Nakada T.,Nandakumar R.,Nasteva I.,Needham M.,Neufeld N.,Nguyen A. D.,Nguyen T. D.,Nguyen-Mau C.,Nicol M.,Niess V.,Niet R.,Nikitin N.,Nikodem T.,Nisar S.,Nomerotski A.,Novoselov A.,Oblakowska-Mucha A.,Obraztsov V.,Oggero S.,Ogilvy S.,Okhrimenko O.,Oldeman R.,Orlandea M.,Goicochea J. M. Otalora,Owen P.,Pal B. K.,Palano A.,Palutan M.,Panman J.,Papanestis A.,Pappagallo M.,Parkes C.,Parkinson C. J.,Passaleva G.,Patel G. D.,Patel M.,Patrick G. N.,Patrignani C.,Pavel-Nicorescu C.,Alvarez A. Pazos,Pellegrino A.,Penso G.,Altarelli M. Pepe,Perazzini S.,Perego D. L.,Trigo E. Perez,Yzquierdo A. Pérez-Calero,Perret P.,Perrin-Terrin M.,Pessina G.,Petridis K.,Petrolini A.,Phan A.,Olloqui E. Picatoste,Pietrzyk B.,Pilař T.,Pinci D.,Playfer S.,Casasus M. Plo,Polci F.,Polok G.,Poluektov A.,Polycarpo E.,Popov D.,Popovici B.,Potterat C.,Powell A.,Prisciandaro J.,Pugatch V.,Navarro A. Puig,Qian W.,Rademacker J. H.,Rakotomiaramanana B.,Rangel M. S.,Raniuk I.,Rauschmayr N.,Raven G.,Redford S.,Reid M. M.,dos Reis A. C.,Ricciardi S.,Richards A.,Rinnert K.,Molina V. Rives,Romero D. A. Roa,Robbe P.,Rodrigues E.,Perez P. Rodriguez,Rogers G. J.,Roiser S.,Romanovsky V.,Vidal A. Romero,Rouvinet J.,Ruf T.,Ruiz H.,Sabatino G.,Silva J. J. Saborido,Sagidova N.,Sail P.,Saitta B.,Salzmann C.,Sedes B. Sanmartin,Sannino M.,Santacesaria R.,Rios C. Santamarina,Santovetti E.,Sapunov M.,Sarti A.,Satriano C.,Satta A.,Savrie M.,Savrina D.,Schaack P.,Schiller M.,Schindler H.,Schleich S.,Schlupp M.,Schmelling M.,Schmidt B.,Schneider O.,Schopper A.,Schune M.-H.,Schwemmer R.,Sciascia B.,Sciubba A.,Seco M.,Semennikov A.,Senderowska K.,Sepp I.,Serra N.,Serrano J.,Seyfert P.,Shapkin M.,Shapoval I.,Shatalov P.,Shcheglov Y.,Shears T.,Shekhtman L.,Shevchenko O.,Shevchenko V.,Shires A.,Coutinho R. Silva,Skwarnicki T.,Smith N. A.,Smith E.,Smith M.,Sobczak K.,Sokoloff M. D.,Soler F. J. P.,Soomro F.,Souza D.,De Paula B. Souza,Spaan B.,Sparkes A.,Spradlin P.,Stagni F.,Stahl S.,Steinkamp O.,Stoica S.,Stone S.,Storaci B.,Straticiuc M.,Straumann U.,Subbiah V. K.,Swientek S.,Syropoulos V.,Szczekowski M.,Szczypka P.,Szumlak T.,T’Jampens S.,Teklishyn M.,Teodorescu E.,Teubert F.,Thomas C.,Thomas E.,van Tilburg J.,Tisserand V.,Tobin M.,Tolk S.,Tonelli D.,Topp-Joergensen S.,Torr N.,Tournefier E.,Tourneur S.,Tran M. T.,Tresch M.,Tsaregorodtsev A.,Tsopelas P.,Tuning N.,Garcia M. Ubeda,Ukleja A.,Urner D.,Uwer U.,Vagnoni V.,Valenti G.,Gomez R. Vazquez,Regueiro P. Vazquez,Vecchi S.,Velthuis J. J.,Veltri M.,Veneziano G.,Vesterinen M.,Viaud B.,Vieira D.,Vilasis-Cardona X.,Vollhardt A.,Volyanskyy D.,Voong D.,Vorobyev A.,Vorobyev V.,Voß C.,Voss H.,Waldi R.,Wallace R.,Wandernoth S.,Wang J.,Ward D. R.,Watson N. K.,Webber A. D.,Websdale D.,Whitehead M.,Wicht J.,Wiechczynski J.,Wiedner D.,Wiggers L.,Wilkinson G.,Williams M. P.,Williams M.,Wilson F. F.,Wishahi J.,Witek M.,Witzeling W.,Wotton S. A.,Wright S.,Wu S.,Wyllie K.,Xie Y.,Xing F.,Xing Z.,Yang Z.,Young R.,Yuan X.,Yushchenko O.,Zangoli M.,Zavertyaev M.,Zhang F.,Zhang L.,Zhang W. C.,Zhang Y.,Zhelezov A.,Zhokhov A.,Zhong L.,Zvyagin A.

Abstract

Abstract The decay B 0DK *0 and the charge conjugate mode are studied using 1.0 fb−1 of pp collision data collected by the LHCb experiment at $ \sqrt{s}=7 $ TeV in 2011. The CP asymmetry between the B 0DK *0 and the $ {{\overline{B}}^0}\to D{{\overline{K}}^{*0 }} $ decay rates, with the neutral D meson in the CP-even final state K + K , is found to be $ \mathcal{A}_d^{KK }=-0.45\pm 0.23\pm 0.02, $ where the first uncertainty is statistical and the second is systematic. In addition, favoured B 0DK *0 decays are reconstructed with the D meson in the non-CP eigenstate K +π. The ratio of the B-flavour averaged decay rates in D decays to CP and non-CP eigenstates is measured to be $ \mathcal{R}_d^{KK }=1.36_{-0.32}^{+0.37}\pm 0.07, $ where the ratio of the branching fractions of D 0K π+ to D 0K + K decays is included as multiplicative factor. The CP asymmetries measured with two control channels, the favoured B 0DK *0 decay with DK +π and the $ \overline{B}_s^0\to D{K^{*0 }} $ decay with DK + K , arealsoreported.

Publisher

Springer Science and Business Media LLC

Subject

Nuclear and High Energy Physics

Cited by 7 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Heavy flavour physics at the LHC;Comptes Rendus Physique;2015-05

2. Measurement ofCPviolation parameters inB0→DK*0decays;Physical Review D;2014-12-02

3. CKM angle γ measurements at LHCb;Journal of Physics: Conference Series;2014-11-26

4. Dalitz plot analysis ofBs0→D¯0K−π+decays;Physical Review D;2014-10-14

5. A study of CP violation in B±→DK± and B±→Dπ± decays with DKS0K±π final states;Physics Letters B;2014-06

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