Differential branching fraction and angular analysis of the decay $ B_s^0 $ → ϕμ + μ −

Author:

,Aaij R.,Abellan Beteta C.,Adeva B.,Adinolfi M.,Adrover C.,Affolder A.,Ajaltouni Z.,Albrecht J.,Alessio F.,Alexander M.,Ali S.,Alkhazov G.,Alvarez Cartelle P.,Alves A. A.,Amato S.,Amerio S.,Amhis Y.,Anderlini L.,Anderson J.,Andreassen R.,Appleby R. B.,Aquines Gutierrez O.,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.,Bauer Th.,Bay A.,Beddow J.,Bedeschi F.,Bediaga I.,Belogurov S.,Belous K.,Belyaev I.,Ben-Haim E.,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.,Blouw J.,Blusk S.,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.,Burducea I.,Bursche A.,Busetto G.,Buytaert J.,Cadeddu S.,Callot O.,Calvi M.,Calvo Gomez M.,Camboni A.,Campana P.,Campora Perez D.,Carbone A.,Carboni G.,Cardinale R.,Cardini A.,Carranza-Mejia H.,Carson L.,Carvalho Akiba K.,Casse G.,Castillo Garcia L.,Cattaneo M.,Cauet Ch.,Charles M.,Charpentier Ph.,Chen P.,Chiapolini N.,Chrzaszcz M.,Ciba K.,Cid Vidal X.,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.,Coquereau S.,Corti G.,Couturier B.,Cowan G. A.,Craik D. C.,Cunliffe S.,Currie R.,D’Ambrosio C.,David P.,David P. N. Y.,Davis A.,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.,Del Buono L.,Déléage N.,Derkach D.,Deschamps O.,Dettori F.,Di Canto A.,Di Ruscio F.,Dijkstra H.,Dogaru M.,Donleavy S.,Dordei F.,Dosil Suárez A.,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.,Fernandez Albor V.,Ferreira Rodrigues F.,Ferro-Luzzi M.,Filippov S.,Fiore M.,Fitzpatrick C.,Fontana M.,Fontanelli F.,Forty R.,Francisco O.,Frank M.,Frei C.,Frosini M.,Furcas S.,Furfaro E.,Gallas Torreira A.,Galli D.,Gandelman M.,Gandini P.,Gao Y.,Garofoli J.,Garosi P.,Garra Tico J.,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.,Grabalosa Gándara M.,Graciani Diaz R.,Granado Cardoso L. A.,Graugés E.,Graziani G.,Grecu A.,Greening E.,Gregson S.,Griffith P.,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.,Hartmann T.,He J.,Heijne V.,Hennessy K.,Henrard P.,Hernando Morata J. A.,van Herwijnen E.,Hicheur A.,Hicks E.,Hill D.,Hoballah M.,Holtrop M.,Hombach C.,Hopchev P.,Hulsbergen W.,Hunt P.,Huse T.,Hussain N.,Hutchcroft D.,Hynds D.,Iakovenko V.,Idzik M.,Ilten P.,Jacobsson R.,Jaeger A.,Jans E.,Jaton P.,Jawahery A.,Jing F.,John M.,Johnson D.,Jones C. R.,Joram C.,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.,Leo S.,Leroy O.,Lesiak T.,Leverington B.,Li Y.,Li Gioi L.,Liles M.,Lindner R.,Linn C.,Liu B.,Liu G.,Lohn S.,Longstaff I.,Lopes J. H.,Lopez Asamar E.,Lopez-March N.,Lu H.,Lucchesi D.,Luisier J.,Luo H.,Machefert F.,Machikhiliyan I. V.,Maciuc F.,Maev O.,Malde S.,Manca G.,Mancinelli G.,Marconi U.,Märki R.,Marks J.,Martellotti G.,Martens A.,Martin L.,Martín Sánchez A.,Martinelli M.,Martinez Santos D.,Martins Tostes D.,Massafferri A.,Matev R.,Mathe Z.,Matteuzzi C.,Maurice E.,Mazurov A.,Mc Skelly B.,McCarthy J.,McNab A.,McNulty R.,Meadows B.,Meier F.,Meissner M.,Merk M.,Milanes D. A.,Minard M.-N.,Molina Rodriguez J.,Monteil S.,Moran D.,Morawski P.,Morello M. J.,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.,Nomerotski A.,Novoselov A.,Oblakowska-Mucha A.,Obraztsov V.,Oggero S.,Ogilvy S.,Okhrimenko O.,Oldeman R.,Orlandea M.,Otalora Goicochea J. M.,Owen P.,Oyanguren A.,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.,Pazos Alvarez A.,Pellegrino A.,Penso G.,Pepe Altarelli M.,Perazzini S.,Perego D. L.,Perez Trigo E.,Pérez-Calero Yzquierdo A.,Perret P.,Perrin-Terrin M.,Pessina G.,Petridis K.,Petrolini A.,Phan A.,Picatoste Olloqui E.,Pietrzyk B.,Pilař T.,Pinci D.,Playfer S.,Plo Casasus M.,Polci F.,Polok G.,Poluektov A.,Polycarpo E.,Popov A.,Popov D.,Popovici B.,Potterat C.,Powell A.,Prisciandaro J.,Pritchard A.,Prouve C.,Pugatch V.,Puig Navarro A.,Punzi G.,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.,Rives Molina V.,Roa Romero D. A.,Robbe P.,Rodrigues E.,Rodriguez Perez P.,Roiser S.,Romanovsky V.,Romero Vidal A.,Rouvinet J.,Ruf T.,Ruffini F.,Ruiz H.,Ruiz Valls P.,Sabatino G.,Saborido Silva J. J.,Sagidova N.,Sail P.,Saitta B.,Salustino Guimaraes V.,Salzmann C.,Sanmartin Sedes B.,Sannino M.,Santacesaria R.,Santamarina Rios C.,Santovetti E.,Sapunov M.,Sarti A.,Satriano C.,Satta A.,Savrie M.,Savrina D.,Schaack P.,Schiller M.,Schindler H.,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.,Silva Coutinho R.,Skwarnicki T.,Smith N. A.,Smith E.,Smith M.,Sokoloff M. D.,Soler F. J. P.,Soomro F.,Souza D.,Souza De Paula B.,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.,Sun L.,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.,Ubeda Garcia M.,Ukleja A.,Urner D.,Uwer U.,Vagnoni V.,Valenti G.,Vazquez Gomez R.,Vazquez Regueiro P.,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.,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 determination of the differential branching fraction and the first angular analysis of the decay $ B_s^0 $ ϕμ + μ are presented using data, corresponding to an integrated luminosity of 1.0 fb−1, collected by the LHCb experiment at $ \sqrt{s}=7 $ TeV. The differential branching fraction is determined in bins of q 2, the invariant dimuon mass squared. Integration over the full q 2 range yields a total branching fraction of $ \mathcal{B}\left( {B_s^0\to \phi {\mu^{+}}{\mu^{-}}} \right)=\left( {7.07_{-0.59}^{+0.64}\pm 0.71\pm 0.71} \right) $ × 10−7, where the first uncertainty is statistical, the second systematic, and the third originates from the branching fraction of the normalisation channel. An angular analysis is performed to determine the angular observables F L, S 3, A 6, and A 9. The observables are consistent with Standard Model expectations.

Publisher

Springer Science and Business Media LLC

Subject

Nuclear and High Energy Physics

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