Angular analysis of the $B^{0}\rightarrow K^{*0}\mu^{+}\mu^{-}$ decay

R. Aaij; Y. Amhis; S. Barsuk; M. Borsato; O. Kochebina; J. Lefrançois; Y. Li; F. Machefert; G. Manca; R. Quagliani; P. Robbe; M-H. Schune; M. Teklishyn; A. Vallier; B. Viaud; G. Wormser; L. Beaucourt; M. Chefdeville; D. Decamp; N. Déléage; P. Ghez; J.P. Lees; J.F. Marchand; M.N. Minard; B. Pietrzyk; W. Qian; S. t'Jampens; V. Tisserand; E. Tournefier; Z.J. Ajaltouni; M. Baalouch; E. Cogneras; O. Deschamps; I. El Rifai; G. Gazzoni; M. Grabalosa Gándara; Pierre Henrard; M. Hoballah; M. Kozeiha; R. Lefèvre; J. Maratas; S. Monteil; V. Niess; P. Perret; S. Akar; E. Aslanides; J. Cogan; K. De Bruyn; W. Kanso; R. Legac; O. Leroy; G. Mancinelli; M. Martin; A. Mordà; J. Serrano; A. Tayduganov; A. Tsaregorodtsev

Angular analysis of the $B^{0}\rightarrow K^{*0}\mu^{+}\mu^{-}$ decay

R. Aaij Y. Amhis ¹ S. Barsuk ¹ M. Borsato ¹ O. Kochebina ¹ J. Lefrançois ¹ Y. Li F. Machefert ¹ G. Manca ¹ R. Quagliani ¹ P. Robbe ¹ M-H. Schune ¹ M. Teklishyn ¹ A. Vallier ¹ B. Viaud ¹ G. Wormser ¹ L. Beaucourt ² M. Chefdeville ² D. Decamp ² N. Déléage ² P. Ghez ² J.P. Lees ² J.F. Marchand ² M.N. Minard ² B. Pietrzyk ² W. Qian ² S. t'Jampens ² V. Tisserand ² E. Tournefier ² Z.J. Ajaltouni ³ M. Baalouch ³ E. Cogneras ³ O. Deschamps ³ I. El Rifai ³ G. Gazzoni ³ M. Grabalosa Gándara ³ Pierre Henrard ³ M. Hoballah ³ M. Kozeiha ³ R. Lefèvre ³ J. Maratas ³ S. Monteil ³ V. Niess ³ P. Perret ³ S. Akar ⁴ E. Aslanides ⁴ J. Cogan ⁴ K. De Bruyn ⁴ W. Kanso ⁴ R. Legac ⁴ O. Leroy ⁴ G. Mancinelli ⁴ M. Martin ⁴ A. Mordà ⁴ J. Serrano ⁴ A. Tayduganov ⁴ A. Tsaregorodtsev ⁴

1 LAL - Laboratoire de l'Accélérateur Linéaire

2 LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules - Laboratoire d'Annecy de Physique des Particules

3 LPC - Laboratoire de Physique Corpusculaire - Clermont-Ferrand

4 CPPM - Centre de Physique des Particules de Marseille

Abstract : An angular analysis of the $B^{0}\rightarrow K^{*0}(\rightarrow K^{+}\pi^{-})\mu^{+}\mu^{-}$ decay is presented. The dataset corresponds to an integrated luminosity of $3.0\,{\mbox{fb}^{-1}}$ of $pp$ collision data collected at the LHCb experiment. The complete angular information from the decay is used to determine $C\!P$-averaged observables and $C\!P$ asymmetries, taking account of possible contamination from decays with the $K^{+}\pi^{-}$ system in an S-wave configuration. The angular observables and their correlations are reported in bins of $q^2$, the invariant mass squared of the dimuon system. The observables are determined both from an unbinned maximum likelihood fit and by using the principal moments of the angular distribution. In addition, by fitting for $q^2$-dependent decay amplitudes in the region $1.1

Document type :

Journal articles

Domain :

Physics [physics] / High Energy Physics - Experiment [hep-ex]

Complete list of metadatas

http://hal.in2p3.fr/in2p3-01243545
Contributor : Sabine Starita <>
Submitted on : Tuesday, December 15, 2015 - 10:03:47 AM
Last modification on : Monday, June 3, 2019 - 1:38:03 PM

Angular analysis of the $B^{0}\rightarrow K^{*0}\mu^{+}\mu^{-}$ decay

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Angular analysis of the $B^{0}\rightarrow K^{*0}\mu^{+}\mu^{-}$ decay

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