Differential branching fractions and isospin asymmetries of $B \to K^{*}\mu^{+}\mu^{-}$ decays

R. Aaij; Y. Amhis; S. Barsuk; O. Callot; J. He; O. Kochebina; J. Lefrançois; F. Machefert; A. Martin Sanchez; Marie Nicol; P. Robbe; M.-H. Schune; M. Teklishyn; A. Vallier; B. Viaud; E. Ben-Haim; M. Benayoun; P. David; L. del Buono; A. Martens; D.A. Milanes; F. Polci; Ziad Ajaltouni; M. Baalouch; E. Cogneras; O. Deschamps; I. El Rifai; M. Grabalosa Gándara; Pierre Henrard; M. Hoballah; R. Lefèvre; J. Maratas; S. Monteil; V. Niess; Pascal Perret; Diego Alejandro Roa Romero; E. Aslanides; J. Cogan; W. Kanso; R. Legac; O. Leroy; G. Mancinelli; A. Mordà; M. Perrin-Terrin; M. Sapunov; J. Serrano; A. Tsaregorodtsev; D. Decamp; N. Déléage; Ph. Ghez; J.-P. Lees; M.-N. Minard; B. Pietrzyk; W. Qian; S. t'Jampens; V. Tisserand; E. Tournefier; J.F. Marchand

doi:10.1007/JHEP06(2014)133

Journal articles

Differential branching fractions and isospin asymmetries of $B \to K^{*}\mu^{+}\mu^{-}$ decays

R. Aaij Y. Amhis ¹ S. Barsuk ¹ O. Callot ¹ J. He ¹ O. Kochebina ¹ J. Lefrançois ¹ F. Machefert ¹ A. Martin Sanchez ¹ Marie Nicol ¹ P. Robbe ¹ M.-H. Schune ¹ M. Teklishyn ¹ A. Vallier ¹ B. Viaud ¹ E. Ben-Haim ² M. Benayoun ² P. David ² L. del Buono ² A. Martens ² D.A. Milanes ² F. Polci ² Ziad Ajaltouni ³ M. Baalouch ³ E. Cogneras ³ O. Deschamps ³ I. El Rifai ³ M. Grabalosa Gándara ³ Pierre Henrard ³ M. Hoballah ³ R. Lefèvre ³ J. Maratas ³ S. Monteil ³ V. Niess ³ Pascal Perret ³ Diego Alejandro Roa Romero ³ E. Aslanides ⁴ J. Cogan ⁴ W. Kanso ⁴ R. Legac ⁴ O. Leroy ⁴ G. Mancinelli ⁴ A. Mordà ^{4, 5} M. Perrin-Terrin ⁴ M. Sapunov ⁴ J. Serrano ⁴ A. Tsaregorodtsev ⁴ D. Decamp ⁶ N. Déléage ⁶ Ph. Ghez ⁶ J.-P. Lees ⁶ M.-N. Minard ⁶ B. Pietrzyk ⁶ W. Qian ⁶ S. t'Jampens ⁶ V. Tisserand ⁶ E. Tournefier ⁶ J.F. Marchand ⁶

1 LAL - Laboratoire de l'Accélérateur Linéaire

2 LPNHE - Laboratoire de Physique Nucléaire et de Hautes Énergies

3 LPC - Laboratoire de Physique Corpusculaire - Clermont-Ferrand

4 CPPM - Centre de Physique des Particules de Marseille

5 CPT - Centre de Physique Théorique - UMR 7332

6 LAPP - Laboratoire d'Annecy de Physique des Particules

Abstract : The isospin asymmetries of $B \to K\mu^+\mu^-$ and $B \to K^{*}\mu^+\mu^-$ decays and the partial branching fractions of the $B^0 \to K^0\mu^+\mu^-$, $B^+ \to K^+\mu^+\mu^-$ and $B^+ \to K^{*+}\mu^+\mu^-$ decays are measured as functions of the dimuon mass squared, $q^2$. The data used correspond to an integrated luminosity of 3~fb$^{-1}$ from proton-proton collisions collected with the LHCb detector at centre-of-mass energies of 7\,TeV and 8\,TeV in 2011 and 2012, respectively. The isospin asymmetries are both consistent with the Standard Model expectations. The three measured branching fractions, while individually consistent, all favour lower values than their respective Standard Model predictions.

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Journal articles

Domain :

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

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Submitted on : Tuesday, April 1, 2014 - 11:58:31 AM
Last modification on : Thursday, December 16, 2021 - 2:10:34 PM

Differential branching fractions and isospin asymmetries of $B \to K^{*}\mu^{+}\mu^{-}$ decays

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Differential branching fractions and isospin asymmetries of $B \to K^{*}\mu^{+}\mu^{-}$ decays

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