| Thème(s) : |
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Physique/Physique des Hautes Energies - Expérience
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| Titre : |
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Measurement of the CP asymmetry in B0 -> K*0 mu+ mu- decays |
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| Auteur : |
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R. Aaij, S. Barsuk1, O. Callot1, J. He1, B. Jean-Marie1, J. Lefrançois1, F. Machefert1, A. Martin Sanchez1, M. Nicol1, P. Robbe1, M.-H. Schune1, B. Viaud1, I. Videau1, E. Ben-Haim2, M. Benayoun2, P. David2, L. Del Buono2, A. Martens2, C. Adrover3, E. Aslanides3, J. Cogan3, R. Legac3, O. Leroy3, G. Mancinelli3, E. Maurice3, M. Perrin-Terrin3, M. Sapunov3, J. Serrano3, A. Tsaregorodtsev3, Z.J. Ajaltouni4, O. Deschamps4, E. Cogneras4, I. El Rifai4, P. Henrard4, M. Hoballah4, M. Jahjah Hussein4, R. Lefèvre4, L. Li Gioi4, S. Monteil4, V. Niess4, P. Perret4, D.A. Roa Romero4, K. Sobczak4, I. De Bonis5, D. Decamp5, Ph. Ghez5, P. Hopchev5, J.-P. Lees5, I.V. Machikhiliyan5, M.-N. Minard5, B. Pietrzyk5, S. T'Jampens5, V. Tisserand5, E. Tournefier5 |
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| Laboratoire : |
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| Résumé : |
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A measurement of the CP asymmetry in B0 -> K*0 mu+ mu- decays is presented, based on 1.0fb-1 of pp collision data recorded by the LHCb experiment during 2011. The measurement is performed in six bins of invariant mass squared of the mu+ mu- pair, excluding the J/psi and psi(2S) resonance regions. Production and detection asymmetries are removed using the B0 -> J/Psi K*0 decay as a control mode. The integrated CP asymmetry is found to be -0.072 +- 0.040 (stat.) +- 0.005 (syst.), consistent with the Standard Model. |
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| Collaboration/Projet : |
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LHCb |
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| Type de publication : |
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Articles dans des revues avec comité de lecture |
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Date de publication ou d'écriture : |
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2013 |
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| Nom du périodique : |
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| Physical Review Letters (Phys. Rev. Lett.) |
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American Physical Society |
| ISSN |
0031-9007 (eISSN : 1079-7114) |
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| Volume : |
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110 |
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| Page/Article : |
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031801 |
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| Identifiant local : |
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LHCb-PAPER-2012-021; CERN-PH-EP-2012-302 |
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| Commentaire : |
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16 pages including author list, 2 figures, submitted to Phys. Rev. Lett. - See paper for full list of authors |
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