Measurement of the CP asymmetry in B0 -> K*0 mu+ mu- decays

Abstract : 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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Article dans une revue
Physical Review Letters, American Physical Society, 2013, 110, pp.031801. <10.1103/PhysRevLett.110.031801>


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Soumis le : mercredi 17 octobre 2012 - 15:55:21
Dernière modification le : mardi 11 octobre 2016 - 13:41:19

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R. Aaij, S. Barsuk, O. Callot, J. He, B. Jean-Marie, et al.. Measurement of the CP asymmetry in B0 -> K*0 mu+ mu- decays. Physical Review Letters, American Physical Society, 2013, 110, pp.031801. <10.1103/PhysRevLett.110.031801>. <in2p3-00742909>

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