A measurement of the CP asymmetry in B-0 -> K*(0)mu(+)mu(-) decays is presented, based on 1.0 fb(-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 B-0 -> 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. DOI: 10.1103/PhysRevLett.110.031801

Measurement of the CP Asymmetry in B-0 -> K*(0)mu(+)mu(-) Decays / R., A., C. A., B., A., A., B., A., M., A., C., A., A., A., Z., A., J., A., F., A., M., A., S., A., G., A., P. A., C., J. A., A., S., A., Y., A., L., A., J., A., R. B., A., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 110:(2013). [10.1103/physrevlett.110.031801]

Measurement of the CP Asymmetry in B-0 -> K*(0)mu(+)mu(-) Decays

PENSO, Gianni;SARTI, ALESSIO;SCIUBBA, Adalberto;
2013

Abstract

A measurement of the CP asymmetry in B-0 -> K*(0)mu(+)mu(-) decays is presented, based on 1.0 fb(-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 B-0 -> 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. DOI: 10.1103/PhysRevLett.110.031801
2013
01 Pubblicazione su rivista::01a Articolo in rivista
Measurement of the CP Asymmetry in B-0 -> K*(0)mu(+)mu(-) Decays / R., A., C. A., B., A., A., B., A., M., A., C., A., A., A., Z., A., J., A., F., A., M., A., S., A., G., A., P. A., C., J. A., A., S., A., Y., A., L., A., J., A., R. B., A., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 110:(2013). [10.1103/physrevlett.110.031801]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/560359
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