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.

Aaij, R., Beteta, C., Adametz, A., Adeva, B., Adinolfi, M., Adrover, C., et al. (2013). Measurement of the CP Asymmetry in B-0 -> K*(0)mu(+)mu(-) Decays. PHYSICAL REVIEW LETTERS, 110, 031801 [10.1103/PhysRevLett.110.031801].

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

Archilli, F;CARBONI, GIOVANNI;SANTOVETTI, EMANUELE;
2013-01-01

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.
2013
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore FIS/04 - FISICA NUCLEARE E SUBNUCLEARE
English
Con Impact Factor ISI
Aaij, R., Beteta, C., Adametz, A., Adeva, B., Adinolfi, M., Adrover, C., et al. (2013). Measurement of the CP Asymmetry in B-0 -> K*(0)mu(+)mu(-) Decays. PHYSICAL REVIEW LETTERS, 110, 031801 [10.1103/PhysRevLett.110.031801].
Aaij, R; Beteta, C; Adametz, A; Adeva, B; Adinolfi, M; Adrover, C; Affolder, A; Ajaltouni, Z; Albrecht, J; Alessio, F; Alexander, M; Ali, S; Alkhazov,...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/100517
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