TY  - JOUR
AU  - LHCb Collaboration (Aaij, R. et al
AU  - Martinez-Vidal, F.
AU  - Oyanguren, A.
AU  - Ruiz Valls, P.
AU  - Sanchez Mayordomo, C.
PY  - 2016
DA  - 2016//
TI  - Angular analysis of the B-0 -> K*(0) mu(+) mu(-) decay using 3 fb(-1) of integrated luminosity
T2  - J. High Energy Phys.
JO  - Journal of High Energy Physics
SP  - 104
EP  - 79pp
VL  - 02
IS  - 2
PB  - Springer
KW  - Rare decay
KW  - Hadron-Hadron scattering
KW  - FCNC Interaction
KW  - B physics
KW  - Flavor physics
AB  - An angular analysis of the B-0 -> K*(0) (-> K+pi(-))mu(+)mu(-) decay is presented. The dataset corresponds to an integrated luminosity of 3.0 fb(-1) of pp collision data collected at the LHCb experiment. The complete angular information from the decay is used to determine CP-averaged observables and CP asymmetries, taking account of possible contamination from decays with the K+pi(-) system in an S-wave configuration. The angular observables and their correlations are reported in bins of q(2), the invariant mass squared of the dimuon system. The observables are determined both from an unbinned maximum likelihood fit and by using the principal moments of the angular distribution. In addition, by fitting for q(2)-dependent decay amplitudes in the region 1.1 < q(2) < 6.0 GeV2/(c)4, the zero-crossing points of several angular observables are computed. A global fit is performed to the complete set of CP-averaged observables obtained from the maximum likelihood fit. This fit indicates differences with predictions based on the Standard Model at the level of 3.4 standard deviations. These differences could be explained by contributions from physics beyond the Standard Model, or by an unexpectedly large hadronic effect that is not accounted for in the Standard Model predictions.
SN  - 1029-8479
UR  - http://arxiv.org/abs/1512.04442
UR  - https://doi.org/10.1007/JHEP02(2016)104
DO  - 10.1007/JHEP02(2016)104
LA  - English
N1  - WOS:000370757900001
ID  - LHCbCollaborationAaij_etal2016
ER  -