An angular analysis of the B0→K∗0(→K+π-)μ+μ- decay is presented using a dataset corresponding to an integrated luminosity of 4.7 fb-1 of pp collision data collected with the LHCb experiment. The full set of CP-averaged observables are determined in bins of the invariant mass squared of the dimuon system. Contamination from decays with the K+π- system in an S-wave configuration is taken into account. The tension seen between the previous LHCb results and the standard model predictions persists with the new data. The precise value of the significance of this tension depends on the choice of theory nuisance parameters.

Aaij, R., Abellan Beteta, C., Ackernley, T., Adeva, B., Adinolfi, M., Afsharnia, H., et al. (2020). Measurement of CP -Averaged Observables in the B0 →k∗0μ+μ- Decay. PHYSICAL REVIEW LETTERS, 125(1), 011802 [10.1103/PhysRevLett.125.011802].

Measurement of CP -Averaged Observables in the B0 →k∗0μ+μ- Decay

Borsato M.;Calvi M.;Carniti P.;Fazzini D.;Gotti C.;Martinazzoli L.;Martinelli M.;Meloni S.;Petruzzo M.;
2020

Abstract

An angular analysis of the B0→K∗0(→K+π-)μ+μ- decay is presented using a dataset corresponding to an integrated luminosity of 4.7 fb-1 of pp collision data collected with the LHCb experiment. The full set of CP-averaged observables are determined in bins of the invariant mass squared of the dimuon system. Contamination from decays with the K+π- system in an S-wave configuration is taken into account. The tension seen between the previous LHCb results and the standard model predictions persists with the new data. The precise value of the significance of this tension depends on the choice of theory nuisance parameters.
Articolo in rivista - Articolo scientifico
lhcb
English
2020
125
1
011802
011802
open
Aaij, R., Abellan Beteta, C., Ackernley, T., Adeva, B., Adinolfi, M., Afsharnia, H., et al. (2020). Measurement of CP -Averaged Observables in the B0 →k∗0μ+μ- Decay. PHYSICAL REVIEW LETTERS, 125(1), 011802 [10.1103/PhysRevLett.125.011802].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/289351
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