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Title: Measurement of CP-Averaged Observables in the B-0 -> K-star 0 mu(+)mu(-) Decay
Author: Alfonso Albero, Alejandro
Calvo Gómez, Míriam
Camboni, Alessandro
Coquereau, Samuel
Garrido Beltrán, Lluís
Gascón Fora, David
Gironella Gironell, Pere
Graciani Díaz, Ricardo
Graugés Pous, Eugeni
Manera Escalero, R.
Vázquez Gómez, Ricard
Vilasis-Cardona, Xavier
LHCb Collaboration
Keywords: Gran Col·lisionador d'Hadrons
Leptons (Física nuclear)
Moment angular (Física nuclear)
Large Hadron Collider (France and Switzerland)
Leptons (Nuclear physics)
Angular momentum (Nuclear physics)
Issue Date: 2-Jul-2020
Publisher: American Physical Society
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.
Note: Reproducció del document publicat a:
It is part of: Physical Review Letters, 2020, vol. 125, num. 1, p. 011802
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ISSN: 0031-9007
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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