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2020-07-02

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cc-by (c) Aaij, R. et al., 2020
Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/175177

Measurement of CP-Averaged Observables in the B-0 -> K-star 0 mu(+)mu(-) Decay

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https://doi.org/10.1103/PhysRevLett.125.011802

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.

Subject

Gran Col·lisionador d'Hadrons, Leptons (Física nuclear), Moment angular (Física nuclear)

Subject (English)

Large Hadron Collider (France and Switzerland), Leptons (Nuclear physics), Angular momentum (Nuclear physics)

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Articles publicats en revistes (Física Quàntica i Astrofísica)
Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB))
Publicacions de projectes de recerca finançats per la UE

Citation

ALFONSO ALBERO, Alejandro, et al. Measurement of CP-Averaged Observables in the B-0 -> K-star 0 mu(+)mu(-) Decay. Physical Review Letters. 2020. Vol. 125, num. 1, pags. 011802. ISSN 0031-9007. [consulted: 12 of August of 2026]. Available at: https://hdl.handle.net/2445/175177

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