A full set of optimized observables is measured in an angular analysis of the decay B0→K⁎(892)0μ+μ− using a sample of proton-proton collisions at s=13TeV, collected with the CMS detector at the LHC, corresponding to an integrated luminosity of 140 fb−1. The analysis is performed in six bins of the squared invariant mass of the dimuon system, q2, over the range 1.1<16GeV2. The results are among the most precise experimental measurements of the angular observables for this decay and are compared to a variety of predictions based on the standard model. Some of these predictions exhibit tension with the measurements.

Hayrapetyan, A., Tumasyan, A., Adam, W., Andrejkovic, J., Benato, L., Bergauer, T., et al. (2025). Angular analysis of the B0 → K⁎(892)0μ+μ− decay in proton-proton collisions at s=13TeV. PHYSICS LETTERS. SECTION B, 864 [10.1016/j.physletb.2025.139406].

Angular analysis of the B0 → K⁎(892)0μ+μ− decay in proton-proton collisions at s=13TeV

Xiao J.;Brivio F.;Cetorelli F.;De Guio F.;Dinardo M. E.;Gerosa R.;Ghezzi A.;Govoni P.;Guzzi L.;Lucchini M. T.;Malberti M.;Moroni L.;Paganoni M.;Palluotto S.;Perego A.;Pinolini B. S.;Pizzati G.;Ragazzi S.;Tabarelli de Fatis T.;
2025

Abstract

A full set of optimized observables is measured in an angular analysis of the decay B0→K⁎(892)0μ+μ− using a sample of proton-proton collisions at s=13TeV, collected with the CMS detector at the LHC, corresponding to an integrated luminosity of 140 fb−1. The analysis is performed in six bins of the squared invariant mass of the dimuon system, q2, over the range 1.1<16GeV2. The results are among the most precise experimental measurements of the angular observables for this decay and are compared to a variety of predictions based on the standard model. Some of these predictions exhibit tension with the measurements.
Articolo in rivista - Articolo scientifico
B-physics; CMS; Flavor anomalies; Heavy flavor; Rare decays;
English
21-mar-2025
2025
864
139406
none
Hayrapetyan, A., Tumasyan, A., Adam, W., Andrejkovic, J., Benato, L., Bergauer, T., et al. (2025). Angular analysis of the B0 → K⁎(892)0μ+μ− decay in proton-proton collisions at s=13TeV. PHYSICS LETTERS. SECTION B, 864 [10.1016/j.physletb.2025.139406].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/575291
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