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

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URI: https://hdl.handle.net/10902/38320
ISSN: 0370-2693
ISSN: 1873-2445
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Autoría
Hayrapetyan, A.; Tumasyan, A.; Bhowmik, Sandeep; Blanco Fernández, SergioAutoridad Unican; Cabrillo Bartolomé, José Ibán; Calderón Tazón, AliciaAutoridad Unican; Duarte Campderros, JorgeAutoridad Unican; Fernández García, MarcosAutoridad Unican; Gómez Gramuglio, GervasioAutoridad Unican; Lasaosa García, Clara; López Ruiz, Rubén; Martínez Rivero, Celso; Martínez Ruiz del Árbol, PabloAutoridad Unican; Matorras Weinig, FranciscoAutoridad Unican; Matorras Cuevas, PabloAutoridad Unican; Navarrete Ramos, EfrénAutoridad Unican; Piedra Gómez, JonatanAutoridad Unican; Scodellaro, LucaAutoridad Unican; Vila Álvarez, IvánAutoridad Unican; [et al.]
Fecha
2025
Derechos
Attribution 4.0 International
Publicado en
Physics Letters Section B Nuclear Elementary Particle and High Energy Physics, 2025, 864, 139406
Editorial
Elsevier
Palabras clave
CMS
B-physics
Heavy flavor
Rare decays
Flavor anomalies
Resumen/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=13 Te V, 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 <q2 < 16 Ge V2. 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.
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