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 GeV2. 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.
Angular analysis of the B0 → K∗(892)0μ+μ− decay in proton-proton collisions at √𝑠=13 TeV
Tornago, M.;Cappati, A.;Amapane, N.;Argiro, S.;Bellan, R.;Bellora, A.;Borca, C.;Costa, M.;Covarelli, R.;Grippo, M.;Kiani, B.;Luongo, F.;Markovic, L.;Mecca, A.;Menzio, L.;Meridiani, P.;Migliore, E.;Mulargia, R.;Obertino, M. M.;Pacher, L.;Siviero, F.;Sola, V.;Solano, A.;Tarricone, C.;Umoret, G.;Salvatico, R.;Shchelina, K.;Rumerio, P.;Ravera, F.;Vagnerini, A.;
2025-01-01
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 GeV2. 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.| File | Dimensione | Formato | |
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