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.

Angular analysis of the B0 -> K*(892)0 mu+ mu- decay in proton-proton collisions at sqrt(s) = 13 TeV / Hayrapetyan, A., Tumasyan, A., Adam, W., Andrejkovic, J.W., Benato, L., Bergauer, T., Chatterjee, S., Damanakis, K., Dragicevic, M., Hussain, P.S., Jeitler, M., Krammer, N., Li, A., Liko, D., Mikulec, I., Schieck, J., Schöfbeck, R., Schwarz, D., Sonawane, M., Waltenberger, W., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 864:(2025 May). [10.1016/j.physletb.2025.139406]

Angular analysis of the B0 -> K*(892)0 mu+ mu- decay in proton-proton collisions at sqrt(s) = 13 TeV

Cunqueiro Mendez, L.;Del Re, D.;Organtini, G.;Paramatti, R.;Rahatlou, S.;Santanastasio, F.;
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.
2025-05
B-physics; CMS; Flavor anomalies; Heavy flavor; Rare decays
01 Pubblicazione su rivista::01a Articolo in rivista
Angular analysis of the B0 -> K*(892)0 mu+ mu- decay in proton-proton collisions at sqrt(s) = 13 TeV / Hayrapetyan, A., Tumasyan, A., Adam, W., Andrejkovic, J.W., Benato, L., Bergauer, T., Chatterjee, S., Damanakis, K., Dragicevic, M., Hussain, P.S., Jeitler, M., Krammer, N., Li, A., Liko, D., Mikulec, I., Schieck, J., Schöfbeck, R., Schwarz, D., Sonawane, M., Waltenberger, W., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 864:(2025 May). [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/11573/1779733
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