The Formula Presented decay has been observed with a statistical significance in excess of five standard deviations. The analysis is based on an event sample of proton-proton collisions at a center-of-mass energy of 13 TeV, collected by the CMS experiment in 2018 and corresponding to an integrated luminosity of Formula Presented. Normalizing to the Formula Presented decay mode leads to a branching fraction of Formula Presented, a value that is consistent with the standard model prediction.

Observation of the J/ψ → μ+μ−μ+μ− decay in proton-proton collisions at s√ = 13 TeV

Arcidiacono, R.;Arneodo, M.;Ruspa, M.;
2024-01-01

Abstract

The Formula Presented decay has been observed with a statistical significance in excess of five standard deviations. The analysis is based on an event sample of proton-proton collisions at a center-of-mass energy of 13 TeV, collected by the CMS experiment in 2018 and corresponding to an integrated luminosity of Formula Presented. Normalizing to the Formula Presented decay mode leads to a branching fraction of Formula Presented, a value that is consistent with the standard model prediction.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11579/206862
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