Observation of the 𝐽/𝜓→𝜇+𝜇−𝜇+𝜇− Decay in Proton-Proton Collisions at √s = 13 TeV

Physical Review D 2024
Kārlis Dreimanis, Antra Gaile, Guntis Pikurs, Andris Potrebko, Markus Seidel, Dimitrios Sidiropoulos Kontos, CMS Collaboration

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.

DOI
10.1103/PhysRevD.109.L111101
Hyperlink
https://link.aps.org/doi/10.1103/PhysRevD.109.L111101

The CMS Collaboration, A.Hayrapetyan, K.Dreimanis, A.Gaile, G.Pikurs, A.Potrebko, M.Seidel, V.Veckalns ... [et al.]. Observation of the 𝐽/𝜓→𝜇+𝜇−𝜇+𝜇− Decay in Proton-Proton Collisions at √s = 13 TeV. Physical Review D, 2024, Vol. 109, No. 11, Article number L111101. ISSN 2470-0010. e-ISSN 2470-0029. Pieejams: doi:10.1103/PhysRevD.109.L111101

Publication language
English (en)