Search for the semi-muonic charmonium decay J/ψ → D − μ + ν μ + c. c

Search for the semi-muonic charmonium decay J/ψ → D − μ + ν μ + c. c

Using (10087 ± 44) × 106J/ψ events collected with the BESIII detector at the BEPCII e+e− storage ring at the center-of-mass energy of s = 3.097 GeV, we present a search for the rare semi-muonic charmonium decay J/ψ → D−μ+νμ + c.c.. Since no significant signal is observed, we set an upper limit of th...

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Bibliographic Details
Main Authors: Ablikim, M, Achasov, MN, Adlarson, P, Ai, XC, Aliberti, R, Amoroso, A, An, MR, An, Q, Bai, Y, Bakina, O, Balossino, I, Ban, Y, Batozskaya, V, Begzsuren, K, Berger, N, Berlowski, M, Bertani, M, Bettoni, D, Bianchi, F, Bianco, E, Bortone, A, Boyko, I, Briere, RA, Brueggemann, A, Fischer, K, Gilman, A, Malde, S, Tat, M, Wilkinson, G, Zhang, Y
Format: Journal article
Language:English
Published: Springer 2024
Description
Summary:Using (10087 ± 44) × 106J/ψ events collected with the BESIII detector at the BEPCII e+e− storage ring at the center-of-mass energy of s = 3.097 GeV, we present a search for the rare semi-muonic charmonium decay J/ψ → D−μ+νμ + c.c.. Since no significant signal is observed, we set an upper limit of the branching fraction to be B (J/ψ → D−μ+νμ + c.c.) < 5.6 × 10−7 at 90% confidence level. This is the first search for the weak decay of charmonium with a muon in the final state.

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