Using (10087 +/- 44) x 10(6) J/psi events collected with the BESIII detector at the BEPCII e(+)e(-) storage ring at the center-of-mass energy of sort{s} = 3.097 GeV, we present a search for the rare semi-muonic charmonium decay J/psi -> D-mu(+)nu(mu) + c.c.. Since no significant signal is observed, we set an upper limit of the branching fraction to be B (J/psi -> D-mu(+)nu(mu) + c.c.) < 5.6 x 10(-7) at 90% confidence level. This is the first search for the weak decay of charmonium with a muon in the final state.

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

Garzia, I.;Gramigna, S.;
2024

Abstract

Using (10087 +/- 44) x 10(6) J/psi events collected with the BESIII detector at the BEPCII e(+)e(-) storage ring at the center-of-mass energy of sort{s} = 3.097 GeV, we present a search for the rare semi-muonic charmonium decay J/psi -> D-mu(+)nu(mu) + c.c.. Since no significant signal is observed, we set an upper limit of the branching fraction to be B (J/psi -> D-mu(+)nu(mu) + c.c.) < 5.6 x 10(-7) at 90% confidence level. This is the first search for the weak decay of charmonium with a muon in the final state.
2024
Null, Null; Ablikim, M.; Achasov, M. N.; Adlarson, P.; Ai, X. C.; Aliberti, R.; Amoroso, A.; An, M. R.; An, Q.; Bai, Y.; Bakina, O.; Balossino, I.; Ba...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/2556930
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