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 root 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

Amoroso, A.;Bianchi, F.;Destefanis, M.;De Mori, F.;Greco, M.;Maggiora, M.;Marcello, S.;Sosio, S.;Spataro, S.;
2024-01-01

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 root 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
2024
1
1
19
Branching fraction; e(+)-e(-) Experiments; Quarkonium; Rare Decay
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/2318/2014830
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