Электронный каталог

Статья

Ablikim, M.
Search for the Semi-Muonic Charmonium Decay J/*q *> D*-*m*+*n&sub(*m) + c.c. / M.Ablikim, O.Bakina, I.Boyko, G.Chelkov, D.Dedovich, I.Denysenko, P.Egorov, A.Guskov, Y.Nefedov, S.Pogodin, A.Sarantsev, A.Zhemchugov, [a.o.] // Journal of High Energy Physics [Electronic resource]. – 2024. – Vol. 2024, No. 1. – P. 126. – URL: https://doi.org/10.1007/JHEP01(2024)126. – Bibliogr.: 64.

Using (10087 ± 44) × 106 J/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.



ОИЯИ = ОИЯИ (JINR)2024
Спец.(статьи,препринты) = С 332.7 - Встречные е+е- и мю+мю- пучки
Спец.(статьи,препринты) = С 346.6д1 - Чармоний, боттомоний, топ-кварк. Очарованные частицы и др. резонансы из тяжелых кварков