Search for the rare decays J /ψ →d0e+e-+ c. c. and ψ (3686) →d0e+e-+ c. c.

The BESIII Collaboration

Результат исследования: Научные публикации в периодических изданияхстатья

Аннотация

Using the data samples of (1310.6±7.2)×106 J/ψ events and (448.1±2.9)×106 ψ(3686) events collected with the BESIII detector, we search for the rare decays J/ψ→D0e+e-+c.c. and ψ(3686)→D0e+e-+c.c. No significant signals are observed and the corresponding upper limits on the branching fractions at the 90% confidence level are determined to be B(J/ψ→D0e+e-+c.c.)<8.5×10-8 and B(ψ(3686)→D0e+e-+c.c.)<1.4×10-7, respectively. Our limit on B(J/ψ→D0e+e-+c.c.) is more stringent by 2 orders of magnitude than the previous results, and B(ψ(3686)→D0e+e-+c.c.) is measured for the first time.

Язык оригиналаанглийский
Номер статьи111101
Число страниц8
ЖурналPhysical Review D
Том96
Номер выпуска11
DOI
СостояниеОпубликовано - 6 дек 2017

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