Search for the rare decays <i>J</i>/ψ → <i>D</i><SUP>0</SUP><i>e</i><SUP>+</SUP> <i>e</i><SUP>-</SUP> + c.c. and ψ(3686) → <i>D</i><SUP>0</SUP><i>e</i><SUP>+</SUP> <i>e</i><SUP>-</SUP> + c.c.
PHYSICAL REVIEW D, vol.96, no.11, 2017 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 96 Issue: 11
- Publication Date: 2017
- Doi Number: 10.1103/physrevd.96.111101
- Journal Name: PHYSICAL REVIEW D
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Open Archive Collection: AVESIS Open Access Collection
- Bursa Uludag University Affiliated: No
Abstract
Using the data samples of (1310.6 +/- 7.2) x 10(6) J/psi events and (448.1 +/- 2.9) x 10(6) psi(3686) events collected with the BESIII detector, we search for the rare decays J/psi -> D(0)e(+) e(-) + c.c. and psi(3686) -> D(0)e(+) 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/psi -> D(0)e(+) e(-) + c.c.) < 8.5 x 10(-8) and B(psi(3686) -> D(0)e(+) e(-) + c.c.) < 1.4 x 10(-7), respectively. Our limit on B(J/psi -> D(0)e(+) e(-) + c.c.) is more stringent by 2 orders of magnitude than the previous results, and B(psi(3686) -> D(0)e(+) e(-) + c.c.) is measured for the first time.