Search for the rare decay of Ψ(3686) → Λ+pe<SUP>+</SUP>e<SUP>-</SUP> +c.c. at BESIII
PHYSICAL REVIEW D, vol.97, no.9, 2018 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 97 Issue: 9
- Publication Date: 2018
- Doi Number: 10.1103/physrevd.97.091102
- 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
Based on a data sample of (448.1 +/- 2.9) x 10(6)Psi(3686) decays collected with the BESIII experiment, a search for the flavor changing neutral current transition Psi(3686) -> Lambda(+)(c) pe(+) e(-) + c.c. is performed for the first time. No signal candidates are observed and the upper limit on the branching fraction of Psi(3686) -> Lambda(+)(c) pe(+) e(-) is determined to be 1.7 x 10(-6) at the 90% confidence level. The result is consistent with expectations from the standard model, and no evidence for new physics is found.