Search for the rare decay of Ψ(3686) → Λ+pe<SUP>+</SUP>e<SUP>-</SUP> +c.c. at BESIII


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Ablikim M., Achasov M. N., Ahmed S., Albrecht M., Alekseev M., Amoroso A., ...More

PHYSICAL REVIEW D, vol.97, no.9, 2018 (SCI-Expanded) identifier identifier identifier

  • 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
  • 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.