Search for the rare decay of ψ (3686) → Λc+ p e+e-+c.c. at BESIII SEARCH for the RARE DECAY of ... M. ABLIKIM et al.

BESIII Collaboration

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Abstract

Based on a data sample of (448.1±2.9)×106ψ(3686) decays collected with the BESIII experiment, a search for the flavor changing neutral current transition ψ(3686)→Λc+pe+e-+c.c. is performed for the first time. No signal candidates are observed and the upper limit on the branching fraction of ψ(3686)→Λc+pe+e- is determined to be 1.7×10-6 at the 90% confidence level. The result is consistent with expectations from the standard model, and no evidence for new physics is found.

Original languageEnglish (US)
Article number091102
JournalPhysical Review D
Volume97
Issue number9
DOIs
StatePublished - May 1 2018

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© 2018 authors. Published by the American Physical Society.

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