Measurement of the absolute branching fractions of Λc+ → Ληπ+ and Σ (1385)+η

(BESIII Collaboration)

Research output: Contribution to journalArticlepeer-review

21 Scopus citations


We study the decays Λc+→Ληπ+ and Σ(1385)+η based on Λc+Λ̄c- pairs produced in e+e- collisions at a center-of-mass energy of s=4.6 GeV, corresponding to an integrated luminosity of 567 pb-1. The data sample was accumulated with the BESIII detector at the BEPCII collider. The branching fractions are measured to be B(Λc+→Ληπ+)=(1.84±0.21(stat)±0.15(syst))% and B(Λc+→Σ(1385)+η)=(0.91±0.18(stat)±0.09(syst))%, constituting the most precise measurements to date.

Original languageEnglish (US)
Article number032010
JournalPhysical Review D
Issue number3
StatePublished - Feb 1 2019

Bibliographical note

Publisher Copyright:
© 2019 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP .


Dive into the research topics of 'Measurement of the absolute branching fractions of Λc+ → Ληπ+ and Σ (1385)+η'. Together they form a unique fingerprint.

Cite this