Observation of the decay Λc +→Σπ+π+π0

BESIII Collaboration

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17 Citations (Scopus)

Abstract

We report the first observation of the decay Λc +→Σπ+π+π0, based on data obtained in e+e annihilations with an integrated luminosity of 567 pb−1 at s=4.6 GeV. The data were collected with the BESIII detector at the BEPCII storage rings. The absolute branching fraction B(Λc +→Σπ+π+π0) is determined to be (2.11±0.33(stat.)±0.14(syst.))%. In addition, an improved measurement of B(Λ+ c→Σπ+π+) is determined as (1.81±0.17(stat.)±0.09(syst.))%.

Original languageEnglish
Pages (from-to)388-393
Number of pages6
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume772
DOIs
Publication statusPublished - 10 Sep 2017

Keywords

  • BESIII
  • Branching fraction
  • Charmed baryon
  • ee annihilation
  • Weak decays
  • e(+)e(-) annihilation
  • ABSOLUTE BRANCHING FRACTION
  • BARYON

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