Improved measurements of χcJ → Σ+ Σ - and Σ0 Σ 0 decays IMPROVED MEASUREMENTS of ... M. ABLIKIM et al.

The BELLE collaboration

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Abstract

Using a data sample of (448.1±2.9)×106 ψ(3686) events collected with the BESIII detector at the BEPCII collider, we present measurements of branching fractions for the decays χcJ→Σ+Σ- and Σ0Σ0. The decays χc1,2→Σ+Σ- and Σ0Σ0 are observed for the first time, and the branching fractions for χc0→Σ+Σ- and Σ0Σ0 decays are measured with improved precision. The branching fraction ratios between the charged and neutral modes are consistent with the prediction of isospin symmetry.

Original languageEnglish
Article number054505
Number of pages22
JournalPhysical Review D
Volume97
Issue number5
DOIs
Publication statusPublished - 1 Mar 2018

Keywords

  • STATES
  • SCATTERING

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