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

(BESIII 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 (US)
Article number054505
JournalPhysical Review D
Volume97
Issue number5
DOIs
StatePublished - Mar 1 2018

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© 2018 authors.

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