Improved measurements of χcJ → Σ+ Σ - and Σ0 Σ 0 decays IMPROVED MEASUREMENTS of ... M. ABLIKIM et al.
Citation
Ablikim, M., An, F. F., Bai, J. Z., Cai, X., Cao, G. F., Chang, J. F., ... & Libby, J. (2018). Improved measurements of χcJ→ Σ+ Σ-and Σ0 Σ 0 decays IMPROVED MEASUREMENTS of... M. ABLIKIM et al. Physical Review D, 97(5), 054505-054505.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. © 2018 authors.
