First Measurements of $\chi_{cJ}\rightarrow \Sigma^{-} \bar{\Sigma}^{+} (J = 0, 1, 2)$ Decays
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DOI: 10.1103/physrevd.101.092002
Abstract: We measured the branching fractions of the decays χcJ→Σ-Σ¯+ for the first time using the final states nn¯π+π-. The data sample exploited here is 448.1×106 ψ(3686) events collected with BESIII. We find B(χcJ→Σ-Σ¯+)=(51.3±2.4±4.1)×10-5,(5.7±1.4±0.6)×10-5, and (4.4±1.7±0.5)×10-5, for… read more here.
Keywords: rightarrow sigma; measurements chi; decays first; chi rightarrow ... See more keywords