Measurement of branching fractions of J/ψ and ψ(3686) decays to Σ+ and $$ \overline{\Sigma} $$−
Measurement of branching fractions of J/ψ and ψ(3686) decays to Σ+ and $$ \overline{\Sigma} $$−
A bstract Using 1310 . 6 × 10 6 J/ψ and 448 . 1 × 10 6 ψ (3686) events collected with the BESIII detector, the branching fractions of J/ψ decays to Σ + $$ \overline{\Sigma} $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mover> <mml:mi>Σ</mml:mi> <mml:mo>¯</mml:mo> </mml:mover> </mml:math> − is measured to be (10 …