We observe the process ψ(3686)→pp̄η′ for the first time, with a statistical significance higher than 10σ, and measure the branching fraction of J/ψ→pp̄η′ with an improved accuracy compared to earlier studies. The measurements are based on 4.48×108 ψ(3686) and 1.31×109 J/ψ events collected by the BESIII detector operating at the BEPCII. The branching fractions are determined to be B(ψ(3686)→pp̄η′)=(1.10±0.10±0.08)×10-5 and B(J/ψ→pp̄η′)=(1.26±0.02±0.07)×10-4, where the first uncertainties are statistical and the second ones systematic. Additionally, the η-η′ mixing angle is determined to be -24°±11° based on ψ(3686)→pp̄η′, and -24°±9° based on J/ψ→pp̄η′, respectively
Using 2.25×108J/ψ events collected with the BESIII detector at the BEPCII storage rings, we observe ...
We report a measurement of the branching fraction for ψ(3770)→γχc1 and search for the transition ψ(3...
The decays J/ψ→ης+ς¯- and ψ(3686)→ης+ς¯- are observed for the first time, using (10087±44)×106 J/ψ a...
Using a data sample of 448 × 10^6 ψ(3686) events collected with the BESIII detector operating at the...
Using a data sample of 448×106 ψ(3686) events collected with the BESIII detector operating at the B...
By analyzing (448.1±2.9)×106 ψ(3686) events collected with the BESIII detector operating at the BEPC...
We observe the decay ψ(3686)→nn̄ for the first time and measure ψ(3686)→pp̄ with improved accuracy b...
Using a data sample of 1.31×109 J/ψ events accumulated with the BESIII detector, the decay J/ψ→ppφ i...
Based on a sample of (1310.6±7.0)×106J/ψ events collected with the BESIII detector, we present measu...
Using a sample of 448.1×106 ψ(3686) events collected with the BESIII detector, we perform a study of...
Using 4.479 × 108 ψð3686Þ events collected with the BESIII detector, we search for the decays ψð3686...
Using a data sample of (448.1±2.9)×106 ψ(3686) decays collected by the BESIII detector at the Beijin...
Using a sample of 1.06 × 108 ψ(3686) events collected with the BESIII detector, we present the first...
Using 1310.6 × 10^6 J/ψ and 447.9 × 106 ψ(3686) events collected with the BESIII detector at the BEP...
By analyzing ð448.1 ` 2.9Þ × 106 ψ ð3686Þ events collected with the BESIII detector operating at the...
Using 2.25×108J/ψ events collected with the BESIII detector at the BEPCII storage rings, we observe ...
We report a measurement of the branching fraction for ψ(3770)→γχc1 and search for the transition ψ(3...
The decays J/ψ→ης+ς¯- and ψ(3686)→ης+ς¯- are observed for the first time, using (10087±44)×106 J/ψ a...
Using a data sample of 448 × 10^6 ψ(3686) events collected with the BESIII detector operating at the...
Using a data sample of 448×106 ψ(3686) events collected with the BESIII detector operating at the B...
By analyzing (448.1±2.9)×106 ψ(3686) events collected with the BESIII detector operating at the BEPC...
We observe the decay ψ(3686)→nn̄ for the first time and measure ψ(3686)→pp̄ with improved accuracy b...
Using a data sample of 1.31×109 J/ψ events accumulated with the BESIII detector, the decay J/ψ→ppφ i...
Based on a sample of (1310.6±7.0)×106J/ψ events collected with the BESIII detector, we present measu...
Using a sample of 448.1×106 ψ(3686) events collected with the BESIII detector, we perform a study of...
Using 4.479 × 108 ψð3686Þ events collected with the BESIII detector, we search for the decays ψð3686...
Using a data sample of (448.1±2.9)×106 ψ(3686) decays collected by the BESIII detector at the Beijin...
Using a sample of 1.06 × 108 ψ(3686) events collected with the BESIII detector, we present the first...
Using 1310.6 × 10^6 J/ψ and 447.9 × 106 ψ(3686) events collected with the BESIII detector at the BEP...
By analyzing ð448.1 ` 2.9Þ × 106 ψ ð3686Þ events collected with the BESIII detector operating at the...
Using 2.25×108J/ψ events collected with the BESIII detector at the BEPCII storage rings, we observe ...
We report a measurement of the branching fraction for ψ(3770)→γχc1 and search for the transition ψ(3...
The decays J/ψ→ης+ς¯- and ψ(3686)→ης+ς¯- are observed for the first time, using (10087±44)×106 J/ψ a...