We report a measurement of the observed cross sections of e+ e− → J/ψX based on 3.21 fb − 1 of data accumulated at energies from 3.645 to 3.891 GeV with the BESIII detector operated at the BEPCII collider. In analysis of the cross sections, we measured the decay branching fractions of B(ψ(3686) → J/ψX) = (64.4 ± 0.6 ± 1.6)% and B(ψ(3770) → J/ψX) = (0.5 ± 0.2 ± 0.1)% for the first time. The energy-dependent line shape of these cross sections cannot be well described by two Breit-Wigner (BW) amplitudes of the expected decays ψ (3686) → J/ψX and ψ(3770) → J/ψX. Instead, it can be better described with one more BW amplitude of the decay R(3760)→ J/ψX. Under this assumption, we extracted the R (3760) mass M R (3760 ) = 3766.2 ± 3.8 ± 0.4 MeV/...
Using a data sample of 448 × 10^6 ψ(3686) events collected with the BESIII detector operating at the...
The observed cross sections for e+e-→μ+μ- at energies from 3.8 to 4.6 GeV are measured using data sa...
Based on a sample of (1310.6±7.0)×106J/ψ events collected with the BESIII detector, we present measu...
We report a measurement of the observed cross sections of e+e-→J/ψX based on 3.21 fb-1 of data accum...
By analyzing a data set of 2.92 fb−12.92 fb−1 of e+e−e+e− collision data taken at View the MathML so...
AbstractBy analyzing a data set of 2.92 fb−1 of e+e− collision data taken at s=3.773 GeV and 106.41×...
By analyzing a data set of 2.92 fb−1 of e+e− collision data taken at s=3.773 GeV and 106.41×106 ψ(36...
By analyzing a data set of 2.92 fb-1 of e+e- collision data taken at √s = 3.773 GeV and 106.41 × 106...
AbstractUsing the BES-II detector at the BEPC Collider, we measured the lowest order cross sections ...
We report a measurement of the branching fraction for ψ(3770)→γχc1 and search for the transition ψ(3...
We report a measurement of the observed cross sections of e(+)e(-) -> J/psi X based on 3.21 fb(-1...
Using a sample of 448.1×106 ψ(3686) events collected with the BESIII detector, we perform a study of...
We report a measurement of the observed cross sections of e(+)e(-) -> J/psi X based on 3.21 fb(-1) o...
Using a data sample of 448×106 ψ(3686) events collected with the BESIII detector operating at the B...
By analyzing a data set of 2.92 fb$^{-1}$ of $e^+e^-$ collision data taken at $\sqrt s= 3.773~\rm Ge...
Using a data sample of 448 × 10^6 ψ(3686) events collected with the BESIII detector operating at the...
The observed cross sections for e+e-→μ+μ- at energies from 3.8 to 4.6 GeV are measured using data sa...
Based on a sample of (1310.6±7.0)×106J/ψ events collected with the BESIII detector, we present measu...
We report a measurement of the observed cross sections of e+e-→J/ψX based on 3.21 fb-1 of data accum...
By analyzing a data set of 2.92 fb−12.92 fb−1 of e+e−e+e− collision data taken at View the MathML so...
AbstractBy analyzing a data set of 2.92 fb−1 of e+e− collision data taken at s=3.773 GeV and 106.41×...
By analyzing a data set of 2.92 fb−1 of e+e− collision data taken at s=3.773 GeV and 106.41×106 ψ(36...
By analyzing a data set of 2.92 fb-1 of e+e- collision data taken at √s = 3.773 GeV and 106.41 × 106...
AbstractUsing the BES-II detector at the BEPC Collider, we measured the lowest order cross sections ...
We report a measurement of the branching fraction for ψ(3770)→γχc1 and search for the transition ψ(3...
We report a measurement of the observed cross sections of e(+)e(-) -> J/psi X based on 3.21 fb(-1...
Using a sample of 448.1×106 ψ(3686) events collected with the BESIII detector, we perform a study of...
We report a measurement of the observed cross sections of e(+)e(-) -> J/psi X based on 3.21 fb(-1) o...
Using a data sample of 448×106 ψ(3686) events collected with the BESIII detector operating at the B...
By analyzing a data set of 2.92 fb$^{-1}$ of $e^+e^-$ collision data taken at $\sqrt s= 3.773~\rm Ge...
Using a data sample of 448 × 10^6 ψ(3686) events collected with the BESIII detector operating at the...
The observed cross sections for e+e-→μ+μ- at energies from 3.8 to 4.6 GeV are measured using data sa...
Based on a sample of (1310.6±7.0)×106J/ψ events collected with the BESIII detector, we present measu...