4 papers
First Measurement of the Decay
BESIII Collaboration, M. Ablikim, M. N. Achasov +693
We report the first measurement of the semileptonic decay , using a sample of annihilation data corresponding to an integrated luminosity of $…
Measurement of the transition form factor through decay
BESIII Collaboration, M. Ablikim, M. N. Achasov +678
Based on a sample of events collected at BESIII, the transition form factor of the meson is extracted by analyzing $J/ψ\toγη',~η'\toπ^+π^…
Measurement of the cross section at GeV
BESIII Collaboration, M. Ablikim, M. N. Achasov +645
The process is studied at 20 center-of-mass energies ranging from 2.1000 to 3.0800 GeV using 636.8 pb of data collected with the BESIII detecto…
Study of the decay
BESIII Collaboration, M. Ablikim, M. N. Achasov +615
Based on events collected with the BESIII detector operating at the BEPCII collider, a partial wave analysis of the decay is p…