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hep-ex2025
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 $…
hep-ex2025
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^…