3 papers
hep-ex2026
Precision measurements of semleptonic decays and ()
BESIII Collaboration, M. Ablikim, M. N. Achasov +773
The branching fractions of , , , and are measured to be $(2.950\pm0.017_{\rm stat.}\pm 0.017_{\…
hep-ex2026
First energy scan measurement of around the resonance
BESIII Collaboration, M. Ablikim, M. N. Achasov +684
We report the precise energy scan measurement of the cross section lineshape of . The analysis is based on collision data corresponding to an int…
hep-ex2026
Amplitude analysis and branching fraction measurement of the decay
BESIII Collaboration, M. Ablikim, M. N. Achasov +770
An amplitude analysis of the singly Cabibbo-suppressed decay is performed, for the first time, to determine the relative magnitudes and phases of differ…