From the 1 of 8 linked papers with an AI index.
8 papers
Measurement of the double Dalitz decay
BESIII Collaboration, M. Ablikim, M. N. Achasov +689
The BESIII experiment measured the rare decay of the eta meson into two electron-positron pairs, determining its branching fraction to be about 2.6 × 10⁻⁵.
Evidence of
BESIII Collaboration, M. Ablikim, M. N. Achasov +766
We report the first evidence for the hadronic transition using a data sample of collected at ~GeV with the BESIII…
Strong and electromagnetic amplitudes, direct and isospin asymmetries in the decays
BESIII Collaboration, M. Ablikim, M. N. Achasov +766
Using annihilation data collected at 26 center-of-mass energy points between 3000.00 and with the BESIII detector, corresponding to a total integrated…
Measurement of branching fractions of and
BESIII Collaboration, M. Ablikim, M. N. Achasov +685
By analyzing collision data corresponding to an integrated luminosity of 7.33~fb collected with the BESIII detector at center-of-mass energies ranging from 4.128 to…
Measurement of the branching fraction of
BESIII Collaboration, M. Ablikim, M. N. Achasov +684
The branching fraction of the electromagnetic Dalitz decay is measured with an collision data sample collected by the BESIII experi…
Study of in the amplitude analysis of
BESIII Collaboration, M. Ablikim, M. N. Achasov +772
We present the first amplitude analysis and branching fraction measurement of decay. The analysis uses a dataset corresponding to an in…