4 papers
Observation of the -annihilation process and measurement of in decays
BESIII Collaboration, M. Ablikim, M. N. Achasov +650
We present the first amplitude analysis and branching fraction measurement of the decay , using collision data collected with the BESIII detector…
Measurement of the branching fraction of via
BESIII Collaboration, M. Ablikim, M. N. Achasov +640
Based on of collision data taken at center-of-mass energies between 4.237 and 4.699 GeV with the BESIII detector, we study the leptonic de…
A new upper limit on the axion-photon coupling with an extended CAST run with a Xe-based Micromegas detector
CAST Collaboration, K. Altenmüller, V. Anastassopoulos +62
Hypothetical axions provide a compelling explanation for dark matter and could be emitted from the hot solar interior. The CERN Axion Solar Telescope (CAST) has been searching for…
Measurements of Born Cross Sections for and at 4918.0 and 4950.9 MeV
BESIII Collaboration, M. Ablikim, M. N. Achasov +630
Using collision data collected with the BESIII detector operating at the BEPCII collider, the Born cross sections of and…