3 papers
hep-ex2025
Search for sub-GeV invisible particles in inclusive decays of to
BESIII Collaboration, M. Ablikim, M. N. Achasov +696
A search for an invisible particle, , with a mass between 0 and 0.96 , is performed in the process using $(8774.0\pm39.4)\times…
hep-ex2025
Observation of , Test of Lepton Flavor Universality and First Angular Analysis of
BESIII Collaboration, M. Ablikim, M. N. Achasov +688
We report a study of the semileptonic decays () based on of collision data collected at the center-of-m…
hep-ex2025
Observation of an Altered Line-shape in due to the Triangle Loop Rescattering Effect
BESIII Collaboration, M. Ablikim, M. N. Achasov +697
Using 20.3~ of collision data taken with the BESIII detector at the center-of-mass energy 3.773~GeV, we report the first amplitude analysis of the hadro…