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hep-ex2022
Measurements of the electric and magnetic form factors of the neutron for time-like momentum transfer
BESIII Collaboration, M. Ablikim, M. N. Achasov +589
We present the first measurements of the electric and magnetic form factors of the neutron in the time-like (positive ) region as function of four-momentum transfer. We explor…
hep-ex2022★ 17 cited
Search for a massless dark photon in decay
BESIII Collaboration, M. Ablikim, M. N. Achasov +569
A search for a massless dark photon is conducted using 4.5 of collision data collected at center-of-mass energies between 4.600 and 4.699 $…
hep-ex2022★ 5 cited
Observation of
BESIII Collaboration, M. Ablikim, M. N. Achasov +566
By analyzing events collected with the BESIII detector operating at the BEPCII collider, the decays of (, 1 and 2) ar…