Measurement of cross sections for $e^{+}{e}^{-}\to {\mu }^{+}{\mu }^{-}$ at center-of-mass energies from 3.80 to 4.60 GeV

BESIII Collaboration

The observed cross sections for $e^{+}{e}^{-}\to {\mu }^{+}{\mu }^{-}$ at energies from 3.8 to 4.6 GeV are measured using data samples taken with the BESIII detector operated at the BEPCII col…