Determination of the strong coupling constant and the Collins-Soper kernel from the energy-energy correlator in $e^{+}{e}^{-}$ collisions

Zhong-Bo Kang, Jani Penttala, Congyue Zhang

We have conducted the first simultaneous global fit of the strong coupling constant ${\alpha }_s$ and the Collins-Soper (CS) kernel using the energy-energy correlators (EEC) of $e^{+} e^{-…