Search for a strangeonium-like structure $Z_s$ decaying into $\varphi \pi$ and a measurement of the cross section $e^{+}{e}^{-}\to \varphi \pi \pi$

M. Ablikim, M. N. Achasov, S. Ahmed +432

Using a data sample of $e^{+}{e}^{-}$ collision data corresponding to an integrated luminosity of 108 pb${}^{-1}$ collected with the BESIII detector at a center-of-mass energy of 2.125 GeV…