Influence of $\varphi$ mesons on negative kaons in Ni+Ni collisions at 1.91A GeV beam energy

K. Piasecki, N. Herrmann, R. Averbeck +63

$\varphi$ and K${}^{-}$ mesons from Ni+Ni collisions at the beam energy of 1.91A GeV have been measured by the FOPI spectrometer, with a trigger selecting central and semi-central events amo…