Precise simulation of the initial-state QCD activity associated with $Z$-boson production in hadron collisions

Shigeru Odaka

The ${\varphi }_{\eta }^{\ast }$ distribution of the $Z/{\gamma }^{\ast }\to {\ell }^{+}{\ell }^{-}$ production in hadron collisions is simulated using a leading-order event generator, GR@PPA. The initial-sta…