Forward electron study with the HGTD

A study of the forward region of the ATLAS detector, using $Z\rightarrow ee$, $\mu=200$ data, was performed with the goal of decreasing the pile-up effect and improving the reconstruction resolution for electrons using a timing detector (HGTD) in front of the end-cap calorimeters under consideration for the ATLAS upgrade at the high luminosity LHC. The report focuses on the $2.5<|\eta|<3.5$ region with the \emph{timing} and \emph{pre-shower} configuration of the HGTD as well as different $p_T$-cuts. Using the HGTD data the resolution was generally improved for all configuration by 12-15\% except with the \emph{timing} configuration at $2.5<|\eta|<3.0$ which remained unchanged within the statistical errors.