\newenvironment{helv}{\fontfamily{qhv}\selectfont}{\par}

\begin{titlepage}
%\newgeometry{left=20mm,right=15mm,top=15mm,bottom=15mm}
\begin{helv}
    \begin{center}
        \begin{minipage}{0.52\textwidth}
            \includegraphics[width=\textwidth]{unifi}
        \end{minipage}
        \hfill
        \begin{minipage}{0.4\textwidth}
        \begin{flushright}
        
        \fontsize{14}{16}\selectfont
        \textbf{\textcolor{gray}{
            Scuola di\\
            Scienze Matematiche\\
            Fisiche e Naturali\\
        }}
        \vspace{12pt}
        \fontsize{12}{14}\selectfont
            Corso di Laurea Magistrale in\\
            Scienze Fisiche e Astrofisiche\\
        
        \end{flushright}
        \end{minipage}
        \vfill
    \end{center}

        \hspace*{22mm}
        \begin{minipage}{0.8\textwidth}
        \begin{flushleft}
        \fontsize{36}{42}\selectfont
        % ===== ENGLISH TITLE
        \textbf{Titolo}
        \vspace{36pt}
        
        % ===== ITALIAN TITLE
        \textbf{Title.}
            
        
        \vspace{3cm}
        {
            \fontsize{14}{0}\selectfont
            \textbf{Relatore}
            
            \vspace{5pt}
            \fontsize{16}{0}\selectfont
            Marco Capitanio
            
            \vspace{15pt}
            \fontsize{14}{0}\selectfont
            \textbf{Correlatore}
            
            \vspace{5pt}
            \fontsize{16}{0}\selectfont
            Nome Cognome
            
            \vspace{15pt}
            \fontsize{14}{0}\selectfont
            \textbf{Candidato}
            
            \vspace{5pt}
            \fontsize{16}{0}\selectfont
            Lorenzo Zolfanelli
            
            \vspace{3cm}
            \fontsize{14}{0}\selectfont
            \textbf{Anno Accademico} ~ 2019/2020
        }
        \end{flushleft}
        \end{minipage}
\end{helv}
\end{titlepage}