\documentclass[a4paper,12pt]{article}

% Packages
\usepackage[margin=2cm]{geometry}
\usepackage{graphicx}
\usepackage{setspace}
\usepackage{hyperref}
\usepackage{titlesec}
\usepackage{ulem}       % for underline of author
\usepackage{array}
\usepackage{caption}

% Title formatting
\titleformat{\section}{\large\bfseries}{}{0pt}{}

% Custom font sizes
\newcommand{\titlesize}{\fontsize{14pt}{16pt}\selectfont}
\newcommand{\authorsize}{\fontsize{12pt}{14pt}\selectfont}
\newcommand{\affsize}{\fontsize{10pt}{12pt}\selectfont}
\newcommand{\bodysize}{\fontsize{12pt}{14pt}\selectfont}
\newcommand{\capsize}{\fontsize{10pt}{12pt}\selectfont}

\begin{document}

% --------------------- TITLE ---------------------
\begin{center}
    {\titlesize \textbf{ABSTRACT TEMPLATE FOR THE 18th QRS WORKSHOP}}\\[12pt]

% --------------------- AUTHORS ---------------------
    {\authorsize
    \uline{A. One}$^{\,(a),*}$,
    B. Two$^{\,(b)}$,
    C. Three$^{\,(a)}$
    }\\[6pt]

% --------------------- AFFILIATIONS ---------------------
    {\affsize
    $^{(a)}$\,Faculty of Applied Physics and Mathematics,  
    Gdańsk University of Technology, Poland\\
    $^{(b)}$\,Deutsche Elektronen-Synchrotron DESY, Hamburg, Germany\\
    $^{*}$\,qrs2026@pg.edu.pl
    }
\end{center}

\vspace{10pt}

% --------------------- ABSTRACT BODY ---------------------
{\bodysize

This is a sample abstract for the 18th biennial Quantum Reactive Scattering (QRS) Workshop taking place in Gdańsk, Poland from 22nd to 28th of June 2026. All abstracts should be uploaded to the conference website in the PDF format until May 24th. Make sure to change the “AbstractTemplate” in the filename with your surname before uploading the abstract. 

Abstracts must contain a title, the authors’ list and their affiliations. Among the authors, the corresponding author attending the meeting should be underlined. The total abstract length should not exceed one A4 page, including figures and tables; the text length should be less than 2000 characters (spaces included). We encourage authors to include a figure (graphical abstract). References in the text must be given by numbers in square brackets~[1]. The list of references is placed at the end of the abstract text.

}

% --------------------- FIGURE ---------------------
\begin{figure}[h!]
    \centering
    \includegraphics[width=0.45\textwidth]{logo1.png}
    \caption{\capsize QRS 2026 logo.}
\end{figure}

% --------------------- TABLE ---------------------
\begin{table}[h!]
\centering
\capsize
\begin{tabular}{c c c c c c c c}
    \hline
    & Title & Authors & Affiliations & e-mail & Body text & Captions & Ref. \\
    \hline
    Size & 14 pt & 12 pt & 10 pt & 10 pt & 12 pt & 10 pt & 10 pt \\
    \hline
\end{tabular}
\caption{\capsize Font sizes for the 18th QRS Workshop abstract elements.}
\end{table}

% --------------------- REFERENCES ---------------------
\vspace{6pt}
{\capsize
\section*{References}
[1] John Z. H. Zhang and William H. Miller, \textit{J. Chem. Phys.} \textbf{91}, 1528–1547 (1989).
}

\end{document}
