preamble.tex

\usepackage{hepnicenames}
\usepackage{microtype}
\newcommand{\texorpdfstring}[2]{#1}
\usepackage[hyperref=true,backend=biber,sorting=none,firstinits=true]{biblatex}
\makeatletter
\DeclareFieldFormat{url}{%
  \mkbibacro{URL}\addcolon\space%
    {\href{#1}{\nolinkurl{#1}}}}
\DeclareFieldFormat{doi}{%
  \mkbibacro{DOI}\addcolon\space%
    {\href{http://dx.doi.org/#1}{\nolinkurl{#1}}}}
\DeclareFieldFormat{eprint:arxiv}{%
  arXiv\addcolon\space%
    {\href{http://arxiv.org/\abx@arxivpath/#1}{%
       \nolinkurl{#1}%
       \iffieldundef{eprintclass}
         {}
         {\addspace\texttt{\mkbibbrackets{\thefield{eprintclass}}}}}}
    }
\makeatother

\DeclareSourcemap{
 \maps[datatype=bibtex,overwrite=true]{
  \map{
    \step[fieldsource=Collaboration, final=true]
    \step[fieldset=usera, origfieldval, final=true]
  }
 }
}

\renewbibmacro*{author}{%
  \iffieldundef{usera}{%
    \printnames{author}%
  }{%
    \printfield{usera}, \printnames{author}%
  }%
}%

%\DeclareBibliographyCategory{Internal}
%\bibliography{main} %% LATE FIX
\renewbibmacro{in:}{}
\addbibresource{main.bib}
%\nobibintoc

\ifthenelse{\boolean{withlinenumbers}}{
  \usepackage{lineno}
}{}