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%% Sample TeX file for the HRMS Dijon 2023 abstracts
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\documentclass[11pt]{article}

\usepackage{hrms}  %% Page settings, style ... for the HRMS abstract book.

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\title{TRANSITION FREQUENCIES WITH MHZ ACCURACY OF LINES WITH INTENSITY LESS THAN 10$^{-29}$ CM/MOLECULE }

%% Note that \author and \address macros must be paired.
%% The names of authors must also appear IN CAPITALS.
%% The name(s) of author(s) presenting the work is(are) usually underlined.

\author{\FirstName S. \LastName KASSI, \underline{\FirstName H. \LastName FLEURBAEY},  \FirstName A. \LastName CAMPARGUE}
\address{Univ. Grenoble Alpes, CNRS, LIPhy, 38000 Grenoble, France}

%% The \FirstName and \LastName macros are mandatory for each author
%% to make sure that the author index is properly auto-generated.
%% Otherwise, these macros do nothing in particular.

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%%\author{\underline{\FirstName G. \LastName HHHHH-IIIIIII Jr},
  %%\FirstName J. \LastName KKKKKKKKKK,
  %%\underline{\FirstName L. \LastName MM NN PPPPPP}}
%%\address{Address of the institution for the second author(s)}

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%% Place below other \usepackage{ ... }, if you need other packages.
%% See http://www.tug.org/texlive/doc.html for a description of available packages.

%% The macros below will change the page head and foot.
%% Please, do not modify the content of the \fancyhead macro nor the \fancyfoot line.
\usepackage{fancyhdr}
\pagestyle{fancy}
\fancyhead[C]{{\footnotesize \textit{HRMS, 28th Colloquium, Dijon, France,
  Aug. 28 - Sept. 1, 2023}}}
\fancyfoot[C]{}
\renewcommand{\headrulewidth}{0.6pt}
\renewcommand{\footrulewidth}{0.6pt}

%% The hyperref package allows to include hyperlinks in a document.
%% See the instructions for abstract submission for more details.
%% WARNING: Make sure that this package comes LAST since it re-defines many LaTeX macros.
\usepackage[colorlinks=true,urlcolor=blue,linkcolor=blue,citecolor=blue]{hyperref}
\voffset -.65 cm

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\category {14}
\begin{document}

\maketitle  %% This will also build the list of author(s) and addresse(s).

%% Index macro(s): see the abstract samples and the instructions
%% Remove the %% to account for the index item(s)
%% \index{Item1}
%% \index{Item2}

%% Place the body of your abstract below.
Series of spectra of the O(3), O(2) and Q(2) transitions of D$_2$ were measured near 8500 cm$^{-1}$, by comb-referenced cavity ring-down spectroscopy. 
These very weak electric-quadrupole transitions are the first to be detected in the second overtone band of D$_2$. 
Their calculated intensity ranges between 1.0 and 8.7\times10$^{-30}$ cm/molecule. Recordings performed at different pressures up to 600 Torr were made challenging by strong interference with water lines which are six orders of magnitude stronger than the D$_2$ lines in the considered region. 

The transition frequencies of the three D$_2$ transitions were determined applying a fitting procedure using beyond-Voigt profiles including strong Dicke narrowing. Considering statistical fit errors and possible biases due to the interference with water lines, total uncertainties on the frequencies extrapolated at zero pressure were estimated below 5 MHz. The derived experimental frequencies and intensities are compared to ab initio values. An overall agreement within the experimental error bars is achieved confirming the accuracy of the theoretical calculations. 


\end{document}
