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\newcommand{\pom}{{I\!\!P}}
\newcommand{\reg}{{I\!\!R}}
\newcommand{\qsq}{\ensuremath{Q^2} }
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\begin{document}

\begin{titlepage}

\noindent
\begin{flushleft}
  {\bf H1prelim-14-013} ~~ Submitted to \\
 \rule[2mm]{\textwidth}{0.2mm}
 {\bf XXII International Workshop on Deep-Inelastic Scattering and Related Subjects, \\ DIS2014},  
  April 28 -- May 2, 2014,  Warsaw, Poland    \\
  Parallel Session ~~ {\bf Small-x, Diffraction and Vector Mesons} \\
 \rule{\textwidth}{0.2mm}
  {\em Electronic Access: www-h1.desy.de/publications/H1preliminary.short list.html} \\
\end{flushleft}

\vspace*{10mm}

\begin{center}
\begin{Large}
{\bf Dijet Production with Large Rapidity Gap in Diffractive Deep-inelastic Scattering at HERA} 
\vspace{2cm}

H1 Collaboration

\end{Large}
\end{center}

\vspace{2cm}

\begin{center}
{\bf Abstract}
\end{center}

\vspace{1cm}

In this measurement, the cross section for dijet production in diffractive deep-inelastic scattering is presented. 
The diffractive events are selected by requiring the presence of a Large Rapidity Gap in the forward region of the H1 detector. 
The data have been collected during the HERA-II period and correspond to an integrated luminosity of 284 $\mathrm{pb^{-1}}$. 
The data cover the range $4 < \qsq < 80\ \gevsq$ in photon virtuality. 
The phase space of the analysis is defined by two inclusive jets found by the $k_T$ cluster algorithm in the hadronic centre-of-mass system. 
The leading and sub-leading jets are required to have 
$p_{T,1}^{*}>5.5\ \gevsq$ and $p_{T,2}^{*}>4.0\ \gevsq$, respectively and to lie within 
%the LAr calorimeter acceptance, i.e. 
the pseudorapidity range $-1<\eta_{1,2} < 2$. 
The phase space of the measurement is specified in detail in Table \ref{table:ps}.
Differential cross sections are compared to QCD Next-to-leading order calculations based on diffractive parton distribution functions
extracted in inclusive diffractive measurements. 

\vspace{1cm}
\end{titlepage}
\begin{table}[h!]
\begin{center}
\begin{tabular}{|l|}
\hline
$4 < Q^{2} < 80 \ \mathrm{GeV^{2}}$ \\
$0.1 < y < 0.7$ \\
\hline
$p_{T,1}^{*} > 5.5 \ \mathrm{GeV} $\\
$p_{T,2}^{*} > 4.0 \ \mathrm{GeV} $ \\
$-1 < \eta_{1,2} < 2$ \\
\hline
$x_{\pom} < 0.03$ \\
$|t|<1 \ \mathrm{GeV^{2}}$ \\
$M_{Y} < 1.6 \ \mathrm{GeV} $ \\
\hline
\end{tabular}
\end{center}
\caption{Phase space of the diffractive DIS dijet measurement.}
\label{table:ps}
\end{table}

\newpage

\begin{figure}[t]
\hspace{1cm}\includegraphics[bb=194bp  250bp 494bp 550bp, width=.5\textwidth]{H1prelim-14-014.fig1a.eps}
\includegraphics[bb=100bp  250bp 400bp 550bp, width=.5\textwidth]{H1prelim-14-014.fig1b.eps}
\vspace{2cm}
\caption{Diffractive dijet differential cross section as a function of $\langle p_{T}^{*}\rangle$ and $\qsq$. 
	The inner error bars of the data points represent the statistical uncertainty while the outer error bars include 
        the systematic uncertainties added in square. The NLO QCD prediction based on the DPDF set H1 2006 B is displayed as the white line with 
	the inner band (orange) indicating the uncertainty of hadronization and DPDF fit added 
        in square. The outer band (red) includes the QCD scale uncertainty.}
\end{figure}

\newpage
\begin{figure}[t]
\hspace{1cm}\includegraphics[bb=194bp  250bp 494bp 550bp, width=.5\textwidth]{H1prelim-14-014.fig2a.eps}
\includegraphics[bb=100bp  250bp 400bp 550bp, width=.5\textwidth]{H1prelim-14-014.fig2b.eps}
\vspace{2cm}
\caption{Diffractive dijet differential cross section as a function of $\log(\xpom)$ and $\zpom$.
        The inner error bars of the data points represent the statistical uncertainty while the outer error bars include
        the systematic uncertainties added in square. The NLO QCD prediction based on the DPDF set H1 2006 B is displayed as the white line with
        the inner band (orange) indicating the uncertainty of hadronization and DPDF fit added
        in square. The outer band (red) includes the QCD scale uncertainty.}
\end{figure}


\begin{figure}[t]
\hspace{1cm}\includegraphics[bb=194bp  250bp 494bp 550bp, width=.5\textwidth]{H1prelim-14-014.fig3a.eps}
\includegraphics[bb=100bp  250bp 400bp 550bp, width=.5\textwidth]{H1prelim-14-014.fig3b.eps}
\vspace{2cm}
\caption{Diffractive dijet differential cross section as a function of $p_{T,1}^{*}$ and $p_{T,2}^{*}$.
        The inner error bars of the data points represent the statistical uncertainty while the outer error bars include
        the systematic uncertainties added in square. The NLO QCD prediction based on the DPDF set H1 2006 B is displayed as the white line with
        the inner band (orange) indicating the uncertainty of hadronization and DPDF fit added
        in square. The outer band (red) includes the QCD scale uncertainty.}
\end{figure}

\begin{figure}[t]
\hspace{1cm}\includegraphics[bb=194bp  250bp 494bp 550bp, width=.5\textwidth]{H1prelim-14-014.fig4a.eps}
\includegraphics[bb=100bp  250bp 400bp 550bp, width=.5\textwidth]{H1prelim-14-014.fig4b.eps}
\vspace{2cm}
\caption{Diffractive dijet differential cross section as a function of $y$ and $\Delta\eta^{*}=|\eta_{1}^{*}-\eta_{2}^{*}|$.
        The inner error bars of the data points represent the statistical uncertainty while the outer error bars include
        the systematic uncertainties added in square. The NLO QCD prediction based on the DPDF set H1 2006 B is displayed as the white line with
        the inner band (orange) indicating the uncertainty of hadronization and DPDF fit added
        in square. The outer band (red) includes the QCD scale uncertainty.}
\end{figure}


\end{document}