\relax 
\citation{DGLAP}
\citation{BFKL}
\citation{CCFM}
\citation{F2}
\citation{F2-theory-MRST,F2-theory-CT,F2-theory-NNPDF,F2-theory-ABM}
\citation{dijet,forw-incl-jet-1}
\citation{tr-energy-flow-1,tr-energy-flow-2}
\citation{forw-jet-h1-zeus1,forw-jet-h1-zeus2,forw-jet-h1-zeus3}
\citation{fwd-pi}
\citation{Kuhlen-pt}
\citation{pt-old}
\@writefile{toc}{\contentsline {section}{\numberline {1}Introduction}{4}}
\@writefile{lof}{\contentsline {figure}{\numberline {1}{\ignorespaces Generic diagram for deep-inelastic $ep$ scattering at small $x$. The transverse momenta of the emitted gluons are labeled as $p_{T,i}$, while the proton longitudinal momentum fractions and the transverse momenta carried by the propagating gluons are denoted by $x_i$ and $k_{T,i}$, respectively.}}{4}}
\newlabel{fig:ladder}{{1}{4}}
\citation{pt-old}
\citation{RAPGAP}
\citation{DJANGOH}
\citation{ARIADNE}
\citation{CDM-BFKL}
\citation{CASCADE}
\citation{CASCADE}
\citation{herwig}
\citation{POWHEG-DIS}
\citation{CoherentPB1,CoherentPB2}
\@writefile{toc}{\contentsline {section}{\numberline {2}QCD models}{5}}
\newlabel{sec-QCDmodels}{{2}{5}}
\citation{Phojet}
\citation{Phojet1}
\citation{cteq6lo}
\citation{A0}
\citation{MRST}
\citation{Lund}
\citation{JETSETandPYTHIA}
\citation{PYTHIA}
\citation{ALEPH}
\citation{profftune}
\citation{clustermodel1}
\citation{HERACLES}
\citation{GEANT}
\citation{myThesis}
\citation{myThesis}
\citation{H1det1,H1det2,SPACAL}
\@writefile{toc}{\contentsline {section}{\numberline {3}Experimental method}{6}}
\@writefile{toc}{\contentsline {subsection}{\numberline {3.1}H1 detector}{6}}
\citation{CST34,CST35}
\citation{CIP}
\citation{FTDJINST_FromKarin}
\citation{CST34,CST35}
\citation{BST37}
\citation{FST36}
\citation{SPACAL}
\citation{test-beam-Spacal}
\citation{Lar}
\citation{test-beam-Lar}
\citation{eSigma}
\citation{hadroo2}
\@writefile{toc}{\contentsline {subsection}{\numberline {3.2}Event reconstruction}{7}}
\citation{myThesis}
\citation{myThesis}
\@writefile{toc}{\contentsline {subsection}{\numberline {3.3}Data selection}{8}}
\@writefile{toc}{\contentsline {subsection}{\numberline {3.4}Definition of experimental observables}{8}}
\citation{Kuhlen-pt}
\citation{forw-jet-h1-zeus3}
\@writefile{lof}{\contentsline {figure}{\numberline {2}{\ignorespaces  The two pseudorapidity regions analysed in this paper. The region $0 < \eta ^* < 1.5$ and $1.5 < \eta ^* < 5$, are denoted as ``central'' and ``current'' regions, respectively.}}{9}}
\newlabel{fig:eta-feydiag}{{2}{9}}
\@writefile{toc}{\contentsline {section}{\numberline {4}Data corrections}{9}}
\citation{ElCalib}
\citation{HFSCalib}
\@writefile{lot}{\contentsline {table}{\numberline {1}{\ignorespaces Phase space for charged particles.}}{10}}
\newlabel{tab:sel-genlev}{{1}{10}}
\@writefile{toc}{\contentsline {section}{\numberline {5}Systematic uncertainties}{10}}
\citation{myThesis,FTDJINST_FromKarin}
\citation{HERAPDF10}
\citation{CTEQ66M}
\citation{GRV98}
\@writefile{toc}{\contentsline {section}{\numberline {6}Results}{11}}
\@writefile{toc}{\contentsline {subsection}{\numberline {6.1}Charged particle densities as a function of pseudorapidity}{11}}
\citation{ALEPH}
\citation{profftune}
\@writefile{toc}{\contentsline {subsection}{\numberline {6.2}Charged particle densities as a function of transverse momentum}{13}}
\newlabel{chap-result}{{6.2}{13}}
\@writefile{toc}{\contentsline {section}{\numberline {7}Conclusion}{13}}
\@writefile{toc}{\contentsline {section}{\numberline {8}Acknowledgement}{14}}
\bibcite{DGLAP}{1}
\bibcite{BFKL}{2}
\bibcite{CCFM}{3}
\bibcite{F2}{4}
\bibcite{F2-theory-MRST}{5}
\bibcite{F2-theory-CT}{6}
\bibcite{F2-theory-NNPDF}{7}
\bibcite{F2-theory-ABM}{8}
\bibcite{dijet}{9}
\bibcite{forw-incl-jet-1}{10}
\bibcite{tr-energy-flow-1}{11}
\bibcite{tr-energy-flow-2}{12}
\bibcite{forw-jet-h1-zeus1}{13}
\bibcite{forw-jet-h1-zeus2}{14}
\bibcite{forw-jet-h1-zeus3}{15}
\bibcite{fwd-pi}{16}
\bibcite{Kuhlen-pt}{17}
\bibcite{pt-old}{18}
\bibcite{RAPGAP}{19}
\bibcite{DJANGOH}{20}
\bibcite{ARIADNE}{21}
\bibcite{CDM-BFKL}{22}
\bibcite{CASCADE}{23}
\bibcite{herwig}{24}
\bibcite{POWHEG-DIS}{25}
\bibcite{CoherentPB1}{26}
\bibcite{CoherentPB2}{27}
\bibcite{Phojet}{28}
\bibcite{Phojet1}{29}
\bibcite{cteq6lo}{30}
\bibcite{A0}{31}
\bibcite{MRST}{32}
\bibcite{Lund}{33}
\bibcite{JETSETandPYTHIA}{34}
\bibcite{PYTHIA}{35}
\bibcite{ALEPH}{36}
\bibcite{profftune}{37}
\bibcite{clustermodel1}{38}
\bibcite{HERACLES}{39}
\bibcite{GEANT}{40}
\bibcite{myThesis}{41}
\bibcite{H1det1}{42}
\bibcite{H1det2}{43}
\bibcite{SPACAL}{44}
\bibcite{CST34}{45}
\bibcite{CST35}{46}
\bibcite{CIP}{47}
\bibcite{FTDJINST_FromKarin}{48}
\bibcite{BST37}{49}
\bibcite{FST36}{50}
\bibcite{test-beam-Spacal}{51}
\bibcite{Lar}{52}
\bibcite{test-beam-Lar}{53}
\bibcite{eSigma}{54}
\bibcite{hadroo2}{55}
\bibcite{ElCalib}{56}
\bibcite{HFSCalib}{57}
\bibcite{HERAPDF10}{58}
\bibcite{CTEQ66M}{59}
\bibcite{GRV98}{60}
\@writefile{lot}{\contentsline {table}{\numberline {2}{\ignorespaces Charged particle densities as a function of $\eta ^*$ for \unhbox \voidb@x \hbox {$0<p_T^* < 1$ GeV} with relative statistical (stat.) and systematic (sys.) uncertainties given in per cent. The phase space is defined in table 1.}}{19}}
\newlabel{tab:pt-curr}{{2}{19}}
\@writefile{lot}{\contentsline {table}{\numberline {3}{\ignorespaces Charged particle densities as a function of $\eta ^*$ for \unhbox \voidb@x \hbox {$1 < p_T^* < 10$ GeV} with relative statistical (stat.) and systematic (sys.) uncertainties given in per cent. The phase space is defined in table 1.}}{19}}
\newlabel{tab:pt-curr1}{{3}{19}}
\@writefile{lot}{\contentsline {table}{\numberline {4}{\ignorespaces Charged particle densities as a function of $\eta ^*$ for \unhbox \voidb@x \hbox {$0<p_T^* < 1$ GeV} for different $Q^2$ and $x$ intervals with relative statistical (stat.) and systematic (sys.) uncertainties given in per cent. The phase space is defined in table 1.}}{20}}
\newlabel{tab:pt-curr2}{{4}{20}}
\@writefile{lot}{\contentsline {table}{\numberline {4}{\ignorespaces continued}}{21}}
\@writefile{lot}{\contentsline {table}{\numberline {5}{\ignorespaces Charged particle densities as a function of $\eta ^*$ for \unhbox \voidb@x \hbox {$1 < p_T^* < 10$ GeV} for different $Q^2$ and $x$ intervals with relative statistical (stat.) and systematic (sys.) uncertainties given in per cent. The phase space is defined in table 1.}}{22}}
\newlabel{tab:pt-curr3}{{5}{22}}
\@writefile{lot}{\contentsline {table}{\numberline {5}{\ignorespaces continued}}{23}}
\@writefile{lot}{\contentsline {table}{\numberline {6}{\ignorespaces Charged particle densities as a function as a function of $p_T^*$ in the region \unhbox \voidb@x \hbox {$0<\eta ^* <1.5$} shown with relative statistical (stat.) and systematic (sys.) uncertainties given in per cent. The phase space is defined in table 1.}}{24}}
\newlabel{tab:pt-curr4}{{6}{24}}
\@writefile{lot}{\contentsline {table}{\numberline {7}{\ignorespaces Charged particle densities as a function as a function of $p_T^*$ in the region \unhbox \voidb@x \hbox {$1.5<\eta ^* <5$} shown with relative statistical (stat.) and systematic (sys.) uncertainties given in per cent. The phase space is defined in table 1.}}{24}}
\newlabel{tab:pt-curr5}{{7}{24}}
\@writefile{lot}{\contentsline {table}{\numberline {8}{\ignorespaces Charged particle densities as a function of $p_T^*$ in the region \unhbox \voidb@x \hbox {$0<\eta ^* <1.5$} for different $Q^2$ and $x$ intervals shown with relative statistical (stat.) and systematic (sys.) uncertainties given in per cent. The phase space is defined in table 1.}}{25}}
\newlabel{tab:pt-curr6}{{8}{25}}
\@writefile{lot}{\contentsline {table}{\numberline {8}{\ignorespaces continued}}{26}}
\@writefile{lot}{\contentsline {table}{\numberline {9}{\ignorespaces Charged particle densities as a function of $p_T^*$ in the region \unhbox \voidb@x \hbox {$1.5<\eta ^* <5$} for different $Q^2$ and $x$ intervals shown with relative statistical (stat.) and systematic (sys.) uncertainties given in per cent. The phase space is defined in table 1.}}{27}}
\newlabel{tab:pt-curr7}{{9}{27}}
\@writefile{lot}{\contentsline {table}{\numberline {9}{\ignorespaces continued}}{28}}
\@writefile{lot}{\contentsline {table}{\numberline {9}{\ignorespaces continued}}{29}}
\@writefile{lof}{\contentsline {figure}{\numberline {3}{\ignorespaces Charged particle density as a function of $\eta ^*$ for (a) \unhbox \voidb@x \hbox {$p_T^*< 1$ GeV} and for (b) \unhbox \voidb@x \hbox {$1< p_T^*< 10$ GeV} compared to {\sc  Rapgap} predictions with different proton PDFs. The predictions are obtained using the ALEPH tune.}}{30}}
\newlabel{fig:eta-PDF-RAPGAP}{{3}{30}}
\@writefile{lof}{\contentsline {figure}{\numberline {4}{\ignorespaces Charged particle density as a function of $\eta ^*$ for (a) $p_T^*< 1$ GeV for (b) \unhbox \voidb@x \hbox {$1< p_T^*< 10$ GeV} compared to {\sc  Rapgap} predictions for three different sets of fragmentation parameters. The predictions are obtained using CTEQ6L(LO) PDF.}}{30}}
\newlabel{fig:eta-aleph-prof-def}{{4}{30}}
\@writefile{lof}{\contentsline {figure}{\numberline {5}{\ignorespaces Charged particle density as a function of $\eta ^*$ for (a) $p_T^*< 1$ GeV for (b) \unhbox \voidb@x \hbox {$1< p_T^*< 10$ GeV} compared to {\sc  Djangoh}, {\sc  Rapgap}, Herwig++ and {\sc  Cascade} Monte Carlo predictions.}}{31}}
\newlabel{fig:eta-PS}{{5}{31}}
\@writefile{lof}{\contentsline {figure}{\numberline {6}{\ignorespaces Charged particle density as a function of $\eta ^*$ for $p_T^*< 1$ GeV for eight intervals of $Q^{2}$ and $x$ compared to {\sc  Djangoh}, {\sc  Rapgap}, Herwig++ and {\sc  Cascade} Monte Carlo predictions.}}{32}}
\newlabel{fig:eta-soft}{{6}{32}}
\@writefile{lof}{\contentsline {figure}{\numberline {7}{\ignorespaces Charged particle density as a function of $\eta ^*$ for $1< p_T^*< 10$ GeV for eight intervals of $Q^{2}$ and $x$ compared to {\sc  Djangoh}, {\sc  Rapgap}, Herwig++ and {\sc  Cascade} Monte Carlo predictions.}}{33}}
\newlabel{fig:eta-hard}{{7}{33}}
\@writefile{lof}{\contentsline {figure}{\numberline {8}{\ignorespaces Charged particle density as a function of $p_T^*$ in the ranges (a) $0 <\eta ^*< 1.5$ and (b) $1.5 <\eta ^*< 5$ compared to {\sc  Djangoh}, {\sc  Rapgap}, Herwig++ and {\sc  Cascade} Monte Carlo predictions. The ratios of MC predictions to the measurements are shown on the bottom of the figure.}}{34}}
\newlabel{fig:pt-mcdata-cen-RDC}{{8}{34}}
\@writefile{lof}{\contentsline {figure}{\numberline {9}{\ignorespaces Charged particle density as a function of $p_T^*$ in the range $0 <\eta ^*< 1.5$ for eight intervals of $Q^{2}$ and $x$ compared to {\sc  Djangoh}, {\sc  Rapgap}, Herwig++ and {\sc  Cascade} Monte Carlo predictions.}}{35}}
\newlabel{fig:pt-bins-cen}{{9}{35}}
\@writefile{lof}{\contentsline {figure}{\numberline {10}{\ignorespaces Charged particle density as a function of $p_T^*$ in the range $1.5 <\eta ^*< 5$ for eight intervals of $Q^{2}$ and $x$ compared to {\sc  Djangoh}, {\sc  Rapgap}, Herwig++ and {\sc  Cascade} Monte Carlo predictions.}}{36}}
\newlabel{fig:pt-bins-curr}{{10}{36}}