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\begin{titlepage}

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\multicolumn{4}{l}{{\bf
                XXII International Symposium on Lepton-Photon Interactions at High Energy},
                June~30,~2005,~Uppsala} \\
                 & Abstract:        & {\bf 420}    &\\
                 & Session: & {\bf Electroweak physics and beyond}   &\\ \hline
 & \multicolumn{3}{r}{\footnotesize {\it
    www-h1.desy.de/h1/www/publications/conf/conf\_list.html}} \\[.2em]
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% \noindent
% Date:               \\
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%\begin{flushright}
%H1prelim-04-063\\
%July 28, 2004
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\begin{center}
\begin{Large}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
{\bf \boldmath 
   Multi-lepton events at HERA and a General Search for New Phenomena at Large Transverse Momentum}
% Analysis of High $ P_T$  HERA II Data }
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\vspace{2cm}

H1 Collaboration

\end{Large}
\end{center}

\vspace{1cm}

\begin{abstract}
\noindent

Searches for multi--lepton events and a general search for new
phenomena are performed on a data sample collected in $e^\pm p$
collisions with the H1 detector at HERA in the period 1994--2004. This
data sample corresponds to an integrated luminosity of 163 pb$^{-1}$,
which includes 45 pb$^{-1}$ of $e^{+}p$ data taken in 2004.
An update of the search for multi--lepton events using 21 pb$^{-1}$ of $e^{-}p$ data recently taken in 2005 is also presented.

\end{abstract}


\vspace{1.5cm}

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%\clearpage

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\section{Multi-lepton Analysis}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%


Multi-lepton (electron or muon) production is measured at high
transverse momentum using the full HERA data sample. In addition to an
update of the published HERA I multi-electron and multi-muon analyses, new topologies with high $P_T$ electrons and muons are investigated here for the
first time. Yields of di-lepton and tri-lepton events are measured and
a general good agreement is found with the Standard Model predictions.
However, combining all channels, four events are observed with a scalar sum of lepton transverse momenta greater than 100 GeV, compared to a Standard Model expectation
of 0.61 $\pm$ 0.11.


%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\subsection{Introduction}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%


Within the Standard Model (SM) the production of multi-lepton events
in $ep$ collisions mainly proceeds via photon-photon
interactions\cite{Vermaseren:1982cz}. Precise cross-section
measurements of both electron (e) and muon ($\mu$) pair production at
high transverse momentum ($P_T$) have already been performed by the H1
collaboration \cite{Aktas:2003jg,Aktas:2003sz}. At large di-electron
masses, an excess of events is observed in both the di-electron and
tri-electron samples \cite{Aktas:2003jg}.


The present analysis extends our previous measurements to the e$\mu$
and e$\mu\mu$ topologies and to a higher luminosity, combining new
HERA~II data taken in 2003--2004 (${\cal L} =$ 45 pb$^{-1}$) with the
previous HERA~I data sample from 1994--2000 (${\cal L} =$ 118
pb$^{-1}$). 
An extension to new $e^{-}p$ data taken in 2005 is also presented.


%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\subsection{Standard Model Processes and their Simulation}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%


Multi-lepton events are generated with the GRAPE ~\cite{Abe:2000cv}
program, which includes all electroweak matrix elements at tree level.
Multi-lepton production via $\gamma \gamma$, $\gamma Z$, $ZZ$
collisions, internal photon conversion and the decay of virtual or
real $Z$ bosons is considered. Initial and final state QED radiation
is included.  The complete hadronic final state is simulated via
interfaces to PYTHIA and SOPHIA~\cite{Mucke:1999yb} for the inelastic
and quasi-elastic regimes, respectively.  Consequently, GRAPE predicts
$ep \rightarrow \mu \mu X$ and $ep \rightarrow e e X$, as well as $ep
\rightarrow e \mu \mu X$ and $ep \rightarrow e e e X$ if the scattered
electron is detected. 
%Processes with an additional radiated photon are
%also modelled. 
The $ep \rightarrow \tau \tau X$ process is also simulated with GRAPE and its 
contribution was found to be negligible.

The dominant background contributions arise from neutral current
deep-inelastic scattering (DIS) events ($ep \rightarrow e X$)
\cite{Aktas:2003jg}. QED Compton scattering $ep \rightarrow e \gamma
X$ can also contribute. The DIS and elastic Compton processes are
simulated using the RAPGAP~\cite{Jung:1993gf} (for HERA I) or
DJANGO~\cite{Schuler:yg} (HERA II) and WABGEN~\cite{Berger:kp}
generators, respectively.

All generated events are passed through the full GEANT
\cite{Brun:1987ma} based simulation of the H1 apparatus, which takes
into account the running conditions of the different data taking
periods.


%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\subsection{Multi-lepton Event Selection}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%


The electron identification procedure follows the criteria described in
\cite{Aktas:2003jg}.  Electron candidates with energies above 5 GeV
are identified in the liquid argon and backward calorimeters, in the
range $5^\circ < \theta < 175^\circ$.  Electron candidates are
required to be isolated by demanding that they are separated from
other leptons or jets by at least 0.5 units in the
pseudorapidity-azimuth ($\eta-\phi$) plane.  In addition, the total
hadronic energy within 0.75 units in $\eta-\phi$ of the electron
direction is required to be below 2.5 \% of the electron energy.  In
the region of angular overlap between the liquid argon calorimeter and
the central drift chambers ($20^\circ < \theta < 150^\circ$), the
calorimetric electron identification is complemented by tracking
conditions.  In this region it is required that a high quality track
geometrically matches the electromagnetic cluster within a distance of
closest approach to the cluster centre-of-gravity of $12$~cm.  No
other good track is allowed within  $0.5$ units in $\eta-\phi$ around the electron direction.  In the central region ($20^\circ < \theta < 150^\circ$)
the distance between the first measured point in the central drift
chambers and the beam axis is required to be below $30$~cm in order to
reject photons that convert late in the central tracker material. In
addition, in this central region, the transverse momentum measured
from the associated track $P_T^{e_{tk}}$ is required to match the
calorimetric measurement $P_T^e$ with $1/P_T^{e_{tk}} - 1/P_T^e <
0.02$~GeV$^{-1}$. This criteria is relaxed to 0.04 for the new HERA II
data 
%to match the changes of calibrations.  
since a final calibration and alignment have not been performed.
Due to the higher material
density in the forward region ($5^\circ < \theta < 20^\circ$) the
electrons are more likely to shower and therefore no track conditions
are required. The same applies in the backward region ($150^\circ <
\theta < 175^\circ$). The electron energy threshold is raised
to 10~GeV in the forward region.


Muon candidates are identified with a $P_T$ $>$ 2 GeV in the range
$20^\circ < \theta < 160^\circ$, with a similar procedure to that described
in \cite{Aktas:2003sz}.  The muon identification is based on a track
in the forward muon system or the inner tracking systems associated
with a track segment or an energy deposit in the instrumented
iron~\cite{Andreev:2003pm}. The momentum of the muons detected in the forward muon detector is measured from the curvature in a toroidal magnetic field. The muon momentum is measured in the central region from the track curvature in the solenoidal magnetic field. 
A muon candidate should have no more than 5~GeV deposited in the LAr calorimeter in a
cylinder of radius 25 cm and 50 cm in the electromagnetic and hadronic
sections of the LAr calorimeter, respectively, centred on the muon track direction.
In di-muon events, the requirement of an opening angle between the two
muons smaller than $160^\circ$ discards cosmic rays background. Beam halo events are rejected by requiring that the muons
originate from the event vertex.  Finally, misidentified hadrons are
strongly suppressed by requiring that the muon candidate is separated
from the closest jet and from any good quality track by 1 unit in the
$\eta-\phi$ plane.  Muon canditates are also required to be isolated
from other leptons by at least 0.5 units in the $\eta-\phi$ plane.



The final multi-lepton selection requires that there be at least two
central ($20^\circ < \theta < 150^\circ$) lepton (electron or muon)
candidates, of which one must have $P_T^l > 10$ GeV and the other
$P_T^{l} > 5$ GeV. Additional lepton candidates are identified in the
detector according to the above criteria without any additional
explicit $P_T$ or angular requirements. The lepton candidates are
ordered according to decreasing $P_T$, $P_T^{l_i} > P_T^{l_{i+1}}$.
The selected events are classified as belonging to the two lepton sample if only two
central leptons are identified, and to the  three lepton sample if exactly one
additional lepton candidate is identified. According to the flavours of the
identified leptons, these samples are further classified into ee,
$\mu\mu$, e$\mu$, eee and e$\mu\mu$.


%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%\subsection{Systematic Uncertainties}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%
%%%
%%%The electromagnetic energy scale uncertainty varies between 0.7 \% and
%%%3 \% depending on the particle's impact on the LAr calorimeter
%%%surface~\cite{Adloff:2003uh} for HERA I data.  For new HERA II data
%%%this uncertainty is determined to be 1.5 \% and 3 \% in the central
%%%($z\,<\,100$~cm) and forward regions ($z\,>\,100$~cm), respectively.
%%%The angular uncertainty of electromagnetic clusters are 3 and 5 mrad
%%%in HERA I and HERA II data, respectively.  The identification of
%%%central electrons depends on the tracking efficiency which is known
%%%with a precision ranging from 3 \% for polar angles around 90$^\circ$
%%%to 15 \% at the forward edge of the angular acceptance of the central
%%%tracker ($\theta =$ 20 $^\circ$) \cite{Aktas:2003jg}.  The uncertainty
%%%on the transverse momentum measurement for muons is 5~\%. The
%%%uncertainty on the muon polar angle is $3$~mrad.  The muon
%%%identification efficiency is known with a precision of 5\%.  The
%%%hadronic energy scale of the LAr calorimeter is known to 2 \%.  The
%%%uncertainty on the trigger efficiency is estimated to be 5 \%. It is
%%%10 \% for di-muon only events in HERA II data.  The uncertainty in the
%%%integrated luminosity results in an overall normalisation error of
%%%1.5~\% for HERA I data and 3 \% for HERA II data.  The theoretical
%%%uncertainty on the pair production process cross section, calculated
%%%with GRAPE, is 3~\% \cite{Aktas:2003jg}. The uncertainty on the
%%%Compton and DIS background contributions is 20~\%.
%%%

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\subsection{Results}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%


The event yields observed in all channels are summarised in table
\ref{tab:mlepyields}. The observed event yields are in good agreement
with SM expectations, which are dominated by pair production. 
%One
%e$\mu$ data event with an additional radiated low $P_T$ photon enters
%in the ee$\mu$ class for 0.92 $\pm$ 0.56 expected. 
In addition to the events in the classes listed, one event is classified as $ee\mu$. Upon closer inspection, this event is consistent with an $e\mu$ topology with an additional radiated low $P_T$ photon. 0.92 $\pm$ 0.56 such events are expected.
One event is
identified as a four lepton event, compared to a SM expectation of
0.56 $\pm$ 0.14, which is domintated by three lepton events containing
a radiated photon. The data event is consistent with this explanation. Such
events enter the sample because no tracks are required to be
associated with the electron cluster at the  most backward angles ($\theta
>$ 150$^\circ$). No event with three muons is observed.

The distributions of the invariant mass of the two leptons in the
di-lepton event classes are presented in figure \ref{fig:M2lep}. The
agreement with the SM prediction is good, except in the ee invariant
mass distribution for $M_{12}$~$>$~100~GeV, where the three events
already described in \cite{Aktas:2003jg} are present, compared to an
expectation of 0.44 $\pm$ 0.10 (see table \ref{tab:mlepyieldsM100}).
The distribution of the invariant mass $M_{12}$ of the two highest
$P_T$ electrons for the eee sample is shown in figure \ref{figM3lep},
as well as the invariant mass combinations of the electron with the higest
$P_T$ muon ($M_{e\mu}$) and of both muons ($M_{\mu\mu}$) in the
e$\mu\mu$ sample.  The event yields in the tails of invariant mass
distributions ($M >$ 100 GeV) of all channels are summarised in table
\ref{tab:mlepyieldsM100}.  The three "ee" events with $M_{12} >$ 100 GeV
are observed in HERA I data and are discussed in \cite{Aktas:2003jg},
as well as the three "eee" with $M_{12} >$ 100 GeV. Two 
e$\mu\mu$ events are observed in the new HERA II data, of which one has a high muon-muon  
and the other a high electron-muon invariant mass. The e$\mu\mu$ event
with the high $M_{e\mu}$ invariant mass is shown in figure
\ref{fig:emumu_evtdisp}.


The distributions of the scalar sum of $P_T$ of all identified leptons
for the di and tri--lepton samples and the combination of both is shown in
figure \ref{fig:SumEt_All_lep}. For $\sum P_T >$ 100 GeV 4 events are
observed in all channels combined while 0.61 $\pm$ 0.11 are expected. These four data events
correspond to the three ee events observed in HERA I data
\cite{Aktas:2003jg} and one new e$\mu\mu$ event observed in HERA II
data.


%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\subsection{Results for 2005 data}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

The multi-lepton analysis has been carried out on recent $e^{-}p$ data.
The event yields observed in all channels for this data sample are summarised in table \ref{tab:mlepyields_2005}. A good agreement with the SM expectation is observed. 
The distribution of the invariant mass of the two higest $P_T$ electrons for events classified as ee and eee is presented in figure \ref{fig:DIS2005}. The distribution of the scalar sum of  $P_T$ of all identified leptons for  the combination of di and tri--lepton samples is also shown. No new events with high $P_T$ leptons or at high invariant mass are observed.



%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\subsection{Summary}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%


The production of multi-leptons (electrons and muons) at high transverse momenta in $ep$ scattering has been studied.
The measurement extends previous analyses
\cite{Aktas:2003jg,Aktas:2003sz} by including the new HERA II data corresponding
to a luminosity of 45 pb$^-1$.  The event yields in the di-lepton (ee,
$\mu\mu$ and e$\mu$) and tri-lepton (eee and e$\mu\mu$) sub-samples
are in good agreement with the SM predictions. The distribution of the
scalar sum of transverse momenta of the leptons is studied for the
combination of all di- and tri-lepton sub-samples. For $\sum P_T >$
100 GeV 4 events are observed and 0.61 $\pm$ 0.11 are expected.
Recent $e^{-}p$ data have also been studied and no new event at high mass or high $\sum P_T$ has been observed.


%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\section{General Search Analysis}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\subsection{Introduction}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

The general search for new physics involving high $P_T$ particle production consists of a comprehensive
and generic search for deviations from the SM prediction using all high $P_T$ final state configurations
involving electrons ($e$), muons ($\mu$), jets ($j$), photons
($\gamma$) or neutrinos ($\nu$). The
analysis covers phase space regions where the SM prediction is
sufficiently precise to detect anomalies and does not rely on
assumptions concerning the characteristics of any SM extension. Such a
model-independent approach may discover unexpected manifestations of
new physics.

Results obtained with HERA~I data (${\cal L} =$ 115
pb$^{-1}$) have previously been published~\cite{prelimgen}. The results from the HERA~II data 
sample collected in 2003-2004 (${\cal L} =$ 45
pb$^{-1}$) are presented here.

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\subsection{Analysis of HERA~II Data}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

As in the HERA~I analysis, all final states containing at least two
objects ($e$, $\mu$, $j$, $\gamma$, $\nu$) with $P_T >$~$20$~GeV in
the polar angle range $10^\circ < \theta < 140^\circ$ are
investigated. All selected events are classified into exclusive event
classes according to the number and types of objects detected in the
final state, for example $ej$, $\mu j \nu$, $jjjj$.

Figure~\ref{fig:Nb_tot_gen} shows the yields obtained in the various
event classes. Good agreement with the SM expectation is observed in
all event classes, indicating the good understanding of the SM predictions for HERA and of the H1 detector in the HERA II configuration. The majority of the events observed in the dedicated
multi--lepton and isolated lepton analyses are also selected in this
general analysis.

% The general search at high $P_T$ gives a global view of the physics
% rates as a function of the final state topology. The future increase
% in luminosity at HERA will benefit all searches for new phenomena at
% high transverse momentum.



\newpage

\begin{table}[]
\begin{center}
\begin{tabular}{|c|c|c|c|c|}
\multicolumn{5}{c}{H1 Preliminary 163 pb$^{-1}$ (1994-2004)}\\
\hline
Selection & Data & SM & Pair Production (GRAPE) & NC-DIS + Compton \\
\hline                                        
ee & 147 & 149.8 $\pm$ 24.8 & 125.5 $\pm$ 13.0  & 24.3 $\pm$ 18.7 \\ 
$\mu\mu$ & 66   & 63.7 $\pm$ 12.7 & 63.7 $\pm$ 12.3 &  --- \\ 
e$\mu$ & 86   & 78.4 $\pm$ 12.0 & 46.4 $\pm$ 3.8 & 31.9 $\pm$ 9.9 \\ 
\hline
eee & 24 & 30.4 $\pm$ 3.9 & 30.41 $\pm$ 3.9 &  0.04 $\pm$ 0.06  \\    
e$\mu\mu$ & 41 & 39.5 $\pm$ 6.5  & 39.5 $\pm$ 6.5  &  ---   \\    
\hline
\end{tabular}
\end{center}
\caption{Observed and predicted event yields for the ee, $\mu\mu$, e$\mu$, eee and e$\mu\mu$ event classes.
  The analysed data sample corresponds to an integrated luminosity of 163 pb$^{-1}$  of HERA I and II data.
  The errors on the prediction include model uncertainties and experimental systematic errors added in quadrature.}
\label{tab:mlepyields}
\end{table}


\begin{table}[]
\begin{center}
\begin{tabular}{|c|c|c|c|c|}
\multicolumn{5}{c}{H1 Preliminary 163 pb$^{-1}$ (1994-2004)}\\
\hline
Selection & Data & SM & Pair Production (GRAPE) & NC-DIS + Compton \\
\hline                                        
ee $M_{12}>$100 GeV & 3 & 0.44 $\pm$ 0.10 & 0.32 $\pm$ 0.10  & 0.12 $\pm$ 0.03 \\ 
$\mu\mu$ $M_{\mu\mu}>$100 GeV & 0  & 0.04 $\pm$ 0.02 & 0.04 $\pm$ 0.02 &  --- \\ 
e$\mu$ $M_{e\mu}>$100 GeV & 0   & 0.31 $\pm$ 0.03 & 0.31 $\pm$ 0.03 & --- \\ 
\hline
eee $M_{12}>$100 GeV  & 3 & 0.31 $\pm$ 0.08 & 0.31 $\pm$ 0.08 &  ---   \\    
e$\mu\mu$ $M_{e\mu}>$100 GeV  & 1 & 0.04 $\pm$ 0.01 & 0.04 $\pm$ 0.01 &  ---   \\
e$\mu\mu$ $M_{\mu\mu}>$100 GeV  & 1 & 0.02 $\pm$ 0.01  & 0.02 $\pm$ 0.01 &  ---   \\    
\hline
\end{tabular}
\end{center}
\caption{Yields for high di-lepton masses, $M >$ 100 GeV in all analysed samples. For the eee sample, the mass of the two highest $P_T$ electrons is shown.
  The analysed data sample corresponds to an integrated luminosity of 163 pb$^{-1}$  of HERA I and II data.
  The errors on the prediction include model uncertainties and experimental systematic errors added in quadrature.}
\label{tab:mlepyieldsM100}
\end{table}



\begin{figure}[htbp] 
  \begin{center}
    \includegraphics[width=16cm]{H1prelim-05-061.fig1.eps}
  \end{center}
  \caption{Distibution of the invariant mass $M$ of the two leptons compared to
    expectations for events classified as ee, $\mu\mu$ and e$\mu$.
    The analysed data sample corresponds to an integrated luminosity
    of 163 pb$^{-1}$ of HERA I and II data.}
\label{fig:M2lep}  
\end{figure} 

\begin{figure}[htbp] 
  \begin{center}
  \includegraphics[width=16cm]{H1prelim-05-061.fig2.eps}
  \end{center}
  \caption{Distribution of the invariant mass $M_{12}$ of the two highest $P_T$ electrons for the eee sample (top left).
    For the e$\mu\mu$ sample, invariant mass combinations of the
    electron with the higest $P_T$ muon ($M_{e\mu}$, bottom left) and of both muons
    ($M_{\mu\mu}$, top right) are presented. The analysed data sample corresponds
    to an integrated luminosity of 163 pb$^{-1}$ of HERA I and II
    data.}
\label{figM3lep}  
\end{figure} 


\begin{figure}[htbp] 
  \begin{center}
  \includegraphics[width=20cm,angle=90]{H1prelim-05-061.fig3.eps}
  \end{center}
  \caption{Display of the e$\mu\mu$ event with a scalar sum of transverse momenta of the leptons $\sum P_T >$ 100 GeV, observed in the new HERA II data.}
\label{fig:emumu_evtdisp}
\end{figure} 


\begin{figure}[htbp] 
  \begin{center}
  \includegraphics[width=16cm]{H1prelim-05-061.fig4.eps}
  \end{center}
  \caption{Distributions of the scalar sum of the transverse momenta of leptons compared to expectations in all two-lepton and three-lepton event classes
    and for the combination of both samples. The analysed data sample
    corresponds to an integrated luminosity of 163 pb$^{-1}$ of HERA I
    and II data.}
\label{fig:SumEt_All_lep}
\end{figure}

\clearpage


\begin{table}[]
\begin{center}
\begin{tabular}{|c|c|c|c|c|}
\multicolumn{5}{c}{H1 Preliminary $e^{-}p$  ~2005~ (21 pb$^{-1}$)}\\
\hline
Selection & Data & SM & Pair Production (GRAPE) & NC-DIS + Compton \\
\hline
ee & 21 & 21.1 $\pm$ 2.9 & 17.2 $\pm$ 1.9 & 3.9 $\pm$ 1.9 \\ 
e$\mu$ &  8  & 10.8 $\pm$ 2.5 & 6.6 $\pm$ 0.6 & 4.2 $\pm$ 2.2 \\ 
\hline
eee & 1 & 4.2 $\pm$ 0.7 & 4.2 $\pm$ 0.7 &  ---   \\    
e$\mu\mu$ & 6 & 5.4 $\pm$ 0.9 &  5.4 $\pm$ 0.9 &  ---   \\    
\hline
\end{tabular}
\end{center}
\caption{Observed and predicted event yields for the ee, e$\mu$, eee and e$\mu\mu$ event classes.
  The analysed data sample corresponds to an integrated luminosity of 21 pb$^{-1}$  of $e^{-}p$ data recorded in 2005.
  The errors on the prediction include model uncertainties and experimental systematic errors added in quadrature.}
\label{tab:mlepyields_2005}
\end{table}


\begin{figure}[htbp] 
  \begin{center}
  \includegraphics[width=16cm]{H1prelim-05-061.fig5.eps}
  \end{center}
  \caption{Distributions of the scalar sum of the transverse momenta of leptons compared to expectations in all two-lepton and three-lepton event classes
    and for the combination of both samples. The analysed data sample corresponds to an integrated luminosity of 21 pb$^{-1}$  of $e^{-}p$ data recorded in 2005.}
\label{fig:DIS2005}
\end{figure}



\begin{figure}[htbp]
  \begin{center}
  \includegraphics[width=19cm,angle=-90]{H1prelim-05-061.fig6.eps}
  \end{center}
  \caption{Results of the H1 general search using the new HERA II data (2003-2004). The analysed data sample corresponds to an integrated luminosity of 45 pb$^{-1}$.
    The errors on the prediction include model uncertainties and experimental errors added in quadrature.
% The event classes with more than 3 jets are placed in a grey area since their SM prediction suffers from larger theoretical uncertainties.
}
\label{fig:Nb_tot_gen}
\end{figure}


\clearpage




%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{thebibliography}{99}

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%%CITATION = HEP-EX 0307015;%%


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%%CITATION = HEP-EX 0311015;%%

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\bibitem{Berger:kp}
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%%CITATION = HEP-EX 0301030;%%


%\cite{Adloff:2003uh}
%\bibitem{Adloff:2003uh}
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\bibitem{prelimgen}
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DESY 04-140, submitted to Phys.Lett. [h1p-ex 0408044]
%http://www-h1.desy.de/h1/www/publications/htmlsplit/H1prelim-03-063.long.html


\end{thebibliography}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%



\end{document}

