%
% Simple template for an abstract of a contributed paper, 
% PANIC99, Uppsala, Sweden, June 10-16, 1999
%
\documentstyle[epsfig,graphicx,12pt]{article}
%
\setlength{\textwidth}{160mm}\setlength{\textheight}{240mm}
\setlength{\oddsidemargin}{0mm}\setlength{\evensidemargin}{0mm}
\setlength{\topmargin}{0mm}
\setlength{\parindent}{0mm} 
\pagestyle{empty}       %no page number!
%
\begin{document}
%
{\large\bf\boldmath Test of the Standard Model in high $E_T$ jet production at HERA
}\\     [4mm]
%
{H1 Collaboration}\\                            
%
{\small \em DESY, Hamburg, Germany}\\[6mm]
%
Following the observation$^1$ by H1 of unexpected events with jets, 
high $P_T$ leptons and missing transverse momentum, we explore final states 
with similar kinematic configurations but only high $E_T$ in the final state.
The data sample comprises all available $e^+p$ data as well as, for the first
time, also $e^-p$ data collected in 1998 and 1999.
The measured event rate is compared with QCD and electroweak production 
mechanisms for multijet events, and constraints on novel production 
mechanisms are derived.

\vspace*{0.5cm}
{\bf References }\\
1. H1 Collaboration, C.~Adloff {\it et al}, 
DESY-98-063 / Eur. Phys. J. C 5 (1998) 4, 575-584.\\

\end{document}