Measurements of the pseudorapidity dependence of the total transverse energy in proton-proton collisions at √s=7 TeV with ATLAS

This paper describes measurements of the sum of the transverse energy of
particles as a function of particle pseudorapidity, , in proton-proton collisions at a centreof-
mass energy, ps = 7TeV using the ATLAS detector at the Large Hadron Collider. The
measurements are performed in the region jj < 4:8 for two event classes: those requiring
the presence of particles with a low transverse momentum and those requiring particles
with a signicant transverse momentum. In the second dataset measurements are made in
the region transverse to the hard scatter. The distributions are compared to the predictions
of various Monte Carlo event generators, which generally tend to underestimate the amount
of transverse energy at high jj