Bonn 2010 – wissenschaftliches Programm
T 29.2: Vortrag
Dienstag, 16. März 2010, 17:00–17:15, HG X
Beam-background studies in the ATLAS detector — •Bernhard Meirose and Florian Ahles — Physikalisches Institut, University of Freiburg
One of the key signatures for new physics, in the ATLAS detector, rely on a good measurement of the missing transverse energy (MET). Therefore any sources of MET generate backgrounds to SUSY. Examples are: beamgas interactions and beam halo muons. We present preliminary results on beam-gas and beam-halo studies using Monte Carlo and single-beam data taken in September 2008 and November 2009. Clean-up cuts are developed using calorimeter and tracking information and a reasonable discrimination against QCD events is obtained.