TY  - JOUR
A1  - Aad, G.
A1  - Abbott, B.
A1  - Abdallah, J.
A1  - Abdelalim, A. A.
A1  - Abdesselam, A.
T1  - Forward-backward correlations and charged-particle azimuthal distributions in pp interactions using the ATLAS detector
JF  - Journal of High Energy Physics
N2  - Using inelastic proton-proton interactions at s√=900 GeV and 7 TeV, recorded by the ATLAS detector at the LHC, measurements have been made of the correlations between forward and backward charged-particle multiplicities and, for the first time, between forward and backward charged-particle summed transverse momentum. In addition, jet-like structure in the events is studied by means of azimuthal distributions of charged particles relative to the charged particle with highest transverse momentum in a selected kinematic region of the event. The results are compared with predictions from tunes of the pythia and herwig++ Monte Carlo generators, which in most cases are found to provide a reasonable description of the data.
KW  - Hadron-Hadron Scattering
Y1  - 2012
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-127336
VL  - 7
IS  - 19
ER  - 
TY  - JOUR
A1  - Aad, G.
A1  - Abbott, B.
A1  - Abdallah, J.
A1  - Abdelalim, A. A.
A1  - Abdesselam, A.
T1  - Performance of the ATLAS Trigger System in 2010
JF  - The European Physical Journal C
N2  - Proton–proton collisions at √s=7 TeV and heavy ion collisions at \(\sqrt{sNN}\)=2.76 TeV were produced by the LHC and recorded using the ATLAS experiment’s trigger system in 2010. The LHC is designed with a maximum bunch crossing rate of 40 MHz and the ATLAS trigger system is designed to record approximately 200 of these per second. The trigger system selects events by rapidly identifying signatures of muon, electron, photon, tau lepton, jet, and B meson candidates, as well as using global event signatures, such as missing transverse energy. An overview of the ATLAS trigger system, the evolution of the system during 2010 and the performance of the trigger system components and selections based on the 2010 collision data are shown. A brief outline of plans for the trigger system in 2011 is presented.
KW  - ATLAS
KW  - Trigger System
Y1  - 2012
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-127321
VL  - 72
IS  - 1849
ER  -