Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2010-12-03
Phys. Rev. D 83 (2011) 112001
Physics
High Energy Physics
High Energy Physics - Experiment
36 pages plus author list (65 pages total), 12 figures, 2 tables
Scientific paper
10.1103/PhysRevD.83.112001
Measurements of charged particle distributions, sensitive to the underlying event, have been performed with the ATLAS detector at the LHC. The measurements are based on data collected using a minimum-bias trigger to select proton-proton collisions at center-of-mass energies of 900 GeV and 7 TeV. The "underlying event" is defined as those aspects of a hadronic interaction attributed not to the hard scattering process, but rather to the accompanying interactions of the rest of the proton. Three regions are defined in azimuthal angle with respect to the highest-pt charged particle in the event, such that the region transverse to the dominant momentum-flow is most sensitive to the underlying event. In each of these regions, distributions of the charged particle multiplicity, pt density, and average pt are measured. The data show a higher underlying event activity than that predicted by Monte Carlo models tuned to pre-LHC data.
No associations
LandOfFree
Measurement of underlying event characteristics using charged particles in pp collisions at $\sqrt{s} = 900 GeV$ and 7 TeV with the ATLAS detector does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Measurement of underlying event characteristics using charged particles in pp collisions at $\sqrt{s} = 900 GeV$ and 7 TeV with the ATLAS detector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Measurement of underlying event characteristics using charged particles in pp collisions at $\sqrt{s} = 900 GeV$ and 7 TeV with the ATLAS detector will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-515597