Measurement of inclusive two-particle angular correlations in pp collisions with the ATLAS detector at the LHC
Author(s)
ATLAS Collaboration; Taylor, Frank E
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We present a measurement of two-particle angular correlations in protonproton collisions at √a = 900 GeV and 7TeV. The collision events were collected during 2009 and 2010 with the ATLAS detector at the Large Hadron Collider using a single-arm minimum bias trigger. Correlations are measured for charged particles produced in the kinematic range of transverse momentum pT > 100MeV and pseudorapidity |n| < 2.5. A complex structure in pseudorapidity and azimuth is observed at both collision energies. Results are compared to pythia 8 and herwig++ as well as to the AMBT2B, DW and Perugia 2011 tunes of pythia 6. The data are not satisfactorily described by any of these models.
Date issued
2012-04Department
Massachusetts Institute of Technology. Department of PhysicsJournal
Journal of High Energy Physics
Publisher
Springer Berlin Heidelberg
Citation
Aad, G. et al. “Measurement of Inclusive Two-Particle Angular Correlations in Pp Collisions with the ATLAS Detector at the LHC.” Journal of High Energy Physics 2012, 5 (May 2012) © 2012 SISSA
Version: Final published version
ISSN
1029-8479