Measurement of inclusive two-particle angular correlations in pp collisions with the ATLAS detector at the LHC
Journal
JHEP
Journal Volume
05
Pages
157
Date Issued
2012
Author(s)
Aad, Georges et al. (The ATLAS Collaboration)
Abstract
Abstract We present a measurement of two-particle angular correlations in proton- proton collisions at $ \sqrt {s} = 900 $ GeV and 7 TeV. 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 p T ?>?100?MeV and pseudorapidity |�b|?<?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.
SDGs
Type
journal article