In:
Journal of High Energy Physics, Springer Science and Business Media LLC, Vol. 2012, No. 5 ( 2012-05)
Kurzfassung:
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 | η | 〈 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.
Materialart:
Online-Ressource
ISSN:
1029-8479
DOI:
10.1007/JHEP05(2012)157
Sprache:
Englisch
Verlag:
Springer Science and Business Media LLC
Publikationsdatum:
2012
ZDB Id:
2027350-2
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