Multiplicity dependence of two-particle azimuthal correlations in pp collisions at the LHC - INSPIRE

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Multiplicity dependence of two-particle azimuthal correlations in pp collisions at the LHC

ALICE

Collaboration

Jul 4, 2013

42 pages

Published in:

JHEP 09 (2013) 049

Published: 2013

e-Print:

1307.1249 [nucl-ex]

DOI:

10.1007/JHEP09(2013)049

Report number:

CERN-PH-EP-2013-107

Experiments:

CERN-LHC-ALICE

View in:

reference search49 citations

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Abstract: (arXiv)

We present the measurements of particle pair yields per trigger particle obtained from di-hadron azimuthal correlations in pp collisions at

\sqrt{s} = 0.9

,

2.76

, and

7

TeV recorded with the ALICE detector. The yields are studied as a function of the charged particle multiplicity. Taken together with the single particle yields the pair yields provide information about parton fragmentation at low transverse momenta, as well as on the contribution of multiple parton interactions to particle production. Data are compared to calculations using the PYTHIA6, PYTHIA8, and PHOJET event generators.

Note:

36 pages, 18 captioned figures, 4 tables, authors from page 31, published version, figures at http://aliceinfo.cern.ch/ArtSubmission/node/852

Hadron-Hadron Scattering
p p: scattering
hadron: yield
dihadron: yield
dihadron: angular correlation
angular correlation: two-particle
charged particle: multiplicity
multiplicity: dependence
transverse momentum: low
parton: fragmentation

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