Jet-like correlations with neutral pion triggers in pp and central Pb–Pb collisions at 2.76 TeV
Abstract
We present measurements of two-particle correlations with neutral pion trigger particles of transverse momenta 8 3GeV/c, while with decreasing momenta an enhancement develops reaching about 5at low passocT. On the near side, an enhancement of IAAbetween 1.2at the highest to 1.8at the lowest passocTis observed. The data are compared to parton-energy-loss predictions of the JEWEL and AMPT event generators, as well as to a perturbative QCD calculation with medium-modified fragmentation functions. All calculations qualitatively describe the away-side suppression at high passocT. Only AMPT captures the enhancement at low passocT, both on the near and away side. However, it also underpredicts IAAabove 5GeV/c, in particular on the near-side.
Main Author
Format
Articles
Research article
Published
2016
Series
Subjects
Publication in research information system
Publisher
Elsevier B.V.
The permanent address of the publication
https://urn.fi/URN:NBN:fi:jyu-201611244755Use this for linking
Review status
Peer reviewed
ISSN
0370-2693
DOI
https://doi.org/10.1016/j.physletb.2016.10.048
Language
English
Published in
Physics Letters B
Citation
- ALICE Collaboration. (2016). Jet-like correlations with neutral pion triggers in pp and central Pb–Pb collisions at 2.76 TeV. Physics Letters B, 763, 238-250. https://doi.org/10.1016/j.physletb.2016.10.048
License
Copyright©2016 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license. Funded by SCOAP3.