Extraction of dihadron-jet correlations with rigorous flow-background subtraction in a multiphase transport model
Abstract
Dihadron azimuthal correlations in Au+Au collisions at SNN=200 GeV are explored by using a multiphase transport model. To obtain the contributions from jet-medium interactions, the combined harmonic flow background is subtracted from the raw dihadron correlation functions. The signals are compared in three associated transverse momentum (pTassoc) bins: 0.2-0.8, 0.8-1.4, and 1.4-2.0 GeV/c from central to semiperipheral geometries. The medium modifications are observed from changes in the signal shape and the relative jet contribution is obtained within the change in the centrality from the peripheral to the central one. A strong pTassoc dependence of the rms width of the jet-correlation function is observed within the central geometry bin, i.e., 0-10%.
- Publication:
-
Physical Review C
- Pub Date:
- February 2013
- DOI:
- 10.1103/PhysRevC.87.024904
- arXiv:
- arXiv:1309.6744
- Bibcode:
- 2013PhRvC..87b4904Z
- Keywords:
-
- 25.75.Gz;
- 12.38.Mh;
- 24.85.+p;
- Particle correlations;
- Quark-gluon plasma;
- Quarks gluons and QCD in nuclei and nuclear processes;
- Nuclear Theory;
- Nuclear Experiment
- E-Print:
- 9 pages, 5 figures, 8 tables. arXiv admin note: substantial text overlap with arXiv:1212.0192