Azimuthal anisotropy of charged jet production in $\sqrt{{\text{s}}_{\mathrm{NN}}}$ = 2.76 TeV Pb--Pb collisions

Abstract

Measurements of charged jet production with respect to the second-order harmonic event plane, quantified as $v_2^{\mathrm{ch}\mathrm{jet}}$, in $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV Pb--Pb collisions are presented. The contribution of hydrodynamic flow to the underlying event energy is corrected for on a jet-by-jet basis. Remaining effects from instrumental resolution and regional fluctuations in the energy density of the underlying event are corrected for by unfolding. Significant $v_2^{\mathrm{ch}\mathrm{jet}}$ is observed in semi-central collisions. Qualitative agreement is found with $v_2^{\mathrm{ch}+\mathrm{emjet}}$ of jets reconstructed from charged and neutral fragments and $v_2$ of single charged particles, as well as with predictions from the JEWEL Monte Carlo model.

4 pages, 5 figures, to appear in the proceedings of Quark Matter 2015, KOBE, Japan

References in corpus (4)

• A perturbative framework for jet quenching
• Azimuthal anisotropy of charged particles at high transverse momenta in PbPb collisions at sqrt(s[NN]) = 2.76 TeV
• Quantitative Constraints on the Transport Properties of Hot Partonic Matter from Semi-Inclusive Single High Transverse Momentum Pion Suppression in Au+Au collisions at sqrt(s_NN) = 200 GeV
• Measurement of the Azimuthal Angle Dependence of Inclusive Jet Yields in Pb+Pb Collisions at sqrt(s(NN))= 2.76 TeV with the ATLAS detector