Elliptic and triangular flow in p+Pb and peripheral Pb+Pb collisions from parton scatterings

Abstract

Using a multiphase transport model (AMPT) we calculate the elliptic, $v_2$, and triangular, $v_3$, Fourier coefficients of the two-particle azimuthal correlation function in proton-nucleus (p+Pb) and peripheral nucleus-nucleus (Pb+Pb) collisions. Our results for $v_3$ are in a good agreement with the CMS data collected at the Large Hadron Collider. The $v_2$ coefficient is very well described in p+Pb collisions and is underestimated for higher transverse momenta in Pb+Pb interactions. The characteristic mass ordering of $v_2$ in p+Pb is reproduced whereas for $v_3$ this effect is not observed. We further predict the pseudorapidity dependence of $v_2$ and $v_3$ in p+Pb and observe that both are increasing when going from a proton side to a Pb-nucleus side. Predictions for the higher order Fourier coefficients, $v_4$ and $v_5$, in p+Pb are also presented.

5 pages, 6 figures (final published version)

References in corpus (8)

• The Color Glass Condensate
• Observation of long-range near-side angular correlations in proton-lead collisions at the LHC
• Jets, Mach cone, hot spots, ridges, harmonic flow, dihadron and $\gamma$-hadron correlation in high-energy heavy-ion collisions
• Long-range azimuthal correlations in proton-proton and proton-nucleus collisions from the incoherent scattering of partons
• Forward-backward eccentricity and participant-plane angle fluctuations and their influences on longitudinal dynamics of collective flow
• Transverse momentum structure of pair correlations as a signature of collective behavior in small collision systems
• Statistics of initial density perturbations in heavy ion collisions and their fluid dynamic response
• Anisotropic flow and flow fluctuations for Au + Au at $\sqrt{s_{NN}}$ = 200 GeV in a multiphase transport model

Cited by in corpus (19)

• Phenomenological Review on Quark-Gluon Plasma: Concepts vs. Observations
• Mass ordering of spectra from fragmentation of saturated gluon states in high multiplicity proton-proton collisions
• Longitudinal Decorrelation of Anisotropic Flows in Heavy-ion Collisions at the CERN Large Hadron Collider
• Mid-rapidity charged hadron transverse spherocity in pp collisions simulated with Pythia
• Glauber Monte Carlo predictions for ultra-relativistic collisions with ${}^{16}\mathrm{O}$
• Collective effects in light-heavy ion collisions
• High order cumulants of the azimuthal anisotropy in the dilute-dense limit: Connected graphs
• Investigation of the elliptic flow fluctuations of the identified particles using the A Multi-Phase Transport model
• Triple- and Quadruple-Gluon Azimuthal Correlations from Glasma and Higher-Dimensional Ridges
• Elliptic flow coefficients from transverse momentum conservation
• Particle productions and anisotropic flows from the AMPT model for Cu+Au collisions at $\sqrt{s_{NN}}=200$ GeV
• Plane correlations in small colliding systems
• Collective flow and hydrodynamics in large and small systems at the LHC
• Collective flow in small systems
• The physics mechanisms of light and heavy flavor $v_2$ and mass ordering in AMPT
• Mapping the internal structure of hadrons through color and spin effects
• Cumulant Expansion in Gluon Saturation, and Five and Six-Gluon Azimuthal Correlations
• Two Gluon Emission from MHV: Two Particle Correlations and the Deviation from Poisson
• Examining the event-shape dependent modifications to charged-particle transverse momentum spectra and elliptic flow in p-Pb collisions at energies available at the CERN Large Hadron Collider