Number-of-constituent-quark scaling of elliptic flow: a quantitative study

Abstract

The number-of-constituent-quark (NCQ) scaling behavior of the elliptic flow of identified particles produced in A+A collisions is studied quantitatively using an empirical function that fits the experimental $v_2$ data available from the RHIC and LHC. The most common approach for NCQ scaling involves (1) doing a scaling of the experimental $v_2$ data of an identified particle with its NCQ, (2) doing the same to its transverse momentum or energy, then (3) combining all the scaled data and identifying the NCQ behavior by intuitively looking (since the measured experimental data are discrete). We define two variables $(d_1,d_2)$ to describe NCQ scaling quantitatively and simultaneously, and identify the approximate region where the NCQ scaling holds. This approach could be applied to study NCQ or other scaling phenomena in future experiments.

arXiv comment7 pages, 4 figures

References in corpus (35)

• New Forms of QCD Matter Discovered at RHIC
• Flow Study in Relativistic Nuclear Collisions by Fourier Expansion of Azimuthal Particle Distributions
• Parton coalescence and antiproton/pion anomaly at RHIC
• Azimuthal anisotropy in Au+Au collisions at sqrtsNN = 200 GeV
• Hadron production in heavy ion collisions: Fragmentation and recombination from a dense parton phase
• Elliptic flow at large transverse momenta from quark coalescence
• Particle-type dependence of azimuthal anisotropy and nuclear modification of particle production in Au+Au collisions at s(NN)**(1/2) = 200-GeV
• Parton coalescence at RHIC
• Elliptic flow from two- and four-particle correlations in Au + Au collisions at sqrt{s_{NN}} = 130 GeV
• Scaling behavior at high p_T and the p/pi ratio
• Centrality dependence of charged hadron and strange hadron elliptic flow from sqrt(s_NN) = 200 GeV Au+Au collisions
• Coalescence Models For Hadron Formation From Quark Gluon Plasma
• Elliptic Flow: Transition from out-of-plane to in-plane Emission in Au + Au Collisions
• Anisotropic flow of charged hadrons, pions and (anti-)protons measured at high transverse momentum in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=2.76$ TeV
• Anisotropic flow of charged particles in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV
• Elliptic flow of identified hadrons in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV
• Inclusive charged hadron elliptic flow in Au + Au collisions at $\sqrt{s_{NN}}$ = 7.7 - 39 GeV
• Excitation function of elliptic flow in Au+Au collisions and the nuclear matter equation of state
• Antinuclei in Heavy-Ion Collisions
• Anisotropic flow in Xe-Xe collisions at $\sqrt{{\mathbf{s}}_{\mathrm{NN}}}=5.44$ TeV
• Further developments of a multi-phase transport model for relativistic nuclear collisions
• Quark Coalescence based on a Transport Equation
• Resonance decay effects on anisotropy parameters
• Inclusive Distributions for Hadronic Collisions in the Valon-Recombination Model
• Flavor ordering of elliptic flows at high transverse momentum
• Anisotropic flow of identified particles in Pb-Pb collisions at $\sqrt{{\text{s}}_{\mathrm{NN}}}=5.02$ TeV
• Centrality dependence of identified particle elliptic flow in relativistic heavy ion collisions at sqrt(s)= 7.7--62.4 GeV
• Centrality and transverse momentum dependence of elliptic flow of multi-strange hadrons and $\varphi$ meson in Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV
• Probing the partonic degrees of freedom in high multiplicity p-Pb collisions at $\sqrt{s_{NN}}=$ 5.02 TeV
• Effect of resonance decays on hadron elliptic flows
• An experimental review of open heavy flavor and quarkonium production at RHIC
• Production of strange particles at intermediate pT at RHIC
• Charm and beauty isolation from heavy flavor decay electrons in Au+Au collisions at $\sqrt{s_{\mathrm{NN}}}$ = 200 GeV at RHIC
• Spectra of Identified Hadrons in Pb-Pb Collisions at LHC
• Centrality and Transverse Momentum Dependencies of Minijets and Hadrons in Au-Au Collisions

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