Transverse momentum diffusion and jet energy loss in non-Abelian plasmas

Abstract

We consider momentum broadening and energy loss of high momentum partons in a hot non-Abelian plasma due to collisions. We solve the coupled system of Wong-Yang-Mills equations on a lattice in real time, including binary hard elastic collisions among the partons. The collision kernel is constructed such that the total collisional energy loss and momentum broadening are lattice spacing independent. We find that the transport coefficient $\hat{q}$ corresponding to transverse momentum broadening receives sizable contributions from a power-law tail in the $p_{\perp }$-distribution of high-momentum partons. We establish the scaling of $\hat{q}$ and of $dE/dx$ with density, temperature and energy in the weak-coupling regime. We also estimate the nuclear modification factor $R_{AA}$ due to elastic energy loss of a jet in a classical Yang-Mills field.

25 pages, 13 figures, version accepted for publication in PRC, added discussion of R_AA due to elastic energy loss of a jet in a classical Yang-Mills field, updated references

References in corpus (11)

• Glasma flux tubes and the near side ridge phenomenon at RHIC
• Radiative and Collisional Jet Energy Loss in the Quark-Gluon Plasma at RHIC
• Dihadron Tomography of High-Energy Nuclear Collisions in NLO pQCD
• On the equivalence between the Boltzmann equation and classical field theory at large occupation numbers
• Transport rates and momentum isotropization of gluon matter in ultrarelativistic heavy-ion collisions
• Ultraviolet avalanche in anisotropic non-Abelian plasmas
• Higher twist jet broadening and classical propagation
• Jet broadening in unstable non-Abelian plasmas
• A comparative study of Jet-quenching Schemes
• Deciphering the properties of the medium produced in heavy ion collisions at RHIC by a pQCD analysis of quenched large $p_{\perp }$ ${\pi }^0$ spectra
• QGP collective effects and jet transport

Cited by in corpus (19)

• Spectral densities for hot QCD plasmas in a leading log approximation
• Simulating jets and heavy quarks in the Glasma using the colored particle-in-cell method
• Spectral function for overoccupied gluodynamics from real-time lattice simulations
• Jet momentum broadening in the pre-equilibrium Glasma
• Anisotropic momentum broadening in the 2+1D Glasma: analytic weak field approximation and lattice simulations
• QGP modification to single inclusive jets in a calibrated transport model
• Transport of hard probes through glasma
• The evolving distribution of hard partons traversing a hot strongly interacting plasma
• The momentum broadening of energetic partons in an anisotropic plasma
• Simulating collisions of thick nuclei in the color glass condensate framework
• Heavy Quark Thermalization in Classical Lattice Gauge Theory: Lessons for Strongly-Coupled QCD
• Momentum Broadening of a Fast Parton in a Perturbative Quark-Gluon Plasma
• Searching for QGP droplets with high-$p_T$ hadrons and heavy flavor
• Progress on 3+1D Glasma simulations
• The impact of glasma on heavy flavor azimuthal correlations and spectra
• Parton energy loss in a classical strongly coupled QGP
• Transport Theoretical Description of Collisional Energy Loss in Infinite Quark-Gluon Matter
• Jet evolution in Yang-Mills-Wong simulations
• Energy loss of heavy-flavor quarks in color string medium