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Title: Heavy quark diffusion from the lattice

Abstract

We study the diffusion of heavy quarks in the quark gluon plasma using the Langevin equations of motion and estimate the contribution of the transport peak to the Euclidean current-current correlator. We show that the Euclidean correlator is remarkably insensitive to the heavy quark diffusion coefficient and give a physical interpretation of this result using the free streaming Boltzmann equation. However if the diffusion coefficient is smaller than {approx}1/({pi}T), as favored by RHIC phenomenology, the transport contribution should be visible in the Euclidean correlator. We outline a procedure to isolate this contribution.

Authors:
;  [1];  [2]
  1. Nuclear Theory Group, Department of Physics, Brookhaven National Laboratory, Upton, New York 11973 (United States)
  2. (United States)
Publication Date:
OSTI Identifier:
20774620
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. D, Particles Fields; Journal Volume: 73; Journal Issue: 1; Other Information: DOI: 10.1103/PhysRevD.73.014508; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ALGEBRAIC CURRENTS; B QUARKS; BOLTZMANN EQUATION; BROOKHAVEN RHIC; C QUARKS; DIFFUSION; EUCLIDEAN SPACE; HEAVY ION REACTIONS; LANGEVIN EQUATION; LATTICE FIELD THEORY; QUARK MATTER; T QUARKS

Citation Formats

Petreczky, Peter, Teaney, Derek, and Department of Physics and Astronomy, SUNY at Stony Brook, Stony Brook, New York 11764. Heavy quark diffusion from the lattice. United States: N. p., 2006. Web. doi:10.1103/PhysRevD.73.014508.
Petreczky, Peter, Teaney, Derek, & Department of Physics and Astronomy, SUNY at Stony Brook, Stony Brook, New York 11764. Heavy quark diffusion from the lattice. United States. doi:10.1103/PhysRevD.73.014508.
Petreczky, Peter, Teaney, Derek, and Department of Physics and Astronomy, SUNY at Stony Brook, Stony Brook, New York 11764. Sun . "Heavy quark diffusion from the lattice". United States. doi:10.1103/PhysRevD.73.014508.
@article{osti_20774620,
title = {Heavy quark diffusion from the lattice},
author = {Petreczky, Peter and Teaney, Derek and Department of Physics and Astronomy, SUNY at Stony Brook, Stony Brook, New York 11764},
abstractNote = {We study the diffusion of heavy quarks in the quark gluon plasma using the Langevin equations of motion and estimate the contribution of the transport peak to the Euclidean current-current correlator. We show that the Euclidean correlator is remarkably insensitive to the heavy quark diffusion coefficient and give a physical interpretation of this result using the free streaming Boltzmann equation. However if the diffusion coefficient is smaller than {approx}1/({pi}T), as favored by RHIC phenomenology, the transport contribution should be visible in the Euclidean correlator. We outline a procedure to isolate this contribution.},
doi = {10.1103/PhysRevD.73.014508},
journal = {Physical Review. D, Particles Fields},
number = 1,
volume = 73,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 2006},
month = {Sun Jan 01 00:00:00 EST 2006}
}