Heavy quark diffusion from the lattice

Journal Article · Sun Jan 01 00:00:00 EST 2006 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PhysRevD.73.014508· OSTI ID:20774620

Petreczky, Peter; Teaney, Derek ^[1]

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1. Nuclear Theory Group, Department of Physics, Brookhaven National Laboratory, Upton, New York 11973 (United States)

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.

• OSTI ID: 20774620
• Journal Information: Physical Review. D, Particles Fields, Vol. 73, Issue 1; Other Information: DOI: 10.1103/PhysRevD.73.014508; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

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