Anomalous QCD contribution to the Debye screening in an external field via holography

Journal Article · Tue Mar 15 00:00:00 EDT 2011 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.83.066012· OSTI ID:21537604

Gorsky, A; Kopnin, P N; Krikun, A ^[1]

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1. Institute for Theoretical and Experimental Physics (ITEP), Moscow (Russian Federation)

In this paper we discuss the QCD contribution to the Abelian Debye and magnetic screening masses in a deconfined QCD plasma at finite temperature in the presence of an external magnetic field B. We use a holographic AdS/QCD setup in an AdS Schwarzschild black hole background and show that the electric screening mass has a form similar to the one-loop result in QED. Moreover, we calculate the corrections due to the magnetic field to all orders of B and demonstrate that in the case when the magnetic field is large the Debye mass grows linearly with B, while the magnetic screening mass vanishes. The whole effect of the magnetic field turns out to stem from the Chern-Simons action. We also discuss the zero temperature case in the chiral perturbation theory.

• OSTI ID: 21537604
• Journal Information: Physical Review. D, Particles Fields, Vol. 83, Issue 6; Other Information: DOI: 10.1103/PhysRevD.83.066012; (c) 2011 American Institute of Physics; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANTI DE SITTER SPACE
BLACK HOLES
CHIRALITY
COMPUTERIZED SIMULATION
CORRECTIONS
FIELD THEORIES
MAGNETIC FIELDS
MASS
PERTURBATION THEORY
QUANTUM CHROMODYNAMICS
QUANTUM ELECTRODYNAMICS
QUANTUM FIELD THEORY
SCHWARZSCHILD METRIC
ELECTRODYNAMICS
MATHEMATICAL SPACE
METRICS
PARTICLE PROPERTIES
SIMULATION
SPACE