Screening mass from chiral perturbation theory, virial expansion, and the lattice

Journal Article · Mon Nov 01 04:00:00 EST 1993 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.48.4398· OSTI ID:5918645

Eletsky, V L ^[1]; Kapusta, J I ^[2]; Venugopalan, R ^[3]

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1. Institute for Theoretical Physics, Bern University, CH-3012 Bern (Switzerland)
2. School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455 (United States)
3. Theoretical Physics Institute, University of Minnesota, Minneapolis, Minnesota 55455 (United States)

We calculate the electric screening mass in hot hadronic matter using two different approaches, chiral perturbation theory and the relativistic virial expansion with empirical phase shifts, and compare the results to each other and to a gas of free pions and [rho] mesons. We also compute the electric screening mass for noninteracting, charged bosons with mass [ital m] on a lattice to study likely finite size effects in lattice gauge theory simulations of continuum QCD. For a lattice of given size, the continuum can be properly represented only for a window in the ratio [ital T]/[ital m].

• DOE Contract Number: FG02-87ER40328
• OSTI ID: 5918645
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 48:9; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

662230* -- Quantum Chromodynamics-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CHIRAL SYMMETRY
COMPUTERIZED SIMULATION
FIELD THEORIES
GAUGE INVARIANCE
INVARIANCE PRINCIPLES
LATTICE FIELD THEORY
MASS
PERTURBATION THEORY
PHASE SHIFT
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
SIMULATION
SYMMETRY