Mon·Jul 29, 2002Monday·July 29, 2002

1. 01*

   Screening and confinement in U(1)^{N-1} Abelian effective theories

   Tsuneo Suzuki🇯🇵 · M.N. Chernodub🇷🇺

   We discuss the effect of dynamical charged particles in U(1)^{N-1} Abelian effective theories of QCD. Screening and confinement at zero temperature are explained qualitatively. The effect of dynamically charged particle is expressed in terms of an effective action of integer electric currents. When a screening is expected, the static potential shows a flattening in the long-range region and a linear behavior in the intermediate region. We show why the screening is better observed in the Polyakov-loop correlators than in the Wilson loops. The breaking of the adjoint string is explained without the Z(N) picture.

   hep-lathep-phhep-thPLB(2003)·13 citations
2. 02*

   An Analytic Variational Study of the Mass Spectrum in 2+1 Dimensional SU(3) Hamiltonian Lattice Gauge Theory

   Jesse Carlsson🇦🇺 · John A.L. McIntosh🇦🇺 · Bruce H.J. McKellar🇦🇺 · Lloyd C.L. Hollenberg🇦🇺

   We calculate the masses of the lowest lying eigenstates of improved SU(2) and SU(3) lattice gauge theory in 2+1 dimensions using an analytic variational approach. The ground state is approximated by a one plaquette trial state and mass gaps are calculated in the symmetric and antisymmetric sectors by minimising over a suitable basis of rectangular states.

   hep-latPRD(2003)·3 citations

* Reconstructed cohort: no mailing for this day survives in the archive. Papers are grouped by their submission times and arXiv's announcement cut-off, assuming announcement without delay; positions follow identifier order. Validated at ~91% exact-day agreement against the archived era.