Glueball - like screening masses in pure SU(3) at finite temperatures

Sep, 1993
19 pages
Published in:
  • Nucl.Phys.B 417 (1994) 289-306
e-Print:
Report number:
  • FSU-SCRI-93-106,
  • HLRZ-61-93,
  • BI-TP-93-49,
  • NSF-ITP-93-117

Citations per year

19942001200820152021012345
Abstract:
We investigate the finite-temperature excitation spectrum in the gluon sector of SU(3)SU(3) pure gauge theory through measurements of screening masses in correlations of loop operators. We develop the classification of such operators under the symmetry group of the `zz-slice'. In the confined phase of the theory, we find that the spectrum dynamically realises the zero temperature symmetries. We observe a large thermal shift of the 0 ++0~{++} glueball mass. In the deconfined phase, the spectrum distinguishes between operators coupling to electrically and magnetically polarised gluon fields. The former yields a screening mass equal to the Wilson-line screening mass; the latter, a method for the measurement of the magnetic mass in the high-temperature limit.
  • gauge field theory: SU(3)
  • lattice field theory
  • finite temperature
  • glueball: mass
  • mass: glueball
  • mass: screening
  • screening: mass
  • numerical calculations: Monte Carlo