ar X iv : h ep - l at / 9 81 10 10 v 1 6 N ov 1 99 8 Hadrons with a heavy colour - adjoint particle . UKQCD Collaboration

ar X iv : h ep - l at / 9 81 10 21 v 1 1 6 N ov 1 99 8 Exotica and the Confining Flux

Recent developments in Quantum Chromodynamics (QCD) are reviewed on three major topics where nonper-turbative gluon excitations of the QCD vacuum and the physical properties of the confining flux play a central role: (1) New lattice results on the spectrum and wave functions of heavy QQgluon molecules, known as heavy hybrids, will be discussed. (2) Recent advances on the glueball spectrum in la...

ar X iv : h ep - p h / 99 11 36 8 v 2 1 6 N ov 1 99 9 SLAC – PUB – 8295 November 1999

Some of the most difficult theoretical challenges of QCD occur at the interface of the perturbative and nonperturbative regimes. Exclusive and semi-exclusive processes, the diffractive dissociation of hadrons into jets, and hard diffractive processes such as vector meson leptoproduction provide new testing grounds for QCD and essential information on the structure of light-cone wavefunctions of...

ar X iv : h ep - l at / 9 81 10 16 v 1 1 1 N ov 1 99 8 Lattice String Breaking and Heavy Meson Decays

We show how string breaking on the lattice, treated as a mixing effect, can be related to decay rates for heavy quark systems. We use this to make a preliminary calculation of the energy split at maximum mixing for static quarks in QCD from the decay rate for Υ(4S) → B ¯ B. We extend the calculation to achieve rough estimates for the contributions of channels involving B, B * , B s and B * s me...

ar X iv : h ep - p h / 99 11 40 8 v 1 19 N ov 1 99 9 Quark Matter 99 Summary : Hadronic Signals

ar X iv : h ep - l at / 9 41 10 13 v 1 9 N ov 1 99 4 1 Efficient Hadronic Operators in Lattice Gauge Theory

We propose the study of non-local gauge invariant operators to obtain an uncontaminated ground state for hadrons. The efficiency of the operators is shown by looking at the wave function of the first excited state, which has a node as a function of spatial extent of the operator.