The asymptotic large momentum transfer behavior of the deuteron form factor and the form of the deuteron distribution amplitude at short distances are derived from perturbative quantum chromodynamics. The fact that the six-quark state is 80 percent hidden color at small transverse separation implies that the deuteron form factors cannot be described at large Q2 by meson-nucleon degrees of freedom, and that the nucleon-nucleon potential is repulsive at short distances.

A comprehensive, relativistic many-body approach to hadron structure is advanced based on the Coulomb gauge QCD Hamiltonian. Our method incorporates standard many-body techniques which render the approximations amenable to systematic improvement. Using BCS variational methods, dynamic chiral symmetry breaking naturally emerges and both quarks and gluons acquire constituent masses. Gluonia are studied both in the valence and in the collective, random phase approximations. Using representative values for the strong coupling constant and string tension, calculated quenched glueball masses are found to be in remarkable agreement with lattice gauge theory.Typeset using REVT E X 1 Our knowledge of the standard model cannot be considered complete until explicit gluonic degrees of freedom are found and understood [1]. In an effort to address this issue we advance a comprehensive framework for consistently describing and understanding hadron structure -including the glueball and hybrid sectors. The model is motivated in part by our previous studies of relativistic [4] The idea is to build on the known successes of the constituent quark model for heavy quarks by considering a many-body relativistic Hamiltonian in a quasiparticle basis where dynamical chiral symmetry breaking and massive gluon modes are explicit. Such a model incorporates an extensive Fock space but reduces to the simple quark model in the valence approximation. Furthermore, the simultaneous presence of quark and gluon degrees of freedom permits studying their mixture in hybrid and glueball states. This is especially important since glueball searches tend to occur in meson-rich regions of the hadron spectrum and also because it may be years before lattice gauge calculations provide significant insight. This letter focuses on the gluonic sector of the model Hamiltonian, presenting the glueball spectrum calculation and a discussion of the associated approximation schemes. In the summary we comment on other issues regarding applications to mesons, baryons and hybrids.There have been a variety of previous glueball studies: the Bag Model [6][7][8], QCD

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