"Glueballs" in the Quantum Mechanics of three large massless Yang-Mills coupled Matrices

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Abstract
We use a loop truncated Jevicki-Sakita effective collective field Hamiltonian to obtain, over a very large range of values of 't Hooft's coupling, and directly in the large N limit, the large N (planar) ground state energy, the planar ground state expectation values of invariant correlators, and the 1/N spectrum of the quantum mechanical system of three massless Yang-Mills coupled matrices. This captures the dynamics of the (residual) gauge invariant sector of the spatially reduced 3+1 dimensional pure Yang-Mills theory, in the large N limit. The large N loop space constraints are handled by the use of master variables. As is the case for two matrices, the method is highly efficient directly in the massless limit, and it reproduces to a very high precision the scaling dependence of physical quantities, determined by their dimensions, on the dimensionful 't Hooft coupling. We obtain the bound state masses of "glueballs", their quantum numbers and ensuing degeneracies.
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