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Towards finding the single-particle content of two-dimensional adjoint QCD
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The single-particle content of two-dimensional adjoint QCD remains elusive due to the inability to distinguish single- from multi-particle states. To find a criterion we compare several approximations to the theory. Starting from the asymptotic theory (no pair production, only singular operators), we construct sets of eigenfunctions in the lowest parton sectors of the theory. A perturbative treatment of the omitted operators is performed. We find that multi-particle states are absent if pair-production is disallowed and hints for a double Regge trajectory of single-particle states. We discuss the structure of the eigensystem of the theory, and present the reason for the fact that bosonic single-particle states do not form multi-particle states.
Forward citations
Cited by 2 Pith papers
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Infinite matrix product states for $(1+1)$-dimensional gauge theories
A matrix product operator construction using link-enhanced MPOs enables infinite-lattice simulations of (1+1)D gauge theories with manifest translation invariance and symmetry.
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Supercurrents and (Partial) Supersymmetry in Adjoint QCD$_2$ and Its Generalizations
A conserved Lorentz covariant supercurrent is constructed in adjoint QCD2 and its generalizations, fixing the supersymmetric mass and yielding new fully supersymmetric gapless models.
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