Surprises from the resummation of ladders in the ABJ(M) cusp anomalous dimension

  title={Surprises from the resummation of ladders in the ABJ(M) cusp anomalous dimension},
  author={Marisa Bonini and Luca Griguolo and M. Preti and Domenico Seminara},
  journal={Journal of High Energy Physics},
A bstractWe study the cusp anomalous dimension in N$$ \mathcal{N} $$ = 6 ABJ(M) theory, identifying a scaling limit in which the ladder diagrams dominate. The resummation is encoded into a Bethe-Salpeter equation that is mapped to a Schroedinger problem, exactly solvable due to the surprising supersymmetry of the effective Hamiltonian. In the ABJ case the solution implies the diagonalization of the U(N ) and U(M ) building blocks, suggesting the existence of two independent cusp anomalous… 

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