2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/197584We study the IR dynamics of the cascading non-conformal quiver theory on N regular and M fractional D3 branes at the tip of the complex cone over the first del Pezzo surface. The horizon of this cone is the irregular Sasaki-Einstein manifold Y^{2,1}. Our analysis shows that at the end of the cascade supersymmetry is dynamically broken.12 pages, 2 figures, minor changes, typos correctedHigh Energy Physics - Theorytext