Hadron spectroscopy using the light-front holographic Schrödinger equation and the ’t Hooft equation

Light-front holographic QCD provides a successful first approximation to hadron spectroscopy in the chiral limit of ($3+1$)-dim light-front QCD, where Schr\"odinger-like equation, with an emerging confining scale, $\ensuremath{\kappa}$, governs confinement transverse direction. In its supersymmetric formulation, holography predicts that each baryon has two superpartners: meson and tetraquark, their degenerate masses being generated by same $\ensuremath{\kappa}$. nature, this mass degeneracy is lifted symmetry breaking longitudinal confinement. paper, we show latter can be successfully captured 't Hooft equation ($1+1$)-dim, large ${N}_{c}$, QCD. Together, Schr\"odinger provide good global description data across full spectrum universal