Casimir scaling in glueballs in SU($N$) and Sp($2N$) gauge theories: hints from constituent approaches

F. Buisseret, C. Chevalier, V. Mathieu +1

We show that the lattice glueball masses $M_G$ versus $N$ in SU($N$) and Sp($2N$) Yang-Mills theories scale as $\frac{M_G}{\sqrt{\sigma }}\sim \sqrt{\frac{C_2(adj)}{C_2(f)}}$, with $\sigma$ the…