Towards a Coulomb gas of instantons in the SO(4)xU(1) Higgs model on R_4

K. Arthur, G. M. O'Brien, D. H. Tchrakian

The $SO(4)\times U(1)$ Higgs model on ${\mathbb{R}}_4$ is extended by a $F^3$ term so that the action receives a nonvanishing contribution from the interactions of 2-instantons and 3-instant…