Constrained O(n) models from gauged internal OSp(n/2) via Becchi-Rouet-Stora supersymmetry

Dimensional reduction via supercoset space is applied to the quantization of OSp(n2)$\mathrm{OSp}\left(n2\right)$ gauge theory over six-dimensional superspace. In four dimensions this results in an O(n)$O\mathrm{}\left(n\right)\mathrm{}$ theory with a massless Higgs scalar in the vector (n$n$-dimensional) representation, with self-coupling strength 3g28$3g28$. The formalism also entails fermions in specific combinations of O(n)$O\mathrm{}\left(n\right)\mathrm{<...}$