Dimensional Reduction and Non-perturbative generation of magnetic mass in non-abelian gauge theory at finite temperature

A non-perturbative mass of $0.2719g^{2}T$ is generated for the magnetic sector of the $SU(2)$ gauge theory at high temperature due to the condensation of Polyakov \cite{Pol} monopole and antimonopole which form a magnetic glue ball. String tension for the spatial wilson loop is calculated which is of the same order of magnitude and has same temperature dependence as obtained from lattice simulation.