  Spin-charge separation, a crucial ingredient in 2D models of strongly
correlated systems, in mostly considered in condensed matter applications. In
this paper we present a relativistic field-theoretic model in which charged
particles of spin 1/2 emerge by soldering spinless charges and magnetic
vortices in a confinement quantum phase transition modelled as a tensor Higgs
mechanism. The model involves two gauge fields, a vector one and a two-form
gauge field interacting by the topological BF term. When this tensor gauge
symmetry is spontaneously broken charges are soldered to the ends of magnetic
vortices and thus confined by a linear potential. If the vector potential has a
topological $\theta $-term with value $\theta = \pi$, the constituents of this
"meson" acquire spin 1/2 in this transition.
