Vacuumless cosmic strings in Einstein Cartan theory
  The gravitational fields of vacuumless global and gauge strings have been investigated in the context of Einstein Cartan theory under the weak field assumption of the field equations. It has been shown that global string and gauge string can have only repulsive gravitational effect on a test particle. 
F. Rahaman, B.C.Bhui, A Ghosh and R. Mondal