A. Gangui et al., COULD ELECTROMAGNETIC CORRECTIONS SOLVE THE VORTON EXCESS PROBLEM, Physical review. D. Particles and fields, 57(4), 1998, pp. 2580-2589
The duality between the master function and Lagrangian formalisms for
the study of the dynamics of general cosmic strings is reviewed to sho
w their respective uses in various situations. We then consider an exp
licit model for which the Lagrangian method is untractable whereas the
master function provides analytic solutions. From it, the modificatio
ns of circular cosmic string loop dynamics due to the electromagnetic
self-interaction are then calculated and shown to reduce the available
phase space for reaching classical vorton states. As it turns out, th
is effect might significantly decrease their remnant abundance. [S0556
-2821(97)00824-2].