title: Universal reconnection of non-Abelian cosmic strings.
abstract: We show that local and semilocal strings in Abelian and non-Abelian gauge theories with critical couplings always reconnect classically in collision, by using moduli space approximation. The moduli matrix formalism explicitly identifies a well-defined set of the vortex moduli parameters. Our analysis of generic geodesic motion in terms of those shows right-angle scattering in head-on collision of two vortices, which is known to give the reconnection of the strings.
authors.affiliation: Institute of Physics, University of Tokyo, Komaba 3-8-1, Tokyo 153-8902, Japan.
authors.forename: Minoru
authors.initials: M
authors.lastname: Eto
authors.forename: Koji
authors.initials: K
authors.lastname: Hashimoto
authors.forename: Giacomo
authors.initials: G
authors.lastname: Marmorini
authors.forename: Muneto
authors.initials: M
authors.lastname: Nitta
authors.forename: Keisuke
authors.initials: K
authors.lastname: Ohashi
authors.forename: Walter
authors.initials: W
authors.lastname: Vinci