Superconducting Electroweak Strings
Michael Volkov
Laboratoire de Mathématiques
Lundi 15/01/2007, 11:00
Salle Claude Itzykson, Bât. 774, Orme des Merisiers
Classical solutions describing strings endowed with an
electric charge and carrying a constant electromagnetic
current are constructed within the bosonic sector of the
Electroweak Theory. For any given ratio of the Higgs boson mass
to W boson mass and for any Weinberg's angle, these strings comprise a
family that can be parameterized by values of the current through their
cross section, $I_3$, by their electric charge per unit string length,
$I_0$, and by two integers. These parameters determine the electromagnetic and Z
fluxes, as well as the angular momentum and momentum densities of the
string.
For $I_0\to 0$ and $I_3\to 0$ the solutions reduce to Z strings, or, for
solutions with $I_0=\pm I_3$, to the W-dressed Z strings whose existence
was discussed some time ago.