Título:
|
Stability of Z strings in strong magnetic fields
|
Autor/a:
|
Garriga Torres, Jaume; Montes, Xavier
|
Otros autores:
|
Universitat de Barcelona |
Abstract:
|
We show that the Z-strings of the standard electroweak theory can be stabilized by strong external magnetic fields, provided that $\beta^{1/2} \equiv M_H/M_Z\leq 1$, where $M_H$ and $M_Z$ are the Higgs and Z masses. The magnetic fields needed are larger than $\beta^{1/2} B_c$ and smaller than $B_c$, where $B_c\equiv M^2_W/e$ is the critical magnetic field which causes W-condensation in the usual broken phase vacuum. If such magnetic fields were present after the electroweak transition, they would stabilize strings for a period comparable to the inverse Hubble rate at that time. Pair creation of monopoles and antimonopoles linked by segments of string is briefly considered. |
Materia(s):
|
-Teoria de camps (Física) -Cosmologia -Models de corda -General theory of fields and particles -Cosmology -Stellar systems; interstellar medium; galactic and extragalactic objects and systems; the Universe -String models |
Derechos:
|
(c) American Physical Society, 1995
|
Tipo de documento:
|
Artículo Artículo - Versión publicada |
Editor:
|
American Physical Society
|
Compartir:
|
|