Title:
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Stability of Z strings in strong magnetic fields
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Author:
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Garriga Torres, Jaume; Montes, Xavier
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Other authors:
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Universitat de Barcelona |
Abstract:
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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. |
Subject(s):
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-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 |
Rights:
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(c) American Physical Society, 1995
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Document type:
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Article Article - Published version |
Published by:
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American Physical Society
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