On the Stability of Electroweak Strings (New Version)

1992/08/11 by Margaret James, M. James, Leandros Perivolaropoulos +6
Computer Science · Economics, Econometrics and Finance · Physics and Astronomy · #Complex Systems and Time Series Analysis #Computational Physics and Python Applications #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ph/9208218

1 figure (not include d, available upon request). Use jnl and reforder macros

arxiv created 1992/08/11 · openalex publication_date 1992/08/11 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We map the parameter space that leads to stable Z-vortices in the electroweak model. For sin² θ_W = 0.23, we find that the strings are unstable for a Higgs mass larger than 24 GeV. Given the latest constraints on the Higgs mass from LEP, this shows that, if the standard electroweak model is realized in Nature, the Z-vortex (in the bare model) is unstable.

Related

• Stabilization of the Electroweak String by the Bosonic Zero Mode
• Electroweak Strings and Fermions
• Electrweak Z-string And tanβ
• Decay of Z-string due to the fermion emission
• On vortices and solitons in Goldstone and abelian-Higgs models