Detailed stability analysis of electroweak strings

Margaret James, Leandros Perivolaropoulos, Tanmay Vachaspati

Research output: Contribution to journalArticle

87 Scopus citations


We give a detailed stability analysis of the Z-string in the standard electroweak model. We identify the mode that determines the stability of the string and numerically map the region of parameter space where the string is stable. For sin2θW = 0.23, we find that the strings are unstable for a Higgs mass larger than 23 GeV. Given the latest constraints of the Higgs mass from LEP, this shows that, if the standard electroweak model is realized in nature, the existing vortex solutions are unstable.

Original languageEnglish (US)
Pages (from-to)534-546
Number of pages13
JournalNuclear Physics, Section B
Issue number3
StatePublished - May 3 1993


ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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