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On the Stability of Electroweak Strings (New Version)

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 نشر من قبل Leandros Perivolaropoulos
 تاريخ النشر 1992
  مجال البحث
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We map the parameter space that leads to stable Z-vortices in the electroweak model. For $sin^2 theta_W = 0.23$, 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.



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