TY - JOUR
T1 - Detailed stability analysis of electroweak strings
AU - James, Margaret
AU - Perivolaropoulos, Leandros
AU - Vachaspati, Tanmay
N1 - Funding Information:
We would like to thank Miguel Ortiz for his help with the numerical calculations. This work was supported by a CfA postdoctoral fellowship (L.P.) and by the NSF (T.V.). M.J. acknowledges a research studentship from SERC.
PY - 1993/5/3
Y1 - 1993/5/3
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=0347426384&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0347426384&partnerID=8YFLogxK
U2 - 10.1016/0550-3213(93)90046-R
DO - 10.1016/0550-3213(93)90046-R
M3 - Article
AN - SCOPUS:0347426384
SN - 0550-3213
VL - 395
SP - 534
EP - 546
JO - Nuclear Physics, Section B
JF - Nuclear Physics, Section B
IS - 3
ER -