DETAILED STABILITY ANALYSIS OF ELECTROWEAK STRINGS

被引：93

作者：

JAMES, M

PERIVOLAROPOULOS, L

VACHASPATI, T

机构：

[1] HARVARD SMITHSONIAN CTR ASTROPHYS,DIV THEORET ASTROPHYS,CAMBRIDGE,MA 02138

[2] TUFTS UNIV,TUFTS INST COSMOL,DEPT PHYS & ASTRON,MEDFORD,MA 02155

来源：

NUCLEAR PHYSICS B | 1993年 / 395卷 / 03期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0550-3213(93)90046-R

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

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 sin2theta(W) = 0.23, we find that the strings are unstable for a Higgs mass larger than 23 GeV. Given the latest constraints on the Higgs mass from LEP, this shows that, if the standard electroweak model is realized in nature, the existing vortex solutions are unstable.

引用

页码：534 / 546

页数：13

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