Standard model with new order parameters at finite temperature

Standard model with new order parameters at finite temperature
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有限温度下具有新阶参数的标准模型

DOI:
10.1103/physrevd.89.105032
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发表时间:
2014
期刊:
影响因子:
5
通讯作者:
竹永和典
竹永和典
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
坂本眞人;竹永和典

文献摘要

相似文献

我们通过考虑希格斯真空期望值和欧几里得时间方向规范场零模态两种阶次参数,在四维单环水平上考虑标准模型的有限温度有效势。我们研究模型的真空结构,重点关注新相的存在,其中零模态,即新的阶参数,产生除规范组中心之外的非平凡真空期望值。我们发现,在某些条件下,在有限温度下不会出现新相。
We consider the finite temperature effective potential of the standard model at the one-loop level in four dimensions by taking account of two kinds of order parameters, the Higgs vacuum expectation value and the zero modes of gauge fields for the Euclidean time direction. We study the vacuum structure of the model, focusing on the existence of the new phase, where the zero modes, that is, the new order parameters, develop nontrivial vacuum expectation values except for the center of the gauge group. We find that under certain conditions there appears no new phase at finite temperature.