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arXiv 1003.3163hep-ph
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四费米子和八费米子相互作用模型中动力学对称性破缺的曲率和拓扑效应

Curvature and topological effects on dynamical symmetry breaking in a four- and eight-fermion interaction model

Masako Hayashi, Tomohiro Inagaki

摘要:

在有限曲率、有限尺寸和非平凡拓扑的情况下,研究了对称性破缺的动力学机制。一个四费米子和八费米子相互作用模型被认为是一个原型模型,诱导对称性破缺在大统一时代。通过对1/N展开式首阶有效势的维数正则化,我们计算了弱弯曲时空和具有非平凡拓扑的平坦时空中划分对称相和破碎相的相边界$R^{D-1} \otimes S^1$ .

英文摘要:

A dynamical mechanism for symmetry breaking is investigated under the circumstances with the finite curvature, finite size and non-trivial topology. A four- and eight-fermion interaction model is considered as a prototype model which induces symmetry breaking at GUT era. Evaluating the effective potential in the leading order of the 1/N-expansion by using the dimensional regularization, we explicitly calculate the phase boundary which divides the symmetric and the broken phase in a weakly curved space-time and a flat space-time with non-trivial topology, $R^{D-1} \otimes S^1$.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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