论文标题

跨界转变处的3D SU(2)伴随希格斯模型的红外物理

Infrared physics of the 3D SU(2) adjoint Higgs model at the crossover transition

论文作者

Niemi, Lauri, Rummukainen, Kari, Seppä, Riikka, Weir, David J.

论文摘要

我们研究了SU(2)Georgi-Glashow模型在三个维度上的交叉相变。在此模型中,希格斯制度中存在拓扑't Hooft-polyakov monopoles的限制。我们使用晶格蒙特卡洛模拟来研究跨跨跨跃迁的单极气体,并证明梯度流可用于重新归一致,使原本发散的单极数密度密度。单孔的凝结意味着该理论也接受了大量的光子样激发。我们表明,重新归一化的单极数密度与光子质量的平方大致成正比,这与半经典结果一致。我们的结果使跨越跨界的希格斯制度的行为有洞察力,该行为对包含伴随标量字段的标准模型理论超出了寄宿生的影响。

We study the crossover phase transition of the SU(2) Georgi-Glashow model in three dimensions. In this model, a confining condensate of topological 't Hooft-Polyakov monopoles exists in the Higgs regime. We use lattice Monte Carlo simulations to study the monopole gas across a crossover transition, and demonstrate that gradient flow can be used to renormalize the otherwise divergent monopole number density. The condensation of the monopoles means that the theory admits also a massive photon-like excitation. We show that the renormalized monopole number density is approximately proportional to the square of the photon mass, in agreement with semiclassical results. Our results give insight into behaviour of the Higgs regime near crossover, which has boarder implications for beyond the Standard Model theories containing adjoint scalar fields.

扫码加入交流群

加入微信交流群

微信交流群二维码

扫码加入学术交流群,获取更多资源