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

Journal of High Energy Physics

Regular Article - Theoretical Physics

Kari Rummukainen¹  David J. Weir¹  Riikka Seppä¹  Lauri Niemi² 

[1] Department of Physics and Helsinki Institute of Physics, P.O. Box 64, FI-00014, University of Helsinki, Finland;Department of Physics and Helsinki Institute of Physics, P.O. Box 64, FI-00014, University of Helsinki, Finland;Tsung-Dao Lee Institute, Shanghai Jiao Tong University, 200240, Shanghai, China;

关键词: Phase Transitions;    Solitons Monopoles and Instantons;    Nonperturbative Effects;   

DOI  :  10.1007/JHEP02(2023)212

 received in 2022-07-04, accepted in 2023-02-09,  发布年份 2023

来源: Springer

【 摘 要 】

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.

【 授权许可】

Unknown   
© The Author(s) 2023