Work

Impact of primordial magnetic fields on the first-order electroweak phase transition

Year: 2026

Type: article

Abstract: We numerically study how the primordial magnetic field affects the first-order electroweak phase transition in the early Universe. We observe the following: 1) the phase transition process would be slowed down by the magnetic field; 2) the phenomenon of vortex structure of the Higgs condensation appears when the homogenesis hypermagentic field g ′ B Y e x / m W 2 ≳ 3.63 ; and, 3) the helical hypermagnetic field can dramatically enhance the sphaleron rate and validate the generation of the baryon asymmetry through the chiral anomaly.

Source: Physical review. D/Physical review. D.

DOI: 10.1103/jrd3-s1h2

Authors: Yuefeng Di, Ligong Bian, Rong-Gen Cai

Institutions: Chinese Academy of Sciences, University of Chinese Academy of Sciences, Chongqing University, Ningbo University

Language: English

Topic: Particle physics theoretical and experimental studies

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Funders: National Natural Science Foundation of China, Natural Science Foundation of Chongqing, National Key Research and Development Program of China, “Young Talents” Project of Northeast Agricultural University