Simulations of a bubble wall interacting with an electroweak plasma

Journal of High Energy Physics

Zong-Gang Mou¹  Anders Tranberg¹  Paul M. Saffin² 

[1] Faculty of Science and Technology, University of Stavanger, 4036, Stavanger, Norway;School of Physics and Astronomy, University Park, University of Nottingham, NG7 2RD, Nottingham, U.K.;

关键词: Cosmology of Theories beyond the SM;    Lattice Quantum Field Theory;    Non-perturbative Effects;   

DOI  :  10.1007/JHEP02(2021)189

来源: Springer

【 摘 要 】

We perform large-scale real-time simulations of a bubble wall sweeping through an out-of-equilibrium plasma. The scenario we have in mind is the electroweak phase transition, which may be first order in extensions of the Standard Model, and produce such bubbles. The process may be responsible for baryogenesis and can generate a background of primordial cosmological gravitational waves. We study thermodynamic features of the plasma near the advancing wall, the generation of Chern-Simons number/Higgs winding number and consider the potential for CP-violation at the wall generating a baryon asymmetry. A number of technical details necessary for a proper numerical implementation are developed.

【 授权许可】

CC BY