Dark confinement and chiral phase transitions: gravitational waves vs matter representations

Journal of High Energy Physics

Zhi-Wei Wang¹  Manuel Reichert²  Chen Zhang³  Francesco Sannino⁴ 

[1] CP3-Origins, University of Southern Denmark;Department of Physics and Astronomy, University of Sussex;INFN Sezione di Firenze;Scuola Superiore Meridionale;

关键词: Cosmology of Theories beyond the SM;    Thermal Field Theory;    Confinement;    Spontaneous Symmetry Breaking;   

DOI  :  10.1007/JHEP01(2022)003

来源: DOAJ

【 摘 要 】

Abstract We study the gravitational-wave signal stemming from strongly coupled models featuring both, dark chiral and confinement phase transitions. We therefore identify strongly coupled theories that can feature a first-order phase transition. Employing the Polyakov-Nambu-Jona-Lasinio model, we focus our attention on SU(3) Yang-Mills theories featuring fermions in fundamental, adjoint, and two-index symmetric representations. We discover that for the gravitational-wave signals analysis, there are significant differences between the various representations. Interestingly we also observe that the two-index symmetric representation leads to the strongest first-order phase transition and therefore to a higher chance of being detected by the Big Bang Observer experiment. Our study of the confinement and chiral phase transitions is further applicable to extensions of the Standard Model featuring composite dynamics.

【 授权许可】

Unknown