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, Campusvej 55, 5230, Odense M, Denmark;Department of Astronomy and Theoretical Physics, Lund University, 22100, Lund, Sweden;Department of Physics and Astronomy, University of Sussex, BN1 9QH, Brighton, UK;INFN Sezione di Firenze, Via G. Sansone 1, I-50019, Sesto Fiorentino, Italy;Scuola Superiore Meridionale, Largo S. Marcellino, 10, 80138, Napoli, NA, Italy;CP3-Origins, University of Southern Denmark, Campusvej 55, 5230, Odense M, Denmark;Dipartimento di Fisica “E. Pancini”, Università di Napoli Federico II

[2]  INFN sezione di Napoli, Complesso Universitario di Monte S. Angelo Edificio 6, via Cintia, 80126, Napoli, Italy;

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

DOI  :  10.1007/JHEP01(2022)003

来源: Springer

【 摘 要 】

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】

CC BY