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

Manuel Reichert, Francesco Sannino, Zhi Wei Wang, Chen Zhang

    Research output: Contribution to journalArticlepeer-review

    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.

    Original languageEnglish
    Article number3
    JournalJournal of High Energy Physics
    Volume2022
    Issue number1
    DOIs
    Publication statusPublished - 2022 Jan

    Subject classification (UKÄ)

    • Physical Sciences

    Free keywords

    • Confinement
    • Cosmology of Theories beyond the SM
    • Spontaneous Symmetry Breaking
    • Thermal Field Theory

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