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

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

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Abstrakt

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.

OriginalsprogEngelsk
Artikelnummer3
TidsskriftJournal of High Energy Physics
Vol/bind2022
Udgave nummer1
Antal sider54
ISSN1126-6708
DOI
StatusUdgivet - 2022

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