Gravitational waves and dark matter from classical scale invariance

Supercool exit: Gravitational waves from QCD-triggered conformal symmetry breaking

“…As a consequence, the breaking of the electroweak (EW) symmetry is realised dynamically, either by radiative corrections [26][27][28][29][30][31][32][33][34][35] or strong dynamics [36][37][38][39][40][41][42][43]. Classically conformal theories therefore not only alleviate the hierarchy problem [44], but can also account for dark matter [45][46][47][48][49][50][51][52][53][54][55][56], generate the baryon asymmetry of the universe [57][58][59][60][61][62], and produce a SGWB [63][64][65][66][67][68][69][70][71][72].…”