Cosmological Phase Transitions in Warped Space: Gravitational Waves and Collider Signatures

Understand

We study the electroweak phase transition within a 5D warped model including a scalar potential with an exponential behavior, and strong back-reaction over the metric, in the infrared.

• By means of a novel treatment of the superpotential formalism, we explore parameter regions that were previously inaccessible.
• We find that for large enough values of the t'Hooft parameter (e.g.
• $N\simeq 25$) the holographic phase transition occurs, and it can force the Higgs to undergo a first order electroweak phase transition, suitable for electroweak baryogenesis.