Mon Oct 26 2026: ULB PhysTH Seminar, Felix Kahlhoefer [KIT, Karlsruhe], [BEL-center:pheno]

Mon Oct 26 2026 2:00 PM: Dark matter from phase transitions - phase transitions from dark matterI will present the intriguing interplay between cosmological phase transitions and the out-of-equilibrium production of dark matter. If dark matter is produced non-thermally via non-renormalisable interactions (so-called UV-dominated freeze-in), the resulting abundance depends sensitively on the entire cosmological history. In particular, it can be strongly affected by cosmological first-order phase transition, after which the decaying scalar field transfers its energy density to the SM radiation and dilutes pre-existing particle abundances. I will discuss how this phase-in mechanism introduces a dependence of the final DM abundance on the details of the phase transition, in particular the subsequent equation of state of the universe. Using results from lattice simulations, I will show that the collision of highly-relativistic bubble walls leads to an equation of state that may differ significantly fro

Tue Oct 27 2026: Lecture on "Modern Bayesian Inference" - B. Zaldívar [IFIC, Valencia]

Tue Oct 27 2026 10:00 AM:

Wed Oct 28 2026: Lecture on "Modern Bayesian Inference" - B. Zaldívar [IFIC, Valencia]

Wed Oct 28 2026 10:00 AM:

Thu Oct 29 2026: Lecture on "Modern Bayesian Inference" - B. Zaldívar [IFIC, Valencia]

Thu Oct 29 2026 10:00 AM:

ULB PhysTH - Week of 10/25/2026

Mon Oct 26 2026: ULB PhysTH Seminar, Felix Kahlhoefer [KIT, Karlsruhe], [BEL-center:pheno]

Tue Oct 27 2026: Lecture on "Modern Bayesian Inference" - B. Zaldívar [IFIC, Valencia]

Wed Oct 28 2026: Lecture on "Modern Bayesian Inference" - B. Zaldívar [IFIC, Valencia]

Thu Oct 29 2026: Lecture on "Modern Bayesian Inference" - B. Zaldívar [IFIC, Valencia]