[IP2I Seminar] Particle Phenomenology - Nico Benincasa: "Conformal versus Non-Conformal 2HDM: Phase Transitions and Gravitational Waves"

lundi 5 mai 2025, 11:00 → 12:00 Europe/Paris

Dirac/RdC-Amphithéâtre (IP2I)

The dynamics of phase transitions and their resulting gravitational-wave signal are studied in the conformal (C2HDM) and non-conformal (NC2HDM) CP-conserving 2HDM. Conformal tree-level potentials naturally lead to large supercooling when quantum and thermal corrections are included. We however find that first-order phase transitions are more strongly supercooled in the NC2HDM compared to the C2HDM. Finally, we calculate the gravitational-wave signal for both C2HDM and NC2HDM phase transitions, suggesting their detectability in the latter case by future gravitational-wave detectors such as LISA.

IP2I seminars - poster 2HDM.pdf