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T: Fachverband Teilchenphysik

T 7: Higgs, Di-Higgs I

T 7.1: Talk

Monday, March 20, 2023, 16:30–16:45, HSZ/0105

Strong first-order EWPTs in a Type-II 2HDM-EFT and their implications on Higgs pair production — Anisha^1,3, •Lisa Biermann², Milada Margarete Mühlleitner², and Christoph Englert³ — ¹Indian Inst. Tech., Kanpur, India — ²ITP, KIT, Karlsruhe, Germany — ³Glasgow U., Glasgow, United Kingdom

We study the scalar dimension six effective field theory (EFT) extended 2HDM-Type-II in its possibility to promote the strength of the electroweak phase transition to a strong first-order electroweak phase transition (SFOEWPT). Therefore, a global minimization of the one-loop daisy-resummed effective potential at finite temperature is performed with the C++ code BSMPT. Our special focus lies on investigating the connection between Wilson coefficient constellations that enable an SFOEWPT and their phenomenological implications on Higgs pair production (resonant and non-resonant) in top final states.