First shot of the smoking gun: probing the electroweak phase transition in the 2HDM with novel searches for A → ZH in ℓ + ℓ − t t ¯ $$ {\ell}^{+}{\ell}^{-}t\overline{t} $$ and ννb b ¯ $$ \nu \nu b\overline{b} $$ final states

Abstract Recently the ATLAS collaboration has reported the first results of searches for heavy scalar resonances decaying into a Z boson and a lighter new scalar resonance, where the Z boson decays leptonically and the lighter scalar decays into a top-quark pair, giving rise to ℓ + ℓ − t t ¯ $$ {\el...

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Bibliographic Details
Main Authors: Thomas Biekötter, Sven Heinemeyer, Jose Miguel No, Kateryna Radchenko, María Olalla Olea Romacho, Georg Weiglein
Format: Article
Language:English
Published: SpringerOpen 2024-01-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP01(2024)107