Speaker
Sven Heinemeyer
(CSIC (Madrid, ES))
Description
We discuss di-Higgs production in the SM extended by a real singlet, RxSM. The RxSM is the simplest model that can yield a Strong First Order Electroweak Phase Transition (SFOEWPT) in the early universe. We concentrate on the regions yielding a SFOEWPT, including higher-order corrections to the triple Higgs couplings, which can be substantial. We discuss the sensitivity of the HL-LHC and high-energy $e^+e^-$ colliders (such as ILC or CLIC) to BSM triple Higgs couplings.
Authors
Alain Verduras Schaeidt
(DESY)
Andrea Parrra Arnay
Johannes Alf Braathen
(DESY)
Sven Heinemeyer
(CSIC (Madrid, ES))