Speaker
Felix Yu
(JGU Mainz)
Description
We investigate the prospects for producing new, light, hidden states at a future $e^+e^-$ collider in a Higgsed dark $U(1)_D$ model, (the Double Dark Portal model). The simultaneous presence of both vector and scalar portal couplings immediately modifies the SM $e^+e^-\to Zh$ process at leading order in each coupling. After accounting for current constraints, we demonstrate that a future Higgs factory will have leading sensitivity to the two portal couplings in production, decay, and radiative return processes. Besides exotic Higgs decays, we highlight the importance of direct dark vector and scalar production tagged from the recoil mass method.
Primary author
Felix Yu
(JGU Mainz)
Co-authors
Jia Liu
(Peking U.)
Xiaoping Wang
(Beihang U.)
