Speaker
Zhuoni Qian
(Hangzhou Normal University)
Description
We fully explore the prospect of using the off $Z$-pole run at
future lepton colliders to probe the new physics (NP) beyond the Standard Model (SM) via dimension-6 four-fermion effective operators. With interference between the dimesion-6 operator and SM diagram contributions to the $e^+ e^- \rightarrow f \bar f$ scattering processes, the NP effects shows up at collision energy
off of the $Z$ pole. The $Z$ line shape scan is thus useful not just for the $Z$ mass and width measurements, but
also for NP probes. I will discuss the key observable and uncertainties involved in order to reach a realistic prospects for the reach.
Primary authors
Prof.
Shao-Feng Ge
(TDLI-SJTU)
Zhuoni Qian
(Hangzhou Normal University)
Prof.
Michael Ramsey-Musolf
Jia Zhou
