Determination of the CPV Higgs mixing angle in ZZ-fusion at 1.4 TeV CLIC

Abstract

In this talk we discuss the CP violation in the Higgs sector under assumption that Higgs is a mixture of CP even and odd states. Study is done in ZZ-fusion, at the intermediate energy stage of CLIC, in full simulation of a detector and machine and physics related backgrounds. By measuring kinematic properties of electron and positron in the final state, in the Higgs exlusive decay to bb¯ to reduce backgrounds, we discuss the statistical precision of CP-violating mixing angle measurement with 2.5 ab−1 of data.