Description
This poster shows a combined test of CP violation in the coupling between Higgs Boson and electroweak gauge boson (W/Z) via decay channels including H→γγ, ZZ, WW, ττ, and bb analysis which were conducted by ATLAS experiment using the full Run-2 pp dataset at √𝑠 = 13 TeV. The constrain is set on parameters describing the strength of CP-odd component in coupling in effective field theory base. The results represent the most stringent constraints up to date on CP violation in Higgs-weak boson couplings