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Article Abstract
We propose a method for probing CP-violation in the heavy (pseudo)scalar sector of an extended Higgs model, in which we make simultaneous use of the ( ) and interactions of a heavy Higgs state . The CP-even component of can be probed through the tree-level interaction, while the CP-odd component of can be probed if the final pair can be tested to form a state. We can then confirm CP-violation if both CP-even and CP-odd components of are discovered. This is possible at the Compact Linear Collider (CLIC) by exploiting production from vector-boson fusion (VBF) and decay to pairs. We analyze the distribution of the azimuthal angle between the leptons coming from top and antitop quarks, which allows one to disentangle the CP nature of such a heavy Higgs state. We also show its implications for the two-Higgs-doublet model (2HDM) with CP-violation.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC12198080 | PMC |
| http://dx.doi.org/10.1140/epjc/s10052-025-14369-6 | DOI Listing |
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