CP sensitive observables of a hypothetical heavy spin-0 particle with $γγ-$interactions dominant

We study observables sensitive to tensor structure of interactions of a hypothetical heavy spin-0 particle. It is assumed that the interactions of this particle are primary with photons; interactions with vector bosons $gg$, $WW$, $ZZ$, and quarks $t\bar{t}$ are suppressed. The above assumptions favor the production of this hypothetical particle through the vector boson fusion mechanism structurally dominated by $γγ$ and $γZ$ interactions. This particle will be produced in association with two light quarks. It is shown that the difference in azimuthal angle between the tagging jets provides an observable sensitive to the CP properties of this hypothetical particle.

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