Direct CP violation in the B¯s→K+K−K+K− decay process induced by interferences of the intermediate vector particles

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We investigate CP violation in the decay process B¯s→VV→K+K−K+K− within the framework of perturbative quantum chromodynamics, where V represents vector mesons ϕ, ρ, and ω. We analyze the mixing mechanism among ϕ−ρ0−ω and provide amplitudes for these decay processes. Moreover, we explore CP violation in the four-body decay process of B¯s0→K+K−K+K− involving intermediate vector mesons and their mixing. Notably, significant CP violation is observed for specific two-vector meson intermediate states. Additionally, a substantial amount of CP violation arises from vector mixing when the invariant mass of K+K− falls within a certain range. This study holds potential implications for future detection by the LHC experiment. Published by the American Physical Society 2025