Chi_c0 decays exhibit maximal Bell violation and entanglement, chi_c1 shows angle-modulated violation, and chi_c2 baryon pairs are separable with no violation.
(17) The structure of the spin density matrixρ B ¯B clearly shows how C-parity conservation restricts helicity choices inχ c1 →B ¯Bdecay
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Bell nonlocality and entanglement in $\chi_{cJ}$ decays into baryon pair
Chi_c0 decays exhibit maximal Bell violation and entanglement, chi_c1 shows angle-modulated violation, and chi_c2 baryon pairs are separable with no violation.