  Long-range quantum correlations between particles are usually formulated by
assuming the persistence of an entangled state after the particles have
spearated. Here this approach is re-examined based upon studying the
correlations present in a pair of EPR spins. Two types of correltions are
identified. The first, due to the quantum interference terms is parity. This
symmetry property characterizes entanglement. Second is correlation due to
conservation of angular momentum. The two contributions are equal and have the
same functional form. When entanglement is present, Bell's inequalities are
violated but when parity is destroyed by disentanglement, Bell's inequalities
are satisfied. It is shown tht some experiments which have hiterto been
interpreted by entangled states can be better described by disentanglement.
Implications for quantum non-locality are discussed.
