overlineK∗(890) production in K -p→NK3 π final states at 10 GeV/ c

Results are presented for reactions of the type K^-p→ overlineK^∗ (890) ( Nππ) at 10 GeV/ c where the overlineK^∗ is produced forwards and the nucleon and two pions are all produced backwards in the c.m. Of the three real parts of the overlineK^∗ density matrix elements only one is non-zero, while all imaginary parts are consistent with zero. In the non-charge-exchange channel, K^-p→ K^∗-( Nππ) ⁺, natural and unnatural spin-parity exchanges are equally important, while in the charge-exchange channels, K^-p→ overlineK^∗0( Nππ) ⁰, unnatural spin-parity exchanges dominate. These results are compared to those for K^-p→ K^{∗ overlineo}( Nπ) and found to be very similar for both the charge and non-charge-exchange reactions. However, they are different from those for K^-p→ K^{∗ overlineo}N.