Strange axial-vector mesons mixing angle

The masses of K-1(P-3(1)) and K-1(P-1(1)) are considered in a nonrelativistic constituent quark model, and the absolute value of the K-1(P-3(1))-K-1(P-1(1)) mixing angle is determined to be about 59.29 degrees. The comparison of the theoretical predictions on the strong decay widths of K-1(1270) and K-1(1400) in the P-3(0) decay model as well as the production ratio of these two states in the tau decay between the available experimental data strongly favors that the K-1( P-3(1)) - K-1 (P-1(1)) mixing angle is about + 59.29 degrees.