Identified hadron production and light quark fragmentation in Z0 decays

We have measured the differential, cross sections for the production of pi(+), K+, K-0, K-*0, phi, p, Lambda and their corresponding antiparticles in separate samples of flavor-tagged Z(0) --> light-flavor (u (u) over bar, d (d) over bar; or s (s) over tilde), Z(0) --> c (c) over bar and Z(0) --> b (b) over bar events. Clear flavor dependences are observed, and the results are compared with the predictions of three fragmentation models. We have also performed a direct measurement of A(s), the parity-violating coupling of the Z(0) to strange quarks, by measuring the left-right-forward-backward production asymmetry in polar angle of the tagged a quark. Our preliminary result is A(s) = 0.82 +/- 0.10(stat.) +/- 0.07(syat.).