Study of diquark fragmentation into. lambda. and Y/sup +/ in. nu. n and. nu. p interactions

We apply a new method to determine the probability of the uu diquark from ..nu..p interactions fragmenting as independent quarks. In particular, by assuming that all ..lambda..'s which do not come from Y/sup asterisk+/, by assuming that all ..lambda..'s which do not come from Y/sup asterisk+/, N/sup asterisk+/, or charmed baryons must come from independent fragmentation, we show this probability to be about 50%. We also provide information from ..lambda..'s, and from this determine the probability of capturing a strange quark from the sea in the target region to be tau/sub s/ = 0.051 +- 0.013, about half the value found in the current region, ..gamma../sub s/ = 0.12 +- 0.02. Overall ..lambda.. production rates in ..nu..n and ..nu..p reactions are (7.0 +- 0.8)% and (7.0 +- 1.2)%, respectively. When cuts of W>4 GeV and x/sub B/>0.2 are made on the data.