Study of diquark fragmentation intoΛandY*+inνnandνpinteractions
Citations Over TimeTop 17% of 1983 papers
Abstract
We apply a new method to determine the probability of the $\mathrm{uu}$ diquark from $\ensuremath{\nu}p$ interactions fragmenting as independent quarks. In particular, by assuming that all $\ensuremath{\Lambda}'\mathrm{s}$ which do not come from ${Y}^{*+}$, ${N}^{*+}$, or charmed baryons must come from independent fragmentation, we show this probability to be about 50%. We also provide information from $\ensuremath{\nu}n$ interactions on the fragmentation of $\mathrm{ud}$ diquarks into $\ensuremath{\Lambda}'\mathrm{s}$, and from this determine the probability of capturing a strange quark from the sea in the target region to be ${\ensuremath{\tau}}_{s}=0.051\ifmmode\pm\else\textpm\fi{}0.013$, about half the value found in the current region, ${\ensuremath{\gamma}}_{s}=0.12\ifmmode\pm\else\textpm\fi{}0.02$. Overall $\ensuremath{\Lambda}$ production rates in $\ensuremath{\nu}n$ and $\ensuremath{\nu}p$ reactions are (7.0 \ifmmode\pm\else\textpm\fi{} 0.8)% and (7.0 \ifmmode\pm\else\textpm\fi{} 1.2)%, respectively, when cuts of $W>4$ GeV and ${x}_{B}>0.2$ are made on the data.