Lambda polarization from unpolarized quark fragmentation
arXiv:hep-ph/0008186 · doi:10.1103/PhysRevD.63.054029
Abstract
The longstanding problem of explaining the observed polarization of Lambda hyperons inclusively produced in the high energy collisions of unpolarized hadrons is tackled by considering spin and k_T dependent quark fragmentation functions. The data on Lambda's and Lambda-bar's produced in p-N processes are used to determine simple phenomenological expressions for these new "polarizing fragmentation functions", which describe the experiments remarkably well.
LaTeX, 21+1 pages, 6 eps figures, uses epsfig.sty