  The polarizations of Lambda and anti-Lambda are thought to retain memories of
the spins of their parent s quarks and antiquarks, and are readily measurable
via the angular distributions of their daughter protons and antiprotons.
Correlations between the spins of Lambda and anti-Lambda produced at low
relative momenta may therefore be used to probe the spin states of s anti-s
pairs produced during hadronization. We consider the possibilities that they
are produced in a 3P_0 state, as might result from fluctuations in the
magnitude of <anti-s s>, a 1S_0 state, as might result from chiral
fluctuations, or a 3S_1 or other spin state, as might result from production by
a quark-antiquark or gluon pair. We provide templates for the p anti-p angular
correlations that would be expected in each of these cases, and discuss how
they might be used to distinguish s anti-s production mechanisms in pp and
heavy-ion collisions.
