THE PROTON SPIN PUZZLE AND DEPOLARIZATION IN $\bar{p}p\to \bar{\Lambda }\Lambda$

M. Alberg, J. Ellis, D. Kharzeev

We point out that the measurement of target spin depolarization $D_{nn}$ in the $\bar{p}p\to \bar{\Lambda }\Lambda$ reaction may test dynamical mechanisms invoked to explain the proton spin puzzle…