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

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

1995-03-15

arxiv.org/abs/hep-ph/9503333v1

Phys.Lett.B356:113-117,1995

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTeX file, 4 figures appended as uuencoded, compressed PostScript file

Scientific paper

10.1016/0370-2693(95)00789-N

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 revealed by polarized deep--inelastic scattering experiments. In particular, models with {\it negatively} polarized $\bar{s}s$ pairs in the proton wave function predict $D_{nn}<0$, whereas models with {\it positively} polarized gluons would predict $D_{nn}>0$.

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