The Proton Spin Puzzle and $Λ$ Polarization in Deep--Inelastic Scattering

Details The Proton Spin Puzzle and $Λ$ Polarization in Deep--Inelastic Scattering The Proton Spin Puzzle and $Λ$ Polarization in Deep--Inelastic Scattering

1995-06-09

arxiv.org/abs/hep-ph/9506280v3

Z.Phys.C69:467-474,1996

Physics

High Energy Physics

High Energy Physics - Phenomenology

16 pages, LaTeX, 9 eps figures uuencoded in separate file, typographical errors corrected

Scientific paper

10.1007/s002880050048

We point out that measurements of longitudinal $\Lambda$ polarization in the target fragmentation region of deep--inelastic $\nu \,N$ and $\mu \,N$ or $e \, N$ scattering may test dynamical mechanisms invoked to explain the proton spin puzzle. A previously-proposed model for polarized $\bar s s$ pairs in the proton wave function reproduces successfully the negative $\Lambda$ polarization found in the WA59 $\bar \nu \, N$ experiment, and makes predictions that could be tested in future $\mu \, N$ and $e \, N$ experiments.

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