2023 Impact factor 4.2
Particles and Fields
Eur. Phys. J. C 17, 263-267
DOI 10.1007/s100520000493

$\Lambda$ and $\bar{\Lambda}$ polarization from deep inelastic muon scattering

The E665 Collaboration

M.R. Adams6 - et al.

6 University of Illinois, Chicago, IL 60680, USA

Received: 5 June 2000 / Published online: 8 September 2000 - © Springer-Verlag 2000

We report results of the first measurements of $\Lambda$ and $\bar{\Lambda}$ polarization produced in deep inelastic polarized muon scattering on the nucleon. The results are consistent with an expected trend towards positive polarization with increasing $x_{\rm F}$. The polarizations of $\Lambda$ and $\bar{\Lambda}$ appear to have opposite signs. A large negative polarization for $\Lambda$ at low positive $x_{\rm F}$ is observed and is not explained by existing models. A possible interpretation is presented.

Copyright Società Italiana di Fisica, Springer-Verlag 2000