Hyperon polarization in semi-inclusive deeply inelastic lepton-nucleon scattering at high energy

Abstract

We calculate the polarizations for different octet hyperons produced in the current fragmentation regions of the deeply inelastic lepton-nucleon scatterings ${\mu }^{-}N\to {\mu }^{-}HX$ and ${\nu }_{\mu }N\to {\mu }^{-}HX$ at high energy using different models for spin transfer in fragmentation processes. The results show that measurements of those hyperon polarizations should provide useful information to distinguish between different models in particular the SU(6) and the DIS pictures used frequently in the literature. We found, in particular, that measuring the polarization of ${\Sigma }^{+}$ produced in these processes can give a better test to the validity of the different spin transfer models.

30 pages, 13 figures

Cited by in corpus (18)

• Tensor polarization dependent fragmentation functions and e+e-\to V πX at high energies
• Leading and higher twist contributions in semi-inclusive e+e- annihilation at high energies
• Anti-Lambda polarization in high energy pp collisions with polarized beam
• Isospin Symmetry of Fragmentation Functions
• Longitudinal Polarization of Lambda and anti-Lambda Hyperons in Lepton-Nucleon Deep-Inelastic Scattering
• Energy dependence of hadron polarization in $e^{+}{e}^{-}\to hX$ at high energies
• Hyperon polarization in ν_μcharged current interaction at the NOMAD energies
• The Spin Alignment of Vector Mesons in High Energy pp Collisions
• Longitudinal polarization of hyperon and anti-hyperon in semi-inclusive deep-inelastic scattering
• Anti-Hyperon polarization in high energy pp collisions with polarized beams
• Probing gluon helicity distribution and quark transversity through hyperon polarization in singly polarized pp collisions
• Spin alignment of the high $p_T$ vector mesons in polarized pp collisions at high energies
• Spin transfer and polarization of antihyperons in lepton induced reactions
• Spin alignments of vector mesons in deeply inelastic lepton-nucleon scattering
• Transverse ${\Lambda }^0$ polarization in inclusive quasi-real photoproduction at the current fragmentation
• Hyperon polarization in e^-p --> e^-HK with polarized electron beams
• The longitudinal polarization of hyperons in the forward region in polarized $pp$ collisions
• Spin Effects in High Energy Fragmentation Processes