The Flavor and Spin Structure of Hyperons from Quark Fragmentation

Abstract

We systematically study the hadron longitudinal polarizations of the octet baryons at large $z$ from quark fragmentations in $e^{+}{e}^{-}$-annihilation, polarized charged lepton deep inelastic scattering (DIS) process, and neutrino (antineutrino) DIS process, based on predictions of quark distributions for the octet baryons in the SU(6) quark-spectator-diquark model and a perturbative QCD based counting rule analysis. We show that the $e^{+}{e}^{-}$-annihilation and polarized charged lepton DIS process are able to distinguish between the two different predictions of the hyperon polarizations. We also find that the neutrino/antineutrino DIS process is ideal in order to study both the valence content of the hyperons and the antiquark to hyperon (quark to anti-hyperon) fragmentations, which might be related to the sea content of hyperons.

32 latex pages, 11 figures, a misprint in Table 1 corrected, reference updated, to appear in PRD

References in corpus (9)

• Melosh rotation: source of the proton's missing spin
• Quark Structure of $\Lambda$ from $\Lambda$-Polarization in Z Decays
• Flavor and Spin Structure of $\Lambda$-Baryon at Large x
• $\Lambda$, $\bar{\Lambda }$ Polarization and Spin Transfer in Lepton Deep-Inelastic Scattering
• Spin structure and longitudinal polarization of hyperon in e+e- annihilation at high energies
• Expected Polarization of $\Lambda$ particles produced in deep inelastic polarized lepton scattering
• Lambda Polarization in Polarized Proton-Proton Collisions at RHIC
• Lambda and Lambda-bar polarization in polarized DIS
• The Quark-Antiquark Asymmetry of the Nucleon Sea from $\Lambda$ and $\bar{\Lambda }$ Fragmentation

Cited by in corpus (46)

• Pretzelosity $h_{1T}^{\perp }$ and quark orbital angular momentum
• Nucleon Transversity Distribution from Azimuthal Spin Asymmetry in Pion Electroproduction
• Measurement of the Antilambda Polarization in nu_mu Charged Current Interactions in the NOMAD Experiment
• 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
• Helicity and Transversity Distribution of Nucleon and $\Lambda$-Hyperon from $\Lambda$ Fragmentation
• Proposal for measuring new transverse momentum dependent parton distributions $g_{1T}$ and $h_{1L}^{\perp }$ through semi-inclusive deep inelastic scattering
• A lattice study of the spin structure of the Lambda hyperon
• Spin alignment of vector meson in e+e- annihilation at Z0 pole
• Quark Distributions of Octet Baryons from SU(3) Symmetry
• Anti-Lambda polarization in high energy pp collisions with polarized beam
• Hyperon polarization in semi-inclusive deeply inelastic lepton-nucleon scattering at high energy
• Statistical approach for unpolarized fragmentation functions for the octet baryons
• 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
• Transversity from two pion interference fragmentation
• The Spin Alignment of Vector Mesons in High Energy pp Collisions
• Next-to-leading order QCD evolution of transversity fragmentation functions
• Hyperon polarization in ν_μcharged current interaction at the NOMAD energies
• Spin Transfers for Baryon Production in Polarized pp Collisions at RHIC-BNL
• Several Topics on Transverse Momentum-Dependent Fragmentation Functions
• Longitudinal polarization of hyperon and anti-hyperon in semi-inclusive deep-inelastic scattering
• Up and Down Quark Contributions to Spin Content of Lambda from Fragmentation
• Quark to $\Lambda$-hyperon spin transfers in the current-fragmentation region
• Anti-Hyperon polarization in high energy pp collisions with polarized beams
• Probing pretzelosity $h_{1T}^{\perp }$ via the polarized proton-antiproton Drell-Yan process
• Nucleon strange $s\bar{s}$ asymmetry to the $\Lambda /\bar{\Lambda }$ fragmentation
• Generalized form factors of the nucleon in a light-cone spectator-diquark model
• Single Target-Spin Asymmetry in Semi-Inclusive Deep Inelastic Scattering on Transversely Polarized Nucleon Target
• $q\to \Lambda$ Fragmentation Function and Nucleon Transversity Distribution in a Diquark Model
• Parity-violating asymmetry of $W$ bosons produced in $p$-$p$ collisions
• Spin transfer and polarization of antihyperons in lepton induced reactions
• The $\sin 2\varphi$ azimuthal asymmetry in single longitudinally polarized $\pi N$ Drell-Yan process
• Phenomenological Relation between Distribution and Fragmentation Functions
• Single spin asymmetry in $\pi p$ Drell-Yan process
• Collins effect in semi-inclusive deep inelastic scattering process with a ${}^3$He target
• Nucleon strangeness polarization from $\Lambda /\bar{\Lambda }$ hyperon production in polarized proton-proton collision at RHIC
• Three-dimensional parton distribution functions $g_{1T}$ and $h_{1L}^{\perp }$ in the polarized proton-antiproton Drell-Yan process
• Kinked tracks from ${\Sigma }^{+}$ baryons as a probe of light quark polarizations
• Ratio of $\bar{\Lambda }/\Lambda$ in Semi-inclusive Electroproduction
• Boer-Mulders function of the pion and pretzelosity distribution of the proton in the polarized pion-proton Drell-Yan process at COMPASS
• Evidence for SU(3) symmetry breaking from hyperon production
• The longitudinal polarization of hyperons in the forward region in polarized $pp$ collisions
• Octet Quark Contents from SU(3) Flavor Symmetry
• Particle-Antiparticle Asymmetries of $\Lambda$ Production in Hadron-Nucleon Collisions
• Mass Suppression in Octet Baryon Production