Asymmetric Quark/Antiquark Hadronization in e+e- Annihilation

Abstract

We point out that the fragmentation of a strange quark into nucleons versus antinucleons is not necessarily identical $D_{p/s}(z,Q^2)\ne D_{\bar{p}/s}(z,Q^2)$, even though the perturbative contributions from gluon splitting and evolution are $p\leftrightarrow \bar{p}$ symmetric. The observation of such asymmetries in the hadronization of strange and other heavy quarks can provide insight into the nonperturbative mechanisms underlying jet fragmentation in QCD.

Latex, 12 pages

References in corpus (5)

• Global QCD Analysis and the CTEQ Parton Distributions
• The Quark/Antiquark Asymmetry of the Nucleon Sea
• Reanalysis of the EMC charm production data with extrinsic and intrinsic charm at NLO
• The Strange Sea Density and Charm Production in Deep Inelastic Charged Current Processes
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Cited by in corpus (29)

• Parton Fragmentation Functions
• Hadronization in semi-inclusive deep-inelastic scattering on nuclei
• Quark Structure of $\Lambda$ from $\Lambda$-Polarization in Z Decays
• Flavor and Spin Structure of $\Lambda$-Baryon at Large x
• The Flavor and Spin Structure of Hyperons from Quark Fragmentation
• Azimuthal Spin Asymmetries of Pion Electroproduction
• Quark Flavor Separation in $\Lambda$-Baryon Fragmentation
• Hadronization in Z0 decay
• Parton Distributions for the Octet and Decuplet Baryons
• Helicity and Transversity Distribution of Nucleon and $\Lambda$-Hyperon from $\Lambda$ Fragmentation
• Strange Magnetic Moment and Isospin Symmetry Breaking
• Quark Distributions of Octet Baryons from SU(3) Symmetry
• Statistical approach for unpolarized fragmentation functions for the octet baryons
• Connection between Distribution and Fragmentation Functions
• Spin Transfers for Baryon Production in Polarized pp Collisions at RHIC-BNL
• Up and Down Quark Contributions to Spin Content of Lambda from Fragmentation
• Flavor and Spin Structure of Octet Baryons at Large x
• Quark to $\Lambda$-hyperon spin transfers in the current-fragmentation region
• Nucleon strange $s\bar{s}$ asymmetry to the $\Lambda /\bar{\Lambda }$ fragmentation
• Phenomenological Relation between Distribution and Fragmentation Functions
• Hyperon Beta-Decay and Axial Charges of the Lambda in view of Strongly Distorted Baryon Wave-Functions
• Nucleon strangeness polarization from $\Lambda /\bar{\Lambda }$ hyperon production in polarized proton-proton collision at RHIC
• Ratio of $\bar{\Lambda }/\Lambda$ in Semi-inclusive Electroproduction
• Evidence for SU(3) symmetry breaking from hyperon production
• Polarization Asymmetry Zero in Heavy Quark Photoproduction and Leptoproduction Cross Sections
• The Quark Distributions of Baryons
• Octet Quark Contents from SU(3) Flavor Symmetry
• Particle-Antiparticle Asymmetries of $\Lambda$ Production in Hadron-Nucleon Collisions
• Mass Suppression in Octet Baryon Production