Spin-dependent structure functions ${\hat{g}}_1$ and ${\hat{g}}_2$ for inclusive spin-half baryon production in electron-positron annihilation

Abstract

Two spin-dependent structure functions ${\hat{g}}_1$ and ${\hat{g}}_2$ for the inclusive spin-half baryon production in electron-positron annihilation are studied in the context of QCD factorization as well as in the naive quark parton model. As a result, it is found that the sum of ${\hat{g}}_1$ and ${\hat{g}}_2$ is related to ${\hat{h}}_1$ and ${\hat{g}}_T$, two quark fragmentation functions defined by Jaffe and Ji. In connection with the measurement of quark fragmentation functions, the possible phenomenological consequences are discussed.

RevTex, four Ps figures, to appear in Phys. Rev. D

References in corpus (2)

• The theory and phenomenology of polarized deep inelastic scattering
• Novel Structure Function for Photon Fragmentation into a $\Lambda$ Hyperon and Transverse $\Lambda$ Polarization in Unpolarized Electron-Positron Annihilation

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