Spin-dependent structure functions $\hat g_1$ and $\hat g_2$ for inclusive spin-half baryon production in electron-positron annihilation

Details Spin-dependent structure functions $\hat g_1$ and $\hat g_2$ for inclusive spin-half baryon production in electron-positron annihilation Spin-dependent structure functions $\hat g_1$ and $\hat g_2$ for inclusive spin-half baryon production in electron-positron annihilation

1995-11-16

arxiv.org/abs/hep-ph/9511325v2

Phys.Rev. D53 (1996) 131-137

Physics

High Energy Physics

High Energy Physics - Phenomenology

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

Scientific paper

10.1103/PhysRevD.53.131

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.

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