Spin Structure Function $g_2$ and Twist-3 Operators in QCD

Details Spin Structure Function $g_2$ and Twist-3 Operators in QCD Spin Structure Function $g_2$ and Twist-3 Operators in QCD

1994-08-23

arxiv.org/abs/hep-ph/9408354v1

Phys.Lett. B344 (1995) 348-354

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTeX, 11 pages, KUCP-71; HUPD-9411

Scientific paper

10.1016/0370-2693(94)01550-V

We investigate the spin structure function $g_2 (x, Q^2 )$ in the framework of the operator product expansion and the renormalization group. The twist-3 operators appearing in QCD are examined and their relations are studied. It is noted that operators proportional to equation of motion appear in the operator mixing through renormalization, which can be studied from the relevant Green's functions. We also note that the coefficient functions can be properly fixed after the choice of independent operators.

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