Spin-Dependent Structure Functions of the Photon

Details Spin-Dependent Structure Functions of the Photon Spin-Dependent Structure Functions of the Photon

2001-02-02

arxiv.org/abs/hep-ph/0102014v1

Phys.Lett. B503 (2001) 285-291

Physics

High Energy Physics

High Energy Physics - Phenomenology

15 pages, LaTeX, 4 figures

Scientific paper

10.1016/S0370-2693(01)00234-9

The implications of the positivity constraint on the presently unknown polarized structure function of the photon, $g_1^{\gamma}(x,Q^2)$, are studied in detail. In particular the non-trivial consequences of this constraint, $|g_1^{\gamma}(x,Q^2)|\leq F_1^{\gamma}(x,Q^2)$, in the next-to-leading order analysis of $g_1^{\gamma}$ are pointed out by employing appropriate (DIS) factorization schemes related to $g_1^{\gamma}$ and $F_1^{\gamma}$ (rather than to $F_2^{\gamma}$).

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