Spin-Dependent Structure Functions of the Photon

Abstract

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, $|g_1^{\gamma }(x,Q^2)|\le F_1^{\gamma }(x,Q^2)$, 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 $F_2^{\gamma }$).

15 pages, LaTeX, 4 figures

Cited by in corpus (24)

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• Leading-Order Determination of the Gluon Polarization from high-$p_T$ Hadron Electroproduction
• Charmonium production in polarized high-energy collisions
• Longitudinally Polarized Photoproduction of Inclusive Hadrons at Fixed-Target Experiments
• Longitudinally Polarized Photoproduction of Inclusive Hadrons Beyond the Leading Order
• The Virtual Photon Structure to the Next-to-next-to-leading Order in QCD
• Polarized Virtual Photon Structure Function $g_2^{\gamma }$ and Twist-3 Effects in QCD
• The Polarised Photon $g_1^{\gamma }$ Sum Rule at the Linear Collider and High Luminosity B Factories
• Positivity constraints on photon structure functions
• The $alphaalph{a}_s^2$ corrections to the first moment of the polarized virtual photon structure function $g_1^{g}amma(x,Q^2,P^2)$
• Virtual photon structure functions and positivity constraints
• Target Mass Effects in Polarized Virtual Photon Structure Functions
• Target Mass Corrections for the Virtual Photon Structure Functions to the Next-to-next-to-leading Order in QCD
• Transition from real to virtual polarized photon structures
• Heavy quark effects on parton distribution functions in the unpolarized virtual photon up to the next-to-leading order in QCD
• Resummation of large logarithms in the heavy quark effects on the parton distributions inside the virtual photon
• The real photon structure functions in massive parton model in NLO
• Squark Contributions to Photon Structure Functions and Positivity Constraints
• Mass effects in the polarized virtual photon structure
• Parton distributions in the virtual photon target up to NNLO in QCD
• The polarized photon structure function $g_1^{\gamma }(x,Q^2)$ in massive parton model in NLO
• Two-Photon Processes and Photon Structure
• Polarized Photon Structure: $g_1^{\gamma }$ and $g_2^{\gamma }$
• Polarized Structure Functions and Two-Photon Physics at Super-B