Gluon Virtuality and Heavy Sea Quark Contributions to the Spin-Dependent g_1 Structure Function

Abstract

We analyze the quark mass dependence of photon gluon fusion in polarized deep inelastic scattering for both the intrinsic and extrinsic gluon distributions of the nucleon. We calculate the effective number of flavors for each of the heavy and light quark photon gluon fusion contributions to the first moment of the spin-dependent structure function $g_1(x)$.

LaTex, 19 pages

References in corpus (13)

• Measurements of the Proton and Deuteron Spin Structure Functions g1 and g2
• Precision Determination of the Neutron Spin Structure Function g1n
• Measurement of the Neutron Spin Structure Function $g_1^n$ with a Polarized ^3He Target
• Determination of the Bjorken Sum and Strong Coupling from Polarized Structure Functions
• Optimal Renormalization Scale and Scheme for Exclusive Processes
• Chiral Constituent quarks and their role in quark distribution functions of nucleon and pion
• Next-to-Leading Order Analysis of Inclusive and Semi-inclusive Polarized Data
• Scheme Dependence in Polarized Deep Inelastic Scattering
• An Analytic Extension of the $\overline{MS}$ Renormalizaton Scheme
• The Spin Structure of a Polarized Photon
• x-Dependent Polarized Parton Distributions
• A polarised QCD condensate: nu p elastic scattering as a probe of U_A(1) dynamics
• Polarization Asymmetry Zero in Heavy Quark Photoproduction and Leptoproduction Cross Sections

Cited by in corpus (9)

• The Spin Structure of the Proton
• Heavy-quark axial charges to non-leading order
• Transverse Momentum in Semi-Inclusive Polarized Deep Inelastic Scattering and the Spin-Flavor Structure of the Proton
• Gluon polarization in the proton
• Towards an understanding of nucleon spin structure: from hard to soft scales
• Hadron Spin Dynamics
• Neutrino proton elastic scattering and the spin structure of the proton
• Classical sum rules and spin correlations in photoabsorption and photoproduction processes
• Scheme Independence of $g_1^p(x,Q^2)$