Quark distributions and gluon contents of eta and etaprime

Abstract

Using QCD sum rule, we calculate valance quark distribution functions of η and of η' in chiral limit. Extrapolating the calculated quark distribution functions at both end regions, their first two moments have been calculated and compared with those of other hadrons.

14 pages, 7 figures

References in corpus (14)

• Update of Parton Distributions at NNLO
• Measurement of the pseudoscalar mixing angle and ${\eta }^{\prime }$ gluonium content with KLOE detector
• The two-gluon components of the eta and eta' mesons to leading-twist accuracy
• Pseudoscalar glueball mass from $\eta$-${\eta }^{\prime }$-$G$ mixing
• Gluonic contribution to $B\to {\eta }^{(\prime )}$ form factors
• U_A(1) anomaly and eta' mass from an infrared singular quark-gluon vertex
• Pseudoscalar Meson Decay Constants and Couplings, the Witten-Veneziano Formula beyond large N_c, and the Topological Susceptibility
• The ${\eta }^{\prime }{g}^{\ast }{g}^{(\ast )}$ Vertex Including the ${\eta }^{\prime }$-Meson Mass
• The gluon content of the $\eta$ and ${\eta }^{\prime }$ mesons and the $\eta \gamma$, ${\eta }^{\prime }\gamma$ electromagnetic transition form factors
• Axial and pseudoscalar current correlators and their couplings to eta and etaprime mesons
• The derivative of the topological susceptibility at zero momentum and an estimate of ${\eta }^{\prime }$ mass in the chiral limit
• Valence quark distributions in nucleon at low $Q^2$ in QCD
• Eta-nucleon coupling constant in QCD with SU(3) symmetry breaking
• Improved ${\eta }^{\prime }$-Meson Distribution Amplitudes from Inclusive ${\rm Y}(1S)\to {\eta }^{\prime }X$ Decay