arXiv:hep-ph/0406320·v2·High Energy Physics — Phenomenology
Determination of quark-antiquark component of the photon wave function for u, d, s quarks
A.V. Anisovich · V.V. Anisovich · L.G. Dakhno · V.A. Nikonov · A.V. Sarantsev
Abstract
Based on the data for the transitions pi0, eta, eta' -> gamma gamma^*(Q^2) and reactions of the e^+ e^- -annihilations, e^+ e^- -> rho0, omega, phi and e^+ e^--> hadrons at 1<E_{e^+e^-}<3.7 GeV, we determine the light-quark components of the photon wave function gamma^*(Q^2) -> q anti-q (q= u, d, s) for the region 0< Q^2 <1 (GeV/c)^2.
Comments: 17 pages, some typos corrected