I. Akushevich et P. Kuzhir, QED radiative correction to spin-density matrix elements in exclusive vector meson production, PHYS LETT B, 474(3-4), 2000, pp. 411-415
QED radiative effects are considered in the case of the measurement of spin
-density matrix elements of diffractive rho-meson electroproduction. Large
radiative correction for r(00)(5) is found in the kinematics of collider ex
periments at HERA. (C) 2000 Published by Elsevier Science B.V. All rights r
eserved.