DIS structure functions and the double-spin asymmetry in #rho#"0 electroproduction within a Regge approach

The proton, neutron and deuteron structure functions F_2(x, Q"2) and g_1(x, Q"2), measured at intermediate Q"2, are analyzed within a Regge approach. This analysis serves to fix the parameters of this scheme which are then used to calculate, in a unified Regge approach, the properties of #rho#"0 meson electroproduction on the proton and the deuteron. In this way, the double-spin asymmetry observed at HERMES in #rho#"0 electroproduction on the proton, can be related to the anomalous behavior of the flavor-singlet part of the spin-dependent structure function g_1(x, Q"2) at small x. (orig.)Available from TIB Hannover: RA 2999(02-191) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman