THE DEUTERON ELECTRODISINTEGRATION NEAR-THRESHOLD IN THE LIGHT-FRONT DYNAMICS

The deuteron electrodesintegration near threshold is a process which is known to be quite sensitive to-various physical inputs such as NN wave functions, mesonic exchange currents, isobar configurations. For the same reason, it is expected to be sensitive to relativistic effects. The impulse approximation contribution is considered here in the relativistic, explicitly covariant, light-front dynamics and compared to the non-relativistic result. Only the S-1(0) final state, which largely dominates the cross section, is retained. It is found that relativistic effects required by covariance compare to the uncertainty on NN wave functions and are not as large as effects evidenced by similar studies for the deuteron elastic form factors.