Abstract
Pursuing the idea that exchange currents should dominate the very large momentum transfer behavior of the deuteron electromagnetic form factors, we evaluate the $\ensuremath{\pi}\ensuremath{\rho}$ and $\ensuremath{\sigma}\ensuremath{\omega}$ exchange contributions. Taking the meson-nucleon coupling constants from one-boson exchange calculations of the $\mathrm{NN}$ force and the photon-meson coupling strengths from a relativistic quark model, we find that the form factors begin to "flatten out" at momentum transfers ${q}^{2}\ensuremath{\gtrsim}50$ ${\mathrm{fm}}^{\ensuremath{-}2}$ and are an order of magnitude greater than the usual impulse prediction at ${q}^{2}\ensuremath{\approx}100$ ${\mathrm{fm}}^{\ensuremath{-}2}$.NUCLEAR STRUCTURE $^{2}\mathrm{H}$; calculated exchange current effects in large momentum transfer electromagnetic form factors.
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