Measurement of the Electron-Deuteron Elastic-Scattering Cross Section in the Range0.8<~q2<~6GeV2

We report preliminary results of elastic $e-d$ scattering at large momentum transfer performed at the Stanford Linear Accelerator Center with use of two high-resolution spectrometers in coincidence. Our results are in sharp disagreement with the meson-exchange calculations, they are in rough agreement with the nonrelativistic potential models, and they are in agreement with the predictions of the quark dimensional-scaling model which pictures the deuteron as a bound state of six quarks at large momentum transfer.