Polarization-transfer measurement to a large-virtuality bound proton in   the deuteron
  Possible differences between free and bound protons may be observed in the ratio of polarization-transfer components, $P'_x/P'_z$. We report the measurement of $P'_x/P'_z$, in the $^2\textrm{H}(\vec{e},e^{\prime}\vec{p})n$ reaction at low and high missing momenta. Observed increasing deviation of $P'_x/P'_z$ from that of a free proton as a function of the virtuality, similar to that observed in \hefour, indicates that the effect in nuclei is due to the virtuality of the knock-out proton and not due to the average nuclear density. The measured differences from calculations assuming free-proton form factors ($\sim10\%$), may indicate in-medium modifications. 
A1 Collaboration: I. Yaron (1), D. Izraeli (1), P. Achenbach (2), H.   Arenh\"ovel (2), J. Beri\v{c}i\v{c}(3), R. B\"ohm (2)...
nucl-ex