Polarization-transfer measurement to a large-virtuality bound proton in the deuteron
2017
Abstract We report the measurement of the ratio of polarization-transfer components, P x / P z , in the H 2 ( e → , e ′ p → ) n reaction at low and high missing momenta, in search of differences between free and bound
protons. The observed deviation of P x / P z from that of a free
proton, which is similar to that observed in 4 He, indicates that the effect in nuclei is a function of the virtuality of the knock-out
protonand the missing momentum direction, but not the average
nuclear density. There is a general agreement between the data and calculations, which assume free
protonform factors, however, the measurements are consistently about 10% higher.
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