Measurements of transverse electron scattering from the deuteron in the threshold region at high momentum transfers

M. Frodyma, R. G. Arnold, D. Benton, P. E. Bosted, L. Clogher, G. Dechambrier, A. T. Katramatou, J. Lambert, A. Lung, G. G. Petratos, A. Rahbar, S. E. Rock, Z. M. Szalata, B. Debebe, R. S. Hicks, A. Hotta, G. A. Peterson, R. A. Gearhart, J. Alster, J. LichtenstadtF. Dietrich, K. Van Bibber

Research output: Contribution to journalArticlepeer-review

Abstract

Deuteron electrodisintegration cross sections near 180°have been measured near breakup threshold for the four-momentum transfer squared Q2 range 1.21-2.76 (GeV/c)2. Evidence for a change of slope in the cross section near Q2=1 (GeV/c)2 has been obtained. The data are compared to nonrelativistic calculations, which predict a strong influence of meson-exchange currents. The data are also compared to a hybrid quark-hadron model. None of these calculations agrees with the data over the entire measured range of Q2. The ratio of inelastic structure functions W1(Q2,Enp)/W2(Q2,Enp) is extracted from the present results and previous forward angle data. No prediction is in good agreement with the deduced ratios at small relative energy Enp.

Original languageEnglish
Pages (from-to)1599-1614
Number of pages16
JournalPhysical Review C - Nuclear Physics
Volume47
Issue number4
DOIs
StatePublished - 1993

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