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arXiv · nucl-ex/0201011

The $^3$He(e, e$'$d)p Reaction in q$ω$-constant Kinematics

Abstract

The cross section for the $^3$He(e, e$'$d)p reaction has been measured as a function of the missing momentum $p_m$ in q$ω$ -constant kinematics at beam energies of 370 and 576 MeV for values of the three-momentum transfer $q$ of 412, 504 and 604 \mevc. The L(+TT), T and LT structure functions have been separated for $q$ = 412 and 504 \mevc. The data are compared to three-body Faddeev calculations, including meson-exchange currents (MEC), and to calculations based on a covariant diagrammatic expansion. The influence of final-state interactions and meson-exchange currents is discussed. The $p_m$-dependence of the data is reasonably well described by all calculations. However, the most advanced Faddeev calculations, which employ the AV18 nucleon-nucleon interaction and include MEC, overestimate the measured cross sections, especially the longitudinal part, and at the larger values of $q$. The diagrammatic approach gives a fair description of the cross section, but under(over)estimates the longitudinal (transverse) structure function.

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C. M. Spaltro, Th. S. Bauer, H. P. Blok, T. Botto, E. Cisbani, R. De Leo, G. E. Dodge, R. Ent, S. Frullani, F. Garibaldi, W. Gloeckle, J. Golak, M. N. Harakeh, M. Iodice, E. Jans, H. Kamada, W. J. Kasdorp, C. Kormanyos, L. Lapikas, A. Misiejuk, S. I. Nagorny, G. J. Nooren, C. J. G. Onderwater, R. Perrino, M. van Sambeek, R. Skibinski, R. Starink, G. van der Steenhoven, J. Tjon, M. A. van Uden, G. M. Urciuoli, H. de Vries, H. Witala, M. Yeomans. 2002-03-08. The $^3$He(e, e$'$d)p Reaction in q$ω$-constant Kinematics. https://doi.org/10.1016/s0375-9474(02)00861-8

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