The ²H(e,ep)n cross section was measured in Hall A of the Thomas Jefferson National Accelerator Facility near the top of the quasielastic peak (x_Bj = 0.964) at a four-momentum transfer squared, Q² = 0.665 (GeV/c)² (w= 0.368GeV, W = 2.057GeV), and for recoil momenta up to 550MeV/c. The measured cross section deviates by 1-2 sigma from a state-of-the-art calculation at low recoil momenta. At high recoil momenta the cross section is well described by the same calculation; however, in this region, final-state interactions and interaction currents are predicted to be large, and alternative choices of nucleon-nucleon potential and nucleon current operator may result in significant spread in the calculations.

Authors: P. E. Ulmer, K. A. Aniol, H. Arenhövel, J.-P. Chen, E. Chudakov, D. Crovelli, J. M. Finn, K. G. Fissum, O. Gayou J. Gomez, J.-O. Hansen, C. W. de Jager, S. Jeschonnek, M. K. Jones, M. Kuss, J. J. LeRose, M. Liang, R. A. Lindgren, S. Malov, D. Meekins, R. Michaels, J. Mitchell, C. F. Perdrisat, V. Punjabi, R. Roché, F. Sabatie, A. Saha, R. Suleiman, L. Todor, B. B. Wojtsekhowski

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