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Yero, C; Abrams, D; Ahmed, Z; Ahmidouch, A; Aljawrneh, B; Alsalmi, S; Ambrose, R; Armstrong, W; Asaturyan, A; Assumin-Gyimah, K; Ayerbe Gayoso, C; Bandari, A; Bane, J; Basnet, S; Berdnikov, V V; Bericic, J; Bhatt, H; Bhetuwal, D; Biswas, D; Boeglin, W U; Bosted, P; Brash, E; Bukhari, M H S; Chen, H; Chen, J P; Chen, M; Christy, M E; Covrig, S; Craycraft, K; Danagoulian, S; Day, D; Diefenthaler, M; Dlamini, M; Dunne, J; Duran, B; Dutta, D; Ent, R; Evans, R; Fenker, H; Fomin, N; Fuchey, E; Gaskell, D; Gautam, T N; Gonzalez, F A; Hansen, J O; Hauenstein, F; Hernandez, A V; Horn, T; Huber, G M; Jones, M K; Joosten, S; Kabir, M L; Karki, A; Keppel, C E; Khanal, A; King, P; Kinney, E; Lashley-Colthirst, N; Li, S; Li, W B; Liyanage, A H; Mack, D J; Malace, S P; Matter, J; Meekins, D; Michaels, R; Mkrtchyan, A; Mkrtchyan, H; Nazeer, S J; Nanda, S; Niculescu, G; Niculescu, M; Nguyen, D; Nuruzzaman, N; Pandey, B; Park, S; Perdrisat, C F; Pooser, E; Rehfuss, M; Reinhold, J; Sawatzky, B; Smith, G R; Sun, A; Szumila-Vance, H; Tadevosyan, V; Wood, S A; Zhang, J
Physical review letters, 2020-Dec-31, Letnik: 125, Številka: 26Journal Article
We measure ^{2}H(e,e^{'}p)n cross sections at 4-momentum transfers of Q^{2}=4.5±0.5 (GeV/c)^{2} over a range of neutron recoil momenta p_{r}, reaching up to ∼1.0 GeV/c. We obtain data at fixed neutron recoil angles θ_{nq}=35°, 45°, and 75° with respect to the 3-momentum transfer qover →. The new data agree well with previous data, which reached p_{r}∼500 MeV/c. At θ_{nq}=35° and 45°, final state interactions, meson exchange currents, and isobar currents are suppressed and the plane wave impulse approximation provides the dominant cross section contribution. We compare the new data to recent theoretical calculations, where we observe a significant discrepancy for recoil momenta p_{r}>700 MeV/c.
