학술논문
Probing Few-Body Nuclear Dynamics via ^{3}H and ^{3}He (e,e^{'}p)pn Cross-Section Measurements.
Document Type
article
Author
Cruz-Torres, R; Nguyen, D; Hauenstein, F; Schmidt, A; Li, S; Abrams, D; Albataineh, H; Alsalmi, S; Androic, D; Aniol, K; Armstrong, W; Arrington, J; Atac, H; Averett, T; Ayerbe Gayoso, C; Bai, X; Bane, J; Barcus, S; Beck, A; Bellini, V; Benmokhtar, F; Bhatt, H; Bhetuwal, D; Biswas, D; Blyth, D; Boeglin, W; Bulumulla, D; Camsonne, A; Castellanos, J; Chen, J-P; Cohen, EO; Covrig, S; Craycraft, K; Dongwi, B; Duer, M; Duran, B; Dutta, D; Fuchey, E; Gal, C; Gautam, TN; Gilad, S; Gnanvo, K; Gogami, T; Golak, J; Gomez, J; Gu, C; Habarakada, A; Hague, T; Hansen, O; Hattawy, M; Hen, O; Higinbotham, DW; Hughes, E; Hyde, C; Ibrahim, H; Jian, S; Joosten, S; Kamada, H; Karki, A; Karki, B; Katramatou, AT; Keppel, C; Khachatryan, M; Khachatryan, V; Khanal, A; King, D; King, P; Korover, I; Kutz, T; Lashley-Colthirst, N; Laskaris, G; Li, W; Liu, H; Liyanage, N; Markowitz, P; McClellan, RE; Meekins, D; Mey-Tal Beck, S; Meziani, Z-E; Michaels, R; Mihovilovič, M; Nelyubin, V; Nuruzzaman, N; Nycz, M; Obrecht, R; Olson, M; Ou, L; Owen, V; Pandey, B; Pandey, V; Papadopoulou, A; Park, S; Patsyuk, M; Paul, S; Petratos, GG; Piasetzky, E; Pomatsalyuk, R; Premathilake, S; Puckett, AJR; Punjabi, V
Source
Physical review letters. 124(21)
Subject
Language
Abstract
We report the first measurement of the (e,e^{'}p) three-body breakup reaction cross sections in helium-3 (^{3}He) and tritium (^{3}H) at large momentum transfer [⟨Q^{2}⟩≈1.9 (GeV/c)^{2}] and x_{B}>1 kinematics, where the cross section should be sensitive to quasielastic (QE) scattering from single nucleons. The data cover missing momenta 40≤p_{miss}≤500 MeV/c that, in the QE limit with no rescattering, equals the initial momentum of the probed nucleon. The measured cross sections are compared with state-of-the-art ab initio calculations. Overall good agreement, within ±20%, is observed between data and calculations for the full p_{miss} range for ^{3}H and for 100≤p_{miss}≤350 MeV/c for ^{3}He. Including the effects of rescattering of the outgoing nucleon improves agreement with the data at p_{miss}>250 MeV/c and suggests contributions from charge-exchange (SCX) rescattering. The isoscalar sum of ^{3}He plus ^{3}H, which is largely insensitive to SCX, is described by calculations to within the accuracy of the data over the entire p_{miss} range. This validates current models of the ground state of the three-nucleon system up to very high initial nucleon momenta of 500 MeV/c.