arXiv.org > nucl-ex > arXiv:2001.07230
Nuclear Experiment
arXiv:2001.07230 (nucl-ex)
[Submitted on 20 Jan 2020 (v1), last revised 17 Jun 2020 (this version, v3)]
Title:Probing few-body nuclear dynamics via 3H and 3He (e,e'p)pn cross-section measurements
Authors:R. Cruz-Torres, D. Nguyen, F. Hauenstein, A. Schmidt, S. Li, D. Abrams, H. Albataineh, S. Alsalmi, D. Androic, K. Aniol, W. Armstrong, J. Arrington, H. Atac, T. Averett, C. Ayerbe Gayoso, X. Bai, J. Bane, S. Barcus, A. Beck, V. Bellini, F. Benmokhtar, H. Bhatt, D. Bhetuwal, D. Biswas, D. Blyth, W. Boeglin, D. Bulumulla, A. Camsonne, J. Castellanos, J-P. Chen, E. O. Cohen, S. Covrig, K. Craycraft, B. Dongwi, M. Duer, B. Duran, D. Dutta, E. Fuchey, C. Gal, T. N. Gautam, S. Gilad, K. Gnanvo, T. Gogami, J. Golak, J. Gomez, C. Gu, A. Habarakada T. Hague, O. Hansen, M. Hattawy, O. Hen, D. W. Higinbotham, E. Hughes, C. Hyde, H. Ibrahim, S. Jian, S. Joosten, H. Kamada, A. Karki, B. Karki, A. T. Katramatou, C. Keppel, M. Khachatryan, V. Khachatryan, A. Khanal, D. King, P. King, I. Korover, T. Kutz, N. Lashley-Colthirst, G. Laskaris, W. Li, H. Liu, N. Liyanage, P. Markowitz, R. E. McClellan, D. Meekins, S. Mey-Tal Beck Z-E. Meziani, R. Michaels, M. Mihovilovic, V. Nelyubin, N. Nuruzzaman, M. Nycz, R. Obrecht, M. Olson, L. Ou, V. Owen, B. Pandey, V. Pandey, A. Papadopoulou, S. Park, M. Patsyuk, S. Paul, G. G. Petratos, E. Piasetzky, R. Pomatsalyuk, S. Premathilake, A. J. R. Puckett, V. Punjabi, R. Ransome, M. N. H. Rashad
, P. E. Reimer, S. Riordan, J. Roche, M. Sargsian, N. Santiesteban, B. Sawatzky, E. P. Segarra, B. Schmookler, A. Shahinyan, S. Sirca, R. Skibinski, N. Sparveris, T. Su, R. Suleiman, H. Szumila-Vance, A. S. Tadepalli, L. Tang, W. Tireman, K. Topolnicki, F. Tortorici, G. Urciuoli, L.B. Weinstein, H. Witala, B. Wojtsekhowski, S. Wood, Z. H. Ye, Z. Y. Ye, J. Zhang
et al. (28 additional authors not shown)
Abstract: We report the first measurement of the \eep three-body breakup reaction cross sections in helium-3 ($^3$He) and tritium ($^3$H) at large momentum transfer ($\langle Q^2 \rangle \approx 1.9$ (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 $40 \le p_{miss} \le 500$ 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 $\pm20\%$, is observed between data and calculations for the full $p_{miss}$ range for $^3$H and for $100 \le p_{miss} \le 350$ 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.
Comments: Accepted for publication in PRL. 8 pages, 3 figures, and online supplementary materials
Subjects: Nuclear Experiment (nucl-ex); Nuclear Theory (nucl-th)
Journal reference: Phys. Rev. Lett. 124, 212501 (2020)
Cite as: arXiv:2001.07230 [nucl-ex]
(or arXiv:2001.07230v3 [nucl-ex] for this version)
From: Or Hen [view email]
[v1] Mon, 20 Jan 2020 19:41:11 UTC (451 KB)
[v2] Sun, 3 May 2020 14:52:32 UTC (426 KB)
[v3] Wed, 17 Jun 2020 18:11:58 UTC (426 KB)
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