Probing Few-Body Nuclear Dynamics via H3 and He3 (e,e'p)pn Cross-Section Measurements

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, E. O.; Covrig, S.; Craycraft, K.; Dongwi, B.; Duer, M.; Duran, B.; Dutta, D.; Fuchey, E.; Gal, C.; Gautam, T. N.; Gilad, S.; Gnanvo, K.; Gogami, T.; Golak, J.; Gomez, J.; Gu, C.; Habarakada, A.; Hague, T.; Hansen, O.; Hattawy, M.; Hen, O.; Higinbotham, D. W.; Hughes, E.; Hyde, C.; Ibrahim, H.; Jian, S.; Joosten, S.; Kamada, H.; Karki, A.; Karki, B.; Katramatou, A. T.; 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, R. E.; 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, G. G.; Piasetzky, E.; Pomatsalyuk, R.; Premathilake, S.; Puckett, A. J.  R.; Punjabi, V.; Ransome, R.; Rashad, M. N.  H.; Reimer, P. E.; Riordan, S.; Roche, J.; Sargsian, M.; Santiesteban, N.; Sawatzky, B.; Segarra, E. P.; Schmookler, B.; Shahinyan, A.; Širca, S.; Skibiński, R.; Sparveris, N.; Su, T.; Suleiman, R.; Szumila-Vance, H.; Tadepalli, A. S.; Tang, L.; Tireman, W.; Topolnicki, K.; Tortorici, F.; Urciuoli, G.; Weinstein, L. B.; Witała, H.; Wojtsekhowski, B.; Wood, S.; Ye, Z. H.; Ye, Z. Y.; Zhang, J.

doi:10.1103/PhysRevLett.124.212501

Title: Probing Few-Body Nuclear Dynamics via ${}^{3}H$ and ${}^{3}{He}$ $(e, e^{'} p) pn$ Cross-Section Measurements

Journal Article · 26 May 2020 · Physical Review Letters

DOI: https://doi.org/10.1103/PhysRevLett.124.212501 · OSTI ID:1630898

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. more »

Here, we report the first measurement of the (e, e' p) three-body breakup reaction cross sections in helium-3 (³He) and tritium (³H) at large momentum transfer ($$\langle{Q^2}\rangle$$ ≈ 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 ³H and for 100 ≤ p_miss ≤ 350 MeV/c for ³He. 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 ³He plus ³H, which is largely insensitive to SCX, is described by calculations to within the accuracy of the data over the entire pmiss 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.

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Research Organization:: Argonne National Laboratory (ANL), Argonne, IL (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Mississippi State Univ., Mississippi State, MS (United States); Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)

Sponsoring Organization:: Israel Science Foundation; National Science Foundation (NSF); Pazi Foundation; Polish National Science Centre; USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Office of Science (SC), Nuclear Physics (NP)

Contributing Organization:: Jefferson Lab Hall A Tritium Collaboration

Grant/Contract Number:: AC02-05CH11231; AC02-06CH11357; AC05-06OR23177; FG02-07ER41528; SC0013615; SC0016577

OSTI ID:: 1630898

Report Number(s):: DOE/OR/23177--4905; JLAB-PHY--20-3137; arXiv:2001.07230

Journal Information:: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 21 Vol. 124; ISSN 0031-9007; ISSN PRLTAO

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Title: Probing Few-Body Nuclear Dynamics via ${}^{3}H$ and ${}^{3}{He}$ $(e, e^{'} p) pn$ Cross-Section Measurements