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Title: Probing for high-momentum protons in 4He via the 4He$(e,e'p)X $ reactions

Journal Article · · Physical Review. C
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Here, experimental cross sections for the $^4He(e,e'p)X$ reactions in the missing energy range from 0.017 to 0.022 GeV and up to a missing momentum of 0.632 GeV/$$c$$ at $$x_B=1.24$$ and $Q^2$=2(GeV/$$c$$)$^2$ are reported. The data are compared to relativistic distorted-wave impulse approximation calculations for the $^4He(e,e'p)^3H$ channel. Significantly more events are observed for $$p_{m}$$$$≥$0.45 GeV/$$c$$ than are predicted by the theoretical model, and striking fluctuations in the ratio of data to the theoretical model around $$p_{m}$$$$= $0.3 GeV/$$c$$ are possible signals of initial-state multinucleon correlations.

Research Organization:
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP); National Science Foundation (NSF); USDOE Office of Science (SC), High Energy Physics (HEP)
Contributing Organization:
Jefferson Lab Hall A Collaboration
Grant/Contract Number:
AC05-06OR23177; AC02-05CH11231; AC02-06CH11357
OSTI ID:
1873991
Alternate ID(s):
OSTI ID: 1834746; OSTI ID: 1895345; OSTI ID: 1906333
Report Number(s):
JLAB-PHY-19-2934; DOE/OR/23177-4679; arXiv:1905.00541; PHY-2012413; PHY 16-15067; PHY 09-69380; TRN: US2306632
Journal Information:
Physical Review. C, Vol. 105, Issue 6; ISSN 2469-9985
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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