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Electroproduction of the Λ/Σ0 hyperons at Q2 ≃ 0.5 (GeV/c)2 at forward angles

Journal Article · · Physical Review. C
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  1. Tohoku University
  2. KEK
  3. The University of Tokyo
  4. Tohoku University; The University of Tokyo
  5. Kyoto University
  6. Hampton University; Virginia Military Institute
  7. Hampton University; Thomas Jefferson National Accelerator Facility
  8. Nuclear Physics Institute
  9. Universitas Indonesia
  10. University of Virginia
  11. University of Zagreb
  12. Physics and Astronomy Department; California State University, Los Angeles
  13. Department of Physics; William and Mary
  14. University of Tennessee, Knoxville
  15. Istituto Nazionale di Fisica Nucleare, Sezione di Roma
  16. Mississippi State University
  17. Hampton University
  18. Thomas Jefferson National Accelerator Facility
  19. Florida International University
  20. Michigan State University; Michigan State University
  21. Massachusetts Institute of Technology
  22. State University of New York; Stony Brook
  23. University of Connecticut, Storrs
  24. Istituto Nazionale di Fisica Nucleare, Sezione di Roma; Instituto Superiore di Sanità
  25. Hampton University; Michigan State University
  26. Kent State University
  27. Old Dominion University
  28. University of New Hampshire; Lawrence Berkeley National Laboratory
  29. Columbia University
  30. University of Manitoba
  31. Istituto Nazionale di Fisica Nucleare, Sezione di Roma; Sapienza University of Rome
  32. University of Ljubljana; Jožef Stefan Institute; Institut für Kernphysik; Johannes Gutenberg-Universität Mainz
  33. Christopher Newport University
  34. Massachusetts Institute of Technology; Hue University
  35. Argonne National Laboratory
  36. Universidad Ana G. Méndez
  37. Virginia Military Institute
  38. University of New Hampshire
  39. University of Ljubljana; Jožef Stefan Institute
  40. Syracuse University
  41. University of Glasgow
+ Show Author Affiliations
In 2018, the E12-17-003 experiment was conducted at the Thomas Jefferson National Accelerator Facility (JLab) to explore the possible existence of an nn⁢Λ state in the reconstructed missing mass distribution from a tritium gas target [K. N. Suzuki et al., Prog. Theor. Exp. Phys. 2022, 013D01 (2022); B. Pandey et al., Phys. Rev. C 105, L051001 (2022)]. As part of this investigation, data were also collected using a gaseous hydrogen target, not only for a precise absolute mass scale calibration but also for the study of Λ/Σ0 electroproduction. This dataset was acquired at Q2 ≃ 0.5 (GeV/c)2, W = 2.14 GeV, and θ$$^{c.m.}_{γK}$$ ≃ 8°. It covers forward angles where photoproduction data are scarce and a low-Q2 region that is of interest for hypernuclear experiments. On the other hand, this kinematic region is at a slightly higher Q2 than previous hypernuclear experiments, thus providing crucial information for understanding the Q2 dependence of the differential cross sections for Λ/Σ0 hyperon electroproduction. Here, this paper reports on the Q2 dependence of the differential cross section for the e + p → e' + K+ + Λ/Σ0 reaction at 0.2–0.8 (GeV/c)2, and provides comparisons with the currently available theoretical models.
Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Sponsoring Organization:
USDOE
Contributing Organization:
JLab Hypernuclear Collaboration
Grant/Contract Number:
AC02-06CH11357; AC05-06OR23177; FG02-97ER41047
OSTI ID:
2439589
Alternate ID(s):
OSTI ID: 2473361
Report Number(s):
DOE/OR/23177--7625; JLAB-PHY--24-4169; arXiv:2403.01173
Journal Information:
Physical Review. C, Journal Name: Physical Review. C Journal Issue: 2 Vol. 110; ISSN 2469-9985
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
electroweak interactions
hypernuclei
mesic nuclei
nuclear physics
particle & resonance production