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Title: Experimental techniques and performance of Λ -hypernuclear spectroscopy with the ( e , e ' K + ) reaction

The missing-mass spectroscopy of $$\Lambda$$ hypernuclei via the $$(e,e^{\prime}K^{+})$$ reaction has been developed through experiments at JLab Halls A and C in the last two decades. For the latest experiment, E05-115 in Hall C, we developed a new spectrometer system consisting of the HKS and HES; resulting in the best energy resolution ($$E_{\Lambda} \simeq0.5$$-MeV FWHM) and $$B_{\Lambda}$$ accuracy ($$B_{\Lambda}\leq0.2$$ MeV) in $$\Lambda$$-hypernuclear reaction spectroscopy. This paper describes the characteristics of the $$(e,e^{\prime}K^{+})$$ reaction compared to other reactions and experimental methods. In addition, the experimental apparatus, some of the important analyses such as the semi-automated calibration of absolute energy scale, and the performance achieved in E05-115 are presented.
Authors:
 [1] ;  [2] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [3] ;  [4] ;  [1] ;  [5] ;  [2]
  1. Tohoku Univ., Sendai (Japan)
  2. Hampton Univ., Hampton, VA (United States)
  3. Florida Intl Univ., Miami, FL (United States)
  4. Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States); Hampton Univ., Hampton, VA (United States)
  5. Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Publication Date:
Report Number(s):
JLAB-PHY-17-2582; DOE/OR/23177-4242; arXiv:1709.05682
Journal ID: ISSN 0168-9002; PII: S0168900218306570
Grant/Contract Number:
18H01219; 17H01121; 12002001; 15684005; 16GS0201; 12J04123; 21002; R2201; AC05-84ER40150; AC05-06OR23177; FG02-99ER41065; FG02-97ER41047; AC02-06CH11357; FG02-00ER41110; AC02-98CH10886; 013815; 0758095
Type:
Accepted Manuscript
Journal Name:
Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
Additional Journal Information:
Journal Volume: 900; Journal Issue: C; Journal ID: ISSN 0168-9002
Publisher:
Elsevier
Research Org:
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Sponsoring Org:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
OSTI Identifier:
1458442