High resolution spectroscopic study of
Spectroscopy of a $$^{10}_{\Lambda}$$Be hypernucleus was carried out at JLab Hall C using the $$(e,e^{\prime}K^{+})$$ reaction. A new magnetic spectrometer system (SPL+HES+HKS), specifically designed for high resolution hypernuclear spectroscopy, was used to obtain an energy spectrum with a resolution of 0.78 MeV (FWHM). The well-calibrated spectrometer system of the present experiment using the $$p(e,e^{\prime}K^{+})\Lambda,\Sigma^{0}$$ reactions allowed us to determine the energy levels, and the binding energy of the ground state peak (mixture of 1$$^{-}$$ and 2$$^{-}$$ states) was obtained to be B$$_{\Lambda}$$=8.55$$\pm$$0.07(stat.)$$\pm$$0.11(sys.) MeV. Furthermore, the result indicates that the ground state energy is shallower than that of an emulsion study by about 0.5 MeV which provides valuable experimental information on charge symmetry breaking effect in the $$\Lambda N$$ interaction.
- Authors:
- ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; more »
- Publication Date:
- Report Number(s):
- JLAB-PHY-16-2227; DOE/OR/23177-3776; arXiv:1511.04801
Journal ID: ISSN 2469-9985; PRVCAN
- Grant/Contract Number:
- 12002001; 15684005; 16GS0201; 244123; 21002; AC05-84ER40150; AC05-06OR23177; FG02-99ER41065; FG02-97ER41047; AC02-06CH11357; FG02-00ER41110; AC02-98CH10886; 013815; 0758095
- Type:
- Accepted Manuscript
- Journal Name:
- Physical Review C
- Additional Journal Information:
- Journal Volume: 93; Journal Issue: 3; Journal ID: ISSN 2469-9985
- Publisher:
- APS
- Research Org:
- Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
- Sponsoring Org:
- USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
- Contributing Orgs:
- HKS(JLab E05-115) Collaboration
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
- OSTI Identifier:
- 1242487
- Alternate Identifier(s):
- OSTI ID: 1242600