High Resolution Spectroscopy of 12B_Lambda by Electroproduction
Journal Article
·
· Phys. Rev. Lett.
An experiment measuring electroproduction of hypernuclei has been performed in Hall A at Jefferson Lab on a $$^{12}$$C target. In order to increase counting rates and provide unambiguous kaon identification two superconducting septum magnets and a Ring Imaging CHerenkov detector (RICH) were added to the Hall A standard equipment. An unprecedented energy resolution of less than 700 keV FWHM has been achieved. Thus, the observed \lam{12}{B} spectrum shows for the first time identifiable strength in the core-excited region between the ground-state {\it s}-wave $$\Lambda$$ peak and the 11 MeV {\it p}-wave $$\Lambda$$ peak.
- Research Organization:
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
- Sponsoring Organization:
- USDOE - Office of Energy Research (ER)
- DOE Contract Number:
- AC05-84ER40150
- OSTI ID:
- 912692
- Report Number(s):
- JLAB-PHY-07-646; DOE/ER/40150-4297; 0705.3332v1 [nucl-ex]; PRLTAO; TRN: US0800487
- Journal Information:
- Phys. Rev. Lett., Vol. 99; ISSN 0031-9007
- Country of Publication:
- United States
- Language:
- English
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