Abstract
An experiment measuring electroproduction of hypernuclei has been performed in hall A at Jefferson Lab on a C12 target. In order to increase counting rates and provide unambiguous kaon identification two superconducting septum magnets and a ring imaging Cherenkov detector were added to the hall A standard equipment. An unprecedented energy resolution of less than 700 keV FWHM has been achieved. Thus, the observed BΛ12 spectrum shows for the first time identifiable strength in the core-excited region between the ground-state s-wave Λ peak and the 11 MeV p-wave Λ peak.
Original language | English |
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Article number | 052501 |
Journal | Physical Review Letters |
Volume | 99 |
Issue number | 5 |
DOIs | |
State | Published - 1 Aug 2007 |