A pioneering experiment in Lambda hypernuclear spectroscopy, undertaken at the Thomas Jefferson National Accelerator Facility (Jlab), was recently reported. The experiment used the high- precision, continuous electron beam at Jlab, and a special arrangement of spectrometer magnets to measure the spectrum from {nat}C and 7Li targets using the (e,e' K+)reaction. The 12B hypernuclear spectrum was previously published. This experiment is now reported in more detail, with improved results for the 12B hypernuclear spectrum. In addition, unpublished results of the 7He hypernuclear spectrum are also shown. This later spectrum indicates the need for a more detailed few-body calculation of the hypernucleus and the reaction process. The success of this experiment demonstrates that the (e,e'K+) reaction can be effectively used as a high resolution tool to study hypernuclear spectra, ant its use should be vigorously pursued.

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Also archived at: arXiv:nucl-ex/0408011 v1 10 Aug 2004 / The date stated on this paper is incorrect. The Southeastern University Research Association (SURA) operates JLab for the U.S. Department of Energy under Contract No. DE-AC05-84ER40150. This work is also supported in part by research grants from the U.S. Department of Energy and the National Science Foundation, by Monkasho Grant-in-aid for Scientific Research (09304028, 09554007, 12002001), and by the US-Japan collaborative research program under the auspices of the NSF and Japan Society for Promotion of Science.ISSN:1089-490X Note: imported from RIT’s Digital Media Library running on DSpace to RIT Scholar Works in February 2014.

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Department, Program, or Center

School of Physics and Astronomy (COS)


RIT – Main Campus