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arXiv · 1212.0783

High Resolution Hypernuclear Spectroscopy at Jefferson Lab Hall A

F. Garibaldi·P. Bydzovsky·E. Cisbani
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Abstract

The characteristics of the Jefferson Lab electron beam, together with those of the experimental equipment, offer a unique opportunity to study hypernuclear spectroscopy via electromagnetic induced reactions. Experiment 94-107 started a systematic study on 1p-shell targets, $^{12}C$, $^{9}Be$ and $^{16}O$. For $^{12}C$ for the first time measurable strength in the core-excited part of the spectrum between the ground state and the p state was shown in $^{12}_ΛB$ spectrum. A high-quality $^{16}_ΛN$ spectrum was produced for the first time with sub-MeV energy resolution. A very precise $Λ$ binding energy value for $^{16}_ΛN$, calibrated against the elementary $(e,e'K^+)$ reaction on hydrogen, has also been obtained. $^{9}_ΛLi$ spectrum shows some disagreement in strength for the second and third doublet with respect to the theory.

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F. Garibaldi, P. Bydzovsky, E. Cisbani. 2012-12-04. High Resolution Hypernuclear Spectroscopy at Jefferson Lab Hall A. https://doi.org/10.1016/j.nuclphysa.2013.02.054

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