First Determination of Level Structure of an $sd$-Shell Hypernucleus, ${}_{\mathrm{\Lambda }}^{19}\mathrm{F}$

S. B. Yang, J. K. Ahn, Y. Akazawa +45

We report on the first observation of $\gamma$ rays emitted from an $sd$-shell hypernucleus, ${}_{\mathrm{\Lambda }}^{19}\mathrm{F}$. The energy spacing between the ground state doublet, $1/2^{+}$ and $3/2^{+}$…