Gamma-ray spectroscopy of ${}_{17}^{38}$Cl using grazing reactions

Abstract

Excited states of ${}_{17}^{38}$Cl${}_{21}$ were populated in grazing reactions during the interaction of a beam of ${}_{16}^{36}$S${}_{20}$ ions of energy 215 MeV with a ${}_{82}^{208}$Pb${}_{126}$ target. The combination of the PRISMA magnetic spectrometer and the CLARA ${\hat{I}}^3$-ray detector array was used to identify the reaction fragments and to detect their decay via ${\hat{I}}^3$-ray emission. A level scheme for ${}^{38}$Cl is presented with tentative spin and parity assignments. The level scheme is discussed within the context of the systematics of neighboring nuclei and is compared with the results of state-of-the-art shell model calculations.

8 pages, 6 figures and 2 tables Changes: Table II and Figure 5 have been updated