The Directional Correlation of theγRays ofA38

Abstract

The angular correlation of the $\gamma$ rays in ${\mathrm{A}}^{38}$ following the $\beta$-decay of ${\mathrm{Cl}}^{38}$ has been measured. The correlation function is in agreement with that expected for the spin sequence $3\left(D\right)2\left(Q\right)0$ or possibly $1(D, Q)2\mathrm{}\left(Q\right)0$ with a 2.5 percent quadrupole intensity (out of phase). Gamma-ray lifetime arguments strongly favor the 3-2-0 spin sequence.