Nuclear Data Sheets for A=40

The experimental nuclear structure data and decay data are evaluated for the known nuclides of mass 40 (Mg, Al, Si, P, S, Cl, Ar, K, Ca, Sc, Ti). Detailed evaluated nuclear structure information is presented with the best values recommended for level energies, half-lives, gamma-ray energies and intensities, decay properties (energies, intensities and placement of radiations), and other spectroscopic data. The Ca-40 and K-40 nuclides remain as the most extensively studied from many different reactions and decays; no excited states are known in Mg-40, Al-40, P-40 and Ti-40. This work supersedes the earlier full evaluation of A=40 by J. Cameron and B. Singh (2004Ca38).