Lawrence Berkeley National Laboratory

© 2017 Elsevier Inc. 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, γ-ray energies and intensities, decay properties (energies, intensities and placement of radiations), and other spectroscopic data. The40Ca and40K nuclides remain as the most extensively studied from many different reactions and decays; no excited states are known in40Mg,40Al,40P and40Ti. This work supersedes the earlier full evaluation of A=40 by J. Cameron and B. Singh (2004Ca38).