Nuclear Data Sheets for A = 34

Abstract

Nuclear spectroscopic information for experimentally investigated nuclides of mass 34 (Ne, Na, Mg, Al, Si, P, S, Cl, Ar, K, Ca) has been evaluated. The principal sources of the Adopted Levels presented for nuclides close to the stability line are Endtʼs evaluations (1990En08, 1978En02). The data sets for reactions and decays, including all available gamma–ray data, are based mostly on the original literature. There are no data available for the excited states in 34Ne and 34Na. The existence of the 34K and 34Ca nuclides has been searched and reported in a secondary publication but no evidence was found for their detection. Both nuclides are possible candidates for one or two–proton emission. Only upper limits of half–lives have been proposed based on expected cross sections. Decay schemes for the β decays of 34Ne, 34Na, 34Mg, and 34Si are not known. Very little information is available for β–delayed neutron decays of 35Na, 35Mg and 35Si which lead to population of levels in A = 34 nuclides. Neutron–rich nuclides in this mass region are relevant to “island of inversion”.