Phase space factors for double-$β$ decay
arXiv:1209.5722 · doi:10.1103/PhysRevC.85.034316
Abstract
A complete and improved calculation of phase space factors (PSF) for $2νββ$ and $0νββ$ decay is presented. The calculation makes use of exact Dirac wave functions with finite nuclear size and electron screening and includes life-times, single and summed electron spectra, and angular electron correlations.