The status of tests of the standard electroweak model and of searches for new physics in
allowed nuclear β decay and neutron decay is reviewed including both theoretical and …

The rapid neutron capture process (r process) is believed to be responsible for about half of
the production of the elements heavier than iron and contributes to abundances of some …

The electroweak interaction in the standard model is described by a pure vector-axial-vector
structure, though any Lorentz-invariant component could contribute. In this Letter, we …

Beta-delayed neutron emission is important for nuclear structure and astrophysics as well as
for reactor applications. Significant advances in nuclear experimental techniques in the past …

We present a coupled quasiparticle random phase approximation and Hauser-Feshbach
(QRPA+ HF) model for calculating delayed particle emission. This approach uses …

Precision measurements in nuclear β decay offer a sensitive window to search for new
physics beyond the standard electroweak model. Searches for new physics are also a …

Astrophysical nucleosynthesis is a family of diverse processes by which atomic nuclei
undergo nuclear reactions and decay to form new nuclei. The complex nature of …

We report a high-statistics measurement of the L/K orbital electron capture ratio in Be 7
embedded in cryogenic Ta. The thin Ta film formed part of a high-resolution …

The β+ decay of B 8 provides the dominant source of solar neutrinos above 2 MeV.
Consequently, experiments that detect neutrinos from the sun require an accurate …

In the standard model, the weak interaction is formulated with a purely vector-axial-vector
(VA) structure. Without restriction on the chirality of the neutrino, the most general limits on …