A bstract Precision measurements in allowed nuclear beta decays and neutron decay are
reviewed and analyzed both within the Standard Model and looking for new physics. The …

The Fermi function F (Z, E) accounts for QED corrections to beta decays that are enhanced
at either small electron velocity β or large nuclear charge Z. For precision applications, the …

The precision of correlation measurements in neutron and nuclear β decay has now
reached the level of about 1% and better. At this level of precision, higher-order corrections …

In the limit of large nuclear charge, Z≫ 1, or small lepton velocity, β≪ 1, Coulomb
corrections to nuclear beta decay and related processes are enhanced as Z α/β and become …

A bstract We discuss the effective field theory (EFT) for nuclear beta decay. The general
quark-level EFT describing charged-current interactions between quarks and leptons is …

This white paper was submitted to the 2022 Fundamental Symmetries, Neutrons, and
Neutrinos (FSNN) Town Hall Meeting in preparation for the next NSAC Long Range Plan …

This whitepaper presents the research priorities decided on by attendees of the 2022 Town
Meeting for Fundamental Symmetries, Neutrons and Neutrinos, which took place December …

Abstract The Superallowed Transition BEta NEutrino Decay Ion Coincidence Trap (St.
Benedict) aims to measure the beta-neutrino angular correlation parameter for superallowed …

A new precision half-life measurement of N 13 has been conducted using the TwinSol β-
counting station at the University of Notre Dame. The measured value of t 1/2 new= 597.05 …

The detailed study of radioactive nuclei has resulted in opportunities for addressing many
open questions in low-energy nuclear physics. For over three decades, the TwinSol …