https://www.ornl.gov/publication/study-neutron-beta-decay-nab-experiment
The current three sigma tension in the unitarity test of the Cabbibo-Kobayashi-Maskawa (CKM) matrix is a notable problem with the Standard Model of elementary...
beta decaywith thestudyneutronnab
https://www.arxiv.org/abs/hep-ph/9411224
Abstract page for arXiv paper hep-ph/9411224: Bounds on Compositeness from Neutrinoless Double Beta Decay
hepphboundsdoublebeta
https://arxiv.org/abs/1906.04511
Abstract page for arXiv paper 1906.04511: NoMoS: An $R \times B$ Drift Momentum Spectrometer for Beta Decay Studies
nomosrtimesbmomentum