Magnetic Traps for Neutron Lifetime Measurement

Different geometries of magnetic trap can demonstrate the neutron lifetime anomaly differently. The new n − n′ oscillation mechanism can explain the observed 1% anomaly in neutron lifetime.  Perhaps even more importantly, this mechanism predicts significantly different lifetimes (lower by > 100 seconds) of ultracold neutrons (UCN) in a magnetic trap under specific geometries, which was indeed inconclusively observed in previous measurements in a NIST magnetic trap developed in the mid-1990s and early 2000s.