Impact of Størmer-induced spectral changes on beta-decay observables

Determine whether spectral changes predicted by Størmer theory for non-adiabatic electron transport translate into changes in the inferred limits on neutrino masses and in the error budgets of neutrino–electron correlation measurements derived from beta-decay experiments.

Background

Størmer theory models charged-particle motion in static dipole magnetic fields via an effective potential with a saddle, leading to complex, often chaotic, non-adiabatic trajectories. Such dynamics can alter the electron spectrum observed after magnetic transport.

The paper explicitly raises whether these Størmer-induced spectral modifications could bias or shift beta-decay observables used to extract neutrino properties, including neutrino mass limits and electron–neutrino correlation parameters, which are central to precision experiments.

References

An open question still is whether the spectral changes due to Størmer will translate into changes in the limits on neutrino masses and on errors in neutrino- electron correlation experiments.

Magnetic transport and chaotic orbits of charged particles  (2603.29459 - Dubbers, 31 Mar 2026) in Abstract