Generalized Optical Theorem for Structured Neutron Beams and Consequences for Forward-Transmission Null Tests of Time-Reversal Invariance

Sepehr Samiei

The simple form of the optical theorem of scattering theory, ${\sigma }_{\mathrm{tot}}^{\mathrm{pw}}=(4\pi /k)\Im f(0)$, is valid for an incident plane wave or for a wave packet whose Fourier compo…