On the Origin of the Intensity Deficit in Neutron Compton Scattering
G. F. Reiter, P. M. Platzman
TL;DR
This paper investigates the cause of the observed intensity deficit in neutron Compton scattering for hydrogen, attributing it to a breakdown of the Born-Oppenheimer approximation in the final states of the scattering process.
Contribution
It identifies the breakdown of the Born-Oppenheimer approximation as the source of the intensity deficit in neutron Compton scattering involving hydrogen.
Findings
Breakdown of the Born-Oppenheimer approximation explains the intensity deficit.
The effect is observed across various materials.
The study links the deficit to fundamental quantum mechanical effects.
Abstract
Neutron Compton Scattering measurements in a variety of materials have shown a relative deficit in the total signal from hydrogen compared to deuterium and heavier ions. We show here that a breakdown in the Born-Oppenheimer approximation in the final states of the scattering process leads to such a deficit, and may be responsible for the effect.
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