Abstract
The librational ground state multiplet of a tetrahedrally coordinated four proton group (CH 4, NH + 4) consists of several sublevels for the different spin isomers. The neutron scattering from these levels is shown to be coherent. Several neutron scattering experiments are proposed to test the predicted Q dependence of the scattering intensity. NMR as well as neutron experiments can detect the exponential variation of the splitting with the potential.
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