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We present an exact solution to the one-dimensional (1-D)scattering-from-a-barrier problem for an incident neutron described by a wavepacket. As an aid to presenting our approach, we spend some time on a basicreview of how wave packets appear in standard quantum mechanics (SQM), payingattention to interpretive aspects of a working theory both familiar on the onehand while historically subject to debates, confusion, and misunderstandings onthe other. Several appendices also are included to address various mathematicalissues that may be helpful to some readers.

On Scattering of 1-D Wave Packets