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A search for an anomalous n-p scattering from a polyethylene sample (CH2) at 8 final energies between 64 eV and 2.5 keV was carried out. The scattering intensities were compared to that from a graphite (C) sample. The results were found to confirm our previous n-p results on H2O at a final energy of 24.3 keV where no n-p scattering anomaly was observed. The present results refute all proposed models attempting to explain the occurrence of any n-p scattering anomaly at keV neutron energies. [ABSTRACT FROM AUTHOR]

A scattering study of ∼ 30 keV neutrons from H2O, D2O and H2O/D2O mixtures was carried out to search for a ∼ 40% anomalous drop in the n-p scattering cross section. Such an anomaly was reported using 10–200eV neutrons scattered from many H-containing compounds. The anomaly was attributed to n-scattering from quantum entangled proton pairs in the sample. In the present measurement no anomaly was observed. © 2006 American Institute of Physics [ABSTRACT FROM AUTHOR]