NP triple scattering experiments and I=O NN phase shifts
The Wolfenstein parameters Dt, Rt and At have been measured in free np elastic scattering with an accuracy of ±0.05 at 220, 325, 425 and 495 MeV in the centre of mass angular range 60° to 160°. The polarisation P has been measured with an accuracy of ±0.015. The I=0 phase shifts differ significantly from theoretical predictions, particularly in the central and spin-orbit combinations of D waves.
KeywordsEnergy Neutron Neutron Beam Recoil Proton Liquid Hydrogen Target Heavy Boson
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