Measurement of the absolute n p scattering differential cross section at 194 MeV (CROSBI ID 113888)
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Sarsour, M. ; Peterson, T. ; Planinić, Mirko ; et al.
engleski
Measurement of the absolute n p scattering differential cross section at 194 MeV
We describe a double-scattering experiment with a novel tagged neutron beam to measure differential cross sections for np back-scattering to better than 2% absolute precision. The measurement focuses on angles and energies where the cross section magnitude and angle-dependence constrain the charged pion-nucleon coupling constant, but existing data show serious discrepancies among themselves and with energy-dependent partial wave analyses (PWA). The present results are in good accord with the PWA, but deviate systematically from other recent measurements.
np back-scattering cross section
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