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16 April 2024

» arxiv » nucl-ex/0412026

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Measurement of the Absolute np Scattering Differential Cross Section at 194 MeV
M. Sarsour ; T. Peterson ; M. Planinic ; S.E. Vigdor ; C. Allgower ; B. Bergenwall ; J. Blomgren ; T. Hossbach ; W.W. Jacobs ; C. Johansson ; J. Klug ; A.V. Klyachko ; P. Nadel-Turonski ; L. Nilsson ; N. Olsson ; S. Pomp ; J. Rapaport ; T. Rinckel ; E.J. Stephenson ; U. Tippawan ; S.W. Wissink ; Y. Zhou ;
Date:	11 Dec 2004
Journal:	Phys.Rev.Lett. 94 (2005) 082303
Subject:	nucl-ex
Abstract:	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.
Source:	arXiv, nucl-ex/0412026
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