4.7 Article

Is there an Ay problem in low-energy neutron-proton scattering?

Journal

PHYSICS LETTERS B
Volume 668, Issue 2, Pages 163-166

Publisher

ELSEVIER SCIENCE BV
DOI: 10.1016/j.physletb.2008.08.037

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Funding

  1. Jefferson Science Associates, LLC [DE-AC05-06OR23177]
  2. FCT [POCTI/ISFL/2/275]

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We calculate A(y) in neutron-proton scattering for the interactions models WJC-1 and WJC-2 in the Covariant Spectator Theory. We find that the recent 12 MeV measurements performed at TUNL are in better agreement with our results than with the Nijmegen Phase Shift Analysis of 1993, and after reviewing the low-energy data, conclude that there is no A(y) problem in low-energy np scattering. (C) 2008 Elsevier B.V. All rights reserved.

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