An accurate nucleon-nucleon potential with charge-independence breaking

1994/08/15 by R. B. Wiringa, V. G. J. Stoks, R. Schiavilla · 2 citations
Physics and Astronomy · #nucl-th

paper · pdf · doi:10.1103/physrevc.51.38

published as Phys.Rev.C51:38-51,1995 · 36 pages, PHY-7742-TH-94

arxiv created 1994/08/15 · arxiv updated 2009/12/01

Abstract

We present a new high-quality nucleon-nucleon potential with explicit charge dependence and charge asymmetry, which we designate Argonne v₁₈. The model has a charge-independent part with fourteen operator components that is an updated version of the Argonne v₁₄ potential. Three additional charge-dependent and one charge-asymmetric operators are added, along with a complete electromagnetic interaction. The potential has been fit directly to the Nijmegen pp and np scattering data base, low-energy nn scattering parameters, and deuteron binding energy. With 40 adjustable parameters it gives a χ² per datum of 1.09 for 4301 pp and np data in the range 0--350 MeV.

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