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arXiv · 1411.7076

Covariant Spectator Theory of np scattering: Deuteron Quadrupole Moment

Franz Gross
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Abstract

The deuteron quadrupole moment is calculated using two CST model wave functions obtained from the 2007 high precision fits to $np$ scattering data. Included in the calculation are a new class of isoscalar $np$ interaction currents automatically generated by the nuclear force model used in these fits. The prediction for model WJC-1, with larger relativistic P-state components, is 2.5% smaller that the experimental result, in common with the inability of models prior to 2014 to predict this important quantity. However, model WJC-2, with very small P-state components, gives agreement to better than 1%, similar to the results obtained recently from $χ$EFT predictions to order N$^3$LO.

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Franz Gross. 2014-11-26. Covariant Spectator Theory of np scattering: Deuteron Quadrupole Moment. https://doi.org/10.1103/physrevc.91.014005

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