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Improved description of light nuclei through chiral effective field theory at leading order

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arxiv 2002.12258 v2 pith:EE7LXWNR submitted 2020-02-27 nucl-th

classification nucl-th
keywords chiraldescriptioneffectiveimprovedleadingnucleiorderpartial
verification ladder T0 review T1 audit T2 compute T3 formal
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We propose an arrangement of the most commonly invoked version of the two-nucleon chiral potential such that the low-lying amplitude zero of the 1S0 partial wave is captured at leading order of the effective expansion. Adopting other partial waves from the LENPIC interaction, we show how this modification yields an improved description of ground-state energies and point-proton radii of three test nuclei.

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