First chiral EFT extraction of the deuteron gravitational form factors; D2 and D3 disagree with model calculations, notably D3 is finite at q=0.
Deuteron electromagnetic form factors in a renormalizable formulation of chiral effective field theory
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abstract
We calculate the deuteron electromagnetic form factors in a modified version of Weinberg's chiral effective field theory approach to the two-nucleon system. We derive renormalizable integral equations for the deuteron without partial wave decomposition. Deuteron form factors are extracted by applying the Lehmann-Symanzik-Zimmermann reduction formalism to the three-point correlation function of deuteron interpolating fields and the electromagnetic current operator. Numerical results of a leading-order calculation with removed cutoff regularization agree well with experimental data.
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Gravitational form factors of the deuteron
First chiral EFT extraction of the deuteron gravitational form factors; D2 and D3 disagree with model calculations, notably D3 is finite at q=0.