Can long-range nuclear properties Be influenced by short range interactions? A chiral dynamics estimate Article Swipe

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Gerald A. Miller , A. Beck , S. May-Tal Beck , L. B. Weinstein , E. Piasetzky , O. Hen ·

YOU? · · 2019 · Open Access · · DOI: https://doi.org/10.1016/j.physletb.2019.05.010 · OA: W2899070132

Recent experiments and many-body calculations indicate that approximately 20% of the nucleons in medium and heavy nuclei (A ≥12) are part of short-range correlated (SRC) primarily neutron-proton (np) pairs. We find that using chiral dynamics to account for the formation of nppairs due to the effects of iterated and irreducible two-pion exchange leads to values consistent with the 20% level. We further apply chiral dynamics to study how these correlations influence the calculations of nuclear charge radii, that traditionally truncate their effect, to find that they are capable of introducing non-negligible effects.