High-precision ab initio calculations of nuclear binding energies: Tin isotopes from dripline to dripline

Urban Vernik; Pepijn Demol; Thomas Duguet; Alexander Tichai

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arXiv · 2607.05086

High-precision ab initio calculations of nuclear binding energies: Tin isotopes from dripline to dripline

Urban Vernik·Pepijn Demol·Thomas Duguet·Alexander Tichai

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Abstract

The location of the neutron drip line in tin isotopes has important consequences for our fundamental understanding of nuclear structure and nuclear forces as well as for astrophysical nucleosynthesis. Performing high-precision ab initio calculations of even-even tin isotopes from $N=50$ to $N=126$ based on chiral two- and three-nucleon interactions, the predicted drip-line location is found to be highly sensitive to the employed nuclear interactions and to exhibit tension with recent energy-density-functional predictions. On the neutron-deficient side, results are consistent with extrapolated two-neutron separation energies constrained by recent Penning-trap mass measurements.

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Urban Vernik, Pepijn Demol, Thomas Duguet, Alexander Tichai. 2026-07-06. High-precision ab initio calculations of nuclear binding energies: Tin isotopes from dripline to dripline. https://arxiv.org/abs/2607.05086

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