High-precision ab initio radius calculations of boron isotopes

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Abstract
We perform a precision study of radii in Boron isotopes for multiple realistic interactions from chiral effective field theory. We obtain predictions of radii with combined many-body and interaction uncertainty quantification from no-core shell-model calculations together with machine-learning extrapolation methods. An extension to radius differences further allows us to investigate a potential proton halo in B 8 and, moreover, provide predictions that relate directly to the isotope shift, which can be precisely measured in experiments.
Funding Information
  • Deutsche Forschungsgemeinschaft (279384907)
  • Bundesministerium für Forschung, Technologie und Raumfahrt (05P2024, 05P24RDB)
  • U.S. Department of Energy (DE-SC0023495, DE-AC02-06CH11357, DE-AC02-05CH11231)
  • National Energy Research Scientific Computing Center (NP-ERCAP0028672)

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