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Nuclear charge radii of silicon isotopes

Nuclear Experiment 2025-11-07 v2 Nuclear Theory

Abstract

The nuclear charge radius of 32^{32}Si was determined using collinear laser spectroscopy. The experimental result was confronted with ab initio nuclear lattice effective field theory, valence-space in-medium similarity renormalization group, and mean field calculations, highlighting important achievements and challenges of modern many-body methods. The charge radius of 32^{32}Si completes the radii of the mirror pair 32^{32}Ar - 32^{32}Si, whose difference was correlated to the slope LL of the symmetry energy in the nuclear equation of state. Our result suggests L60L \leq 60\,MeV, which agrees with complementary observables.

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Cite

@article{arxiv.2309.02037,
  title  = {Nuclear charge radii of silicon isotopes},
  author = {Kristian König and Julian C. Berengut and Anastasia Borschevsky and Alex Brinson and B. Alex Brown and Adam Dockery and Serdar Elhatisari and Ephraim Eliav and Ronald F. Garcia Ruiz and Jason D. Holt and Bai-Shan Hu and Jonas Karthein and Dean Lee and Yuan-Zhuo Ma and Ulf-G. Meißner and Kei Minamisono and Alexander V. Oleynichenko and Skyy Pineda and Sergey D. Prosnyak and Marten L. Reitsma and Leonid V. Skripnikov and Adam Vernon and Andrei Zaitsevski},
  journal= {arXiv preprint arXiv:2309.02037},
  year   = {2025}
}