Nuclear charge radii of silicon isotopes

Author:

Kristian König, Julian C. Berengut, Anastasia Borschevsky, Alex Brinson, B. Alex Brown, Adam Dockery, Serdar Elhatisari, Ephraim Eliav, Ronald F. Garcia Ruiz, Jason D. Holt, Bai-Shan Hu, Jonas Karthein, Dean Lee, Yuan-Zhuo Ma, Ulf-G. Meißner, Kei Minamisono, Alexander V. Oleynichenko, Skyy Pineda, Sergey D. Prosnyak, Marten L. Reitsma, Leonid V. Skripnikov, Adam Vernon, Andrei Zaitsevski

Keyword:

Nuclear Experiment, Nuclear Experiment (nucl-ex), Nuclear Theory (nucl-th)

journal:

date:

2023-09-04 16:00:00

Abstract

The nuclear charge radius of $^{32}$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 $^{32}$Si completes the radii of the mirror pair $^{32}$Ar - $^{32}$Si, whose difference was correlated to the slope $L$ of the symmetry energy in the nuclear equation of state. Our result suggests $L \leq 60$\,MeV, which agrees with complementary observables.

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