Toward ab initio charge symmetry breaking in nuclear energy density functionals

Naito, Tomoya; Colò, Gianluca; Liang, Haozhao; Roca-Maza, Xavier; Sagawa, Hiroyuki

doi:10.48550/arxiv.2107.14436

Cited by 2 publications

(2 citation statements)

References 74 publications

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“…6 (a) with u 0 = 0, 25, and 50 MeV fm 3 keeping the CSB parameter −s 0 = 0 MeV fm 3 , as did in Ref. [16]. We can see that the CIB interaction does not change at all the magnitude of IV density.…”

Section: Isospin Impurity and Isospin Symmetry Breaking Forcessupporting

confidence: 64%

Isovector density and isospin impurity in $^{40} \mathrm{Ca}$

Sagawa,

Yoshida,

Naito

et al. 2021

Preprint

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We study isoscalar (IS) and isovector (IV) densities in 40 Ca in comparisons with theoretical densities calculated by Skyrme Hatree-Fock and relativistic mean-field models. The charge symmetry breaking and the charge independence breaking forces are introduced to study the effect on the IV density. The effect of isospin mixing in the ground-state density is examined by using the particlevibration coupling model taking into account the collective IV giant monopole excitation. We show a clear correlations in the IV density and isospin impurity of 40 Ca within the HF and the particle-vibration coupling model. We extract for the first time the experimental information of isospin impurity from the magnitude of IV density.

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Section: Isospin Impurity and Isospin Symmetry Breaking Forcessupporting

confidence: 64%

Isovector density and isospin impurity in $^{40} \mathrm{Ca}$

Sagawa,

Yoshida,

Naito

et al. 2021

Preprint

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“…These results can be used to constrain the charge-symmetrybreaking term in Skyrme density functional theory according to Ref. [91].…”

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confidence: 99%

Trends of neutron skins and radii of mirror nuclei from first principles

Novario¹,

Lonardoni²,

Gandolfi³

et al. 2021

Preprint

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The neutron skin of atomic nuclei impacts the structure of neutron-rich nuclei, the equation of state of nucleonic matter, and the size of neutron stars. Here we predict the neutron skin of selected light and medium-mass nuclei using coupled-cluster theory and the auxiliary field diffusion Monte Carlo method with two-and three-nucleon forces from chiral effective field theory. We find a linear correlation between the neutron skin and the isospin asymmetry and compare with data. We also find a linear relationship between proton and neutron radii of mirror nuclei and quantify the effect of charge symmetry breaking. Our results for the mirror-difference charge radii and binding energies per nucleon agree with existing data.

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Toward ab initio charge symmetry breaking in nuclear energy density functionals

Abstract: In this suppelemental material, we show results for 16 O, 40 Ca, and 48 Ni, together with those for 48 Ca and 208 Pb. We also discuss the effects of the Coulomb interaction.

Cited by 2 publications

References 74 publications

Isovector density and isospin impurity in $^{40} \mathrm{Ca}$

Isovector density and isospin impurity in $^{40} \mathrm{Ca}$

Trends of neutron skins and radii of mirror nuclei from first principles

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