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arXiv · 2402.13323

Low-energy dipole strength in 8He

Francesca Bonaiti·Sonia Bacca
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Abstract

In this work, we present new ab initio coupled-cluster calculations of dipole-excited state properties of 8He based on the chiral effective field theory interaction 1.8/2.0 (EM). We focus on the dipole polarizability, and compare the results to our previous study [Phys. Rev. C 105, 034313 (2022)] and subsequent theoretical work. With the aim of connecting the presence of low-lying dipole strength to structure properties of 8He, we compute the point-neutron radius, finding excellent agreement with available experimental data, and investigate its correlation with the dipole polarizability.

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Francesca Bonaiti, Sonia Bacca. 2024-02-20. Low-energy dipole strength in 8He. https://doi.org/10.1007/s00601-024-01903-7

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