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2023-07-13

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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/215444

Correlations between charge radii differences of mirror nuclei and stellar observables

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https://doi.org/10.1103/PhysRevC.108.015802

Abstract

The correlation between the charge radii differences in mirror nuclei pairs and the neutron skin thickness has been studied with the so-called finite range simple effective interaction over a wide mass region. The so far precisely measured charge radii difference data within their experimental uncertainty ranges in the 34Ar-34S, 36Ca-36S, 38Ca-38Ar, and 54Ni-54Fe mirror pairs are used to ascertain an upper limit for the slope parameter of the nuclear symmetry energy L ≈ 100 MeV. This limiting value of L is found to be consistent with the upper bound of the NICER PSR J0740+6620 constraint at 1σ level for the radius R1.4 of 1.4M neutron stars. The lower bound of the NICER R1.4 data constrains the lower limit of L to ≈70 MeV. Within the range for L = 70–100 MeV the tidal deformability Lambda1.4 constraint, which is extracted from the GW170817 event at 2σ level, and the recent PREX-2 and CREX data on the neutron skin thickness are discussed.

Subject

Estels de neutrons, Propietats de la matèria, Física nuclear

Subject (English)

Neutron stars, Properties of matter, Nuclear physics

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Articles publicats en revistes (Física Quàntica i Astrofísica)
Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB))

Citation

BANO, P., et al. Correlations between charge radii differences of mirror nuclei and stellar observables. Physical Review C. 2023. Vol. C108, num. 1, pags. 1-8. ISSN 2469-9985. [consulted: 11 of August of 2026]. Available at: https://hdl.handle.net/2445/215444

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