Correlations between charge radii differences of mirror nuclei and stellar observables
| Autor: | Bano, P., Pattnaik, S. P., Centelles, M., Viñas, X., Routray, T. R. |
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| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | Phys. Rev. C 108, 015802 (2023) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevC.108.015802 |
| Popis: | 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 $\approx$ 100 MeV. This limiting value of L is found to be consistent with the upper bound of the NICER PSR J0740+6620 constraint at 1$\sigma$ level for the radius R$_{1.4}$ of 1.4 M$_\odot$ neutron stars. The lower bound of the NICER R$_{1.4}$ data constrains the lower limit of L to $\approx$ 70 MeV. Within the range for L = 70-100 MeV the tidal deformability $\Lambda^{1.4}$ constraint, which is extracted from the GW170817 event at 2$\sigma$ level, and the recent PREX-2 and CREX data on the neutron skin thickness are discussed. Comment: 10 pages, 5 figures, 2 tables |
| Databáze: | arXiv |
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