A study of charge radii and neutron skin thickness near nuclear drip lines

Abstract

We studied the charge radius, rms radius and neutron skin thickness ∆r np in even-even isotopes of Si, S, Ar and Ca and isotones of N =20, 28, 50 and 82. The ∆r np in doubly-magic 48 Ca, 68 Ni, 120,132 Sn and 208 Pb nuclei has also been calculated. Theoretical calculations are done with the Hartree-Fock-Bogoliubov theory with the effective Skyrme interactions. Calculated theoretical estimates are in good agreement with the recently available experimental data. The charge radii for Si, S, Ar and Ca isotopes is observed to be minimum at neutron number N =14. The theoretically computed results with UNEDF0 model parameterization of functional are reasonably reproducing the experimental data for ∆r np in 48 Ca, 68 Ni and 120,132 Sn. The energy density functional of UNEDF1 model provides much improved result of ∆r np for 208 Pb.

A study of nuclear radii and neutron skin thickness of neutron-rich nuclei near the neutron drip line

“…For instance, the relativistic continuum Hartree-Bogolivbov (RCHB) theory reports the drip line nucleus to be 30 O [55], but our RMF with NL3 and NL3* marks 29 O as a drip nucleus, whereas the experimentally observed nucleus is 26 O. The drip line isotope for C is predicted as 24 C within RCHB framework [56], where our results suggest as 23 C. Also, the last bound isotope for Ca is predicted as 72 Ca within RCHB [55], HFB [57], SHF [58,59] methods and our result predicts 73 Ca and 71 Ca for NL3 and NL3* parametrizations, respectively. In the case of Ni, 100 Ni is predicted as a drip nucleus with RCHB [55] while present calculations suggest as 98 Ni is the drip line nucleus with neutron number N = 70 within both parameterizations.…”

Microscopic study of the Shell Structure evolution in isotopes of light to middle mass range Nuclides

“…In this theory, the pairing field and the mean field are given equal footings. Details of the theory can be extracted from our previous work [22] based on the zero range Skyrme effective interactions [16] used in the mean field part. More details can be found in ref.…”

Impact of Nuclear Deformation on Neutron Dripline Prediction: A Study of Mg Isotopes

“…Nuclear density functional theories have been using to understand nuclear many-body dynamics for an appreciable description of nuclei near the drip lines [8][9][10][11]. It is also found to provide appreciable results for the shape of the nuclei.…”