${}^{35,37,39}$S isotopes in $sd-pf$ space : Shell-model interpretation

Abstract

The structure of ${}^{35,37,39}$S isotopes is described by performing comprehensive shell model calculations with SDPF-U and SDPFMW interactions. Protons and neutrons are restricted to the $sd$-shell for $N<20$, neutrons start to fill the $pf$-shell for $N>20$. Natural parity states are described by only in-shell mixing, unnatural parity states with 1p-1h inter-shell neutron excitations. With SDPF-U interaction, reported are the results for natural parity states only because this interaction is not suitable for cross shell excitations. Calculated energy levels, electromagnetic properties and spectroscopic factors are in good agreement with the recently available experimental data.

13 pages, 5 figures, 3 tables; Accepted for publication in Nuclear Physics A

References in corpus (6)

• Collapse of the N=28 shell closure in ${}^{42}$Si
• A new effective interaction for $0\hslash \omega$ shell model calculations in the sdpf valence space
• The merging of the islands of inversion at N=20 and N=28
• Discovery of the shape coexisting 0+ state in 32Mg by a two neutron transfer reaction
• Evolution of the $E(1/2_1^{+})-E(3/2_1^{+})$ energy spacing in odd-mass K, Cl and P isotopes for $N=20-28$
• Quadrupole collectivity beyond N=28: Intermediate-energy Coulomb excitation of 47,48Ar

Cited by in corpus (2)

• Shell-model based study of the direct capture in neutron-rich nuclei
• Study of S, Cl and Ar isotopes with $N\ge Z$ using microscopic effective $sd$-shell interactions