Investigation of the ground-state spin inversion in the neutron-rich 47,49Cl isotopes

Abstract

A first gamma-ray study of 47,49Cl spectroscopy was performed at the Radioactive Isotope Beam Factory with 50Ar projectiles at 217 MeV/nucleon, impinging on the liquid hydrogen target of the MINOS device. Prompt de-excitation gamma-rays were measured with the NaI(Tl) array DALI2+. Through the one-proton knockout reaction 50Ar(p,2p), a spin assignment could be determined for the low-lying states of 49Cl from the momentum distribution obtained with the SAMURAI spectrometer. A spin-parity J = 3/2+ is deduced for the ground state of 49Cl, similar to the recently studied N = 32 isotope 51K.

References in corpus (10)

• Chiral effective field theory and nuclear forces
• Improved nuclear matter calculations from chiral low-momentum interactions
• Accurate nuclear radii and binding energies from a chiral interaction
• Collapse of the N=28 shell closure in ${}^{42}$Si
• A nucleus-dependent valence-space approach to nuclear structure
• Evolution of the $E(1/2_1^{+})-E(3/2_1^{+})$ energy spacing in odd-mass K, Cl and P isotopes for $N=20-28$
• Shell structure of potassium isotopes deduced from their magnetic moments
• Moving away from singly-magic nuclei with Gorkov Green's function theory
• Examining the $N$ = 28 shell closure through high-precision mass measurements of ${}^{46-48}$Ar
• $\mathbf{N}=32$ shell closure below calcium: Low-lying structure of ${}^{50}$Ar

Cited by in corpus (4)

• Gorkov algebraic diagrammatic construction formalism at third order
• Spectroscopy of deeply bound orbitals in neutron-rich Ca isotopes
• Effective polarization in proton-induced $\alpha$ knockout reactions
• Systematic analysis of the nuclear absorption effect on the cross section of the knockout reaction