Mapping the proton drip-line up to A=70

Abstract

Coulomb energy differences between mirror nuclei with $A\le 70$ are calculated within the framework of the nuclear shell model using an effective Coulomb plus isovector and isotensor interaction. Absolute binding energies for proton-rich nuclei are predicted by adding the calculated Coulomb shifts to experimentally measured binding energies for the neutron-rich mirror. The location of the proton drip-line is investigated, as well as candidates for the exotic decay mode known as di-proton emission. Taking into account the lifetimes of competing decay modes and limits imposed by experimental setups, it is concluded that the best candidates for the observation of correlated di-proton emission are ${}^{45}$Fe, ${}^{48}$Ni, and ${}^{63}$Se.

30 pages, 3 postscript figures, uses RevTex

Cited by in corpus (45)

• The Shell Model as Unified View of Nuclear Structure
• Radioactive decays at limits of nuclear stability
• Models for Type I X-Ray Bursts with Improved Nuclear Physics
• Further improvements on a global nuclear mass model
• First observation of 54Zn and its decay by two-proton emission
• Isobaric multiplet yrast energies and isospin non-conserving forces
• Nuclear mass predictions with radial basis function approach
• Proton Drip-Line Calculations and the Rp-process
• Two-proton radioactivity
• On the discovery of doubly-magic ${}^{48}$Ni
• Proton spectroscopy of 48Ni, 46Fe, and 44Cr
• Three-body forces and proton-rich nuclei
• Variation in displacement energies due to isospin nonconserving forces
• The landscape of two-proton radioactivity
• Crucial test for covariant density functional theory with new and accurate mass measurements from Sn to Pa
• Improved Kelson-Garvey mass relations for proton-rich nuclei
• Recent Progress in Two-proton Radioactivity
• Nuclear masses in extended kernel ridge regression with odd-even effects
• The puzzling two-proton decay of ${}^{67}$Kr
• Two-proton emission and related phenomena
• Isospin Non-Conservation in $sd$-Shell Nuclei
• Systematic study of shell gaps in nuclei
• Extraction of the symmetry energy coefficients from the masses differences of isobaric nuclei
• Mapping the proton drip line from Z=31 to Z=49
• Isospin-symmetry breaking in superallowed Fermi beta-decay due to isospin-nonconserving forces
• Proton drip-line nuclei in relativistic mean-field theory
• Proton decays in ${}^{16}$Ne and ${}^{18}$Mg and isospin-symmetry breaking in carbon isotopes and isotones
• Description of proton-rich nuclei in the $A\sim 20$ region with the Gamow shell model
• Two-proton radioactivity of exotic nuclei beyond proton drip-line
• Decay mechanism and lifetime of ${}^{67}$Kr
• Principal components of nuclear mass models
• Staggering behavior of 0^+ state energies in the Sp(4) pairing model
• Realistic calculations for $c$-coefficients of the isobaric mass multiplet equation in $1p0f$ shell nuclei
• Extended R-matrix description of two-proton radioactivity
• Isobaric-multiplet mass equation in a macroscopic-microscopic approach
• Proton Threshold States in the 22Na(p,gamma)23Mg Reaction and Astrophysical Implications
• Effects of isospin-symmetry violation on tests of the standard model using parity-violating electron scattering
• Capture reactions into borromean two-proton systems at rp-waiting points
• Deformation dependence of 2p-radioactivity half-lives: Probe with a new formula across the mass region with Z<82
• Isospin symmetry breaking in an algebraic pairing Sp(4) model
• Exploring isospin-nonconserving effects in the upper $fp$ shell with new mass measurements
• Isospin Mixing and the Cubic Isobaric Multiplet Mass Equation in the Lowest T = 2, A = 32 Quintet
• Study of isospin nonconservation in the framework of spectral distribution theory
• Iso-scalar liquid drop model
• Ground-state proton decay of 69Br and implications for the rp-process 68Se waiting-point