AMC 12 atomic mass compilation data extrapolated for atomic masses of nuclei far from the valley of stability

Abstract

The experimental mass data from the Atomic Mass Compilation - 2012 (AMC12) has been analyzed for two-neutron separation energies (S${}_{2n}$), two-proton separation energies (S${}_{2p}$), double-beta decay energies (Q${}_{2{\beta }^{-}}$), and four-beta decay energies (Q${}_{4{\beta }^{-}}$) and plotted against neutron number and mass number, respectively. A new weighted slope method of extrapolation, tested for known and new mass measurements, has been used to obtain the extrapolated mass values with better precision for more than 1100 nuclei far from the valley of stability, out of which more than 100 are being reported for the first time. A comparison has been made with five of the popular mass models with reference to experimental extrapolated masses from the present work and the Atomic Mass Evaluation 2016 (AME16). The extrapolated experimental atomic mass data will be very useful for both experimentalists and mass-model theoreticians, as well as in simulations of astrophysical r-processes.

arXiv commentTables/data sets 2-5 in the article are available in spreadsheet (.xlsx) format through Figshare (reference 22 in the article)

References in corpus (19)

• Nuclear Ground-State Masses and Deformations
• Nuclear ground-state masses and deformations: FRDM(2012)
• Microscopic mass formulae
• Surface diffuseness correction in global mass formula
• Further explorations of Skyrme-Hartree-Fock-Bogoliubov mass formulas. XII: Stiffness and stability of neutron-star matter
• First direct mass measurements of nuclides around $Z=100$ with a Multireflection Time-of-Flight Mass Spectrograph
• Evaluated Experimental Isobaric Analogue States from $T=1/2$ to $T=3$ and associated IMME coefficients
• Precision mass measurements on neutron-rich rare-earth isotopes at JYFLTRAP - reduced neutron pairing and implications for the $r$-process calculations
• Isochronous mass measurements of $T_z=-1$ $fp$-shell nuclei from projectile fragmentation of ${}^{58}$Ni
• Isobaric Multiplet Mass Equation for $A\le 71$ Revisited
• First glimpse of the $N=82$ shell closure below $Z=50$ from masses of neutron-rich cadmium isotopes and isomers
• Mass Predictions of Atomic Nuclei in the Infinite Nuclear Matter Model
• Mass Measurements of Neutron-Deficient Y, Zr, and Nb Isotopes and Their Impact on $rp$ and $\nu p$ Nucleosynthesis Processes
• Time-of-flight mass measurements of neutron-rich chromium isotopes up to N = 40 and implications for the accreted neutron star crust
• Exploring the mass surface near the rare-earth abundance peak via precision mass measurements at JYFLTRAP
• Beta-decay spectroscopy of ${}^{27}$S
• Masses of ground and isomeric states of ${}^{101}$In and configuration-dependent shell evolution in odd-$A$ indium isotopes
• Mass Measurements of Neutron-Rich Gallium Isotopes Refine Production of Nuclei of the First r-Process Abundance Peak in Neutron Star Merger Calculations
• AMC 12 atomic mass compilation data extrapolated for atomic masses of nuclei far from the valley of stability

Cited by in corpus (1)

• AMC 12 atomic mass compilation data extrapolated for atomic masses of nuclei far from the valley of stability