Effects of deformation on the beta-decay patterns of light even-even and odd-mass Hg and Pt isotopes

Abstract

Bulk and decay properties, including deformation energy curves, charge mean square radii, Gamow-Teller (GT) strength distributions, and beta-decay half-lives, are studied in neutron-deficient even-even and odd-A Hg and Pt isotopes. The nuclear structure is described microscopically from deformed quasiparticle random-phase approximation calculations with residual interactions in both particle-hole and particle-particle channels, performed on top of a self-consistent deformed quasiparticle Skyrme Hartree-Fock basis. The observed sensitivity of the, not yet measured, GT strength distributions to deformation is proposed as an additional complementary signature of the nuclear shape. The $\beta$-decay half-lives resulting from these distributions are compared to experiment to demonstrate the ability of the method.

arXiv comment15 pages, 16 figures

References in corpus (41)

• Systematic study of deformed nuclei at the drip lines and beyond
• On the rms-radius of the proton
• One-quasiparticle States in the Nuclear Energy Density Functional Theory
• Charge radii and structural evolution in Sr, Zr, and Mo isotopes
• Tensor part of the Skyrme energy density functional. II: Deformation properties of magic and semi-magic nuclei
• Configuration mixing of angular momentum projected self-consistent mean-field states for neutron-deficient Pb isotopes
• Beyond Mean-Field Calculations for Odd-A Nuclei
• Deformation of the N=Z nucleus 76Sr using beta-decay studies
• Role of triaxiality in the ground state shape of neutron rich Yb, Hf, W, Os, and Pt isotopes
• Shapes and beta decay in proton rich Ge, Se, Kr and Sr isotopes
• Shape transitions in neutron-rich Yb, Hf, W, Os, and Pt isotopes within a Skyrme Hartree-Fock + BCS approach
• Beta decay and shape isomerism in 74Kr
• Two-neutrino double beta decay of 76Ge within deformed QRPA: A new suppression mechanism
• Spin-isospin excitations and beta+/EC half-lives of medium-mass deformed nuclei
• Mean field study of structural changes in Pt isotopes with the Gogny interaction
• A deformed QRPA formalism for single and two-neutrino double beta decay
• Nuclear shape coexistence: A study of the even-even Hg isotopes using the interacting boson model with configuration mixing
• Collectivity-induced quenching of signatures for shell closures
• Systematics of low-lying states of even-even nuclei in the neutron-deficient lead region from a beyond-mean-field calculation
• Beta-decay in odd-A and even-even proton-rich Kr isotopes
• Beta-decay properties of Zr and Mo neutron-rich isotopes
• Structural evolution in Pt isotopes with the Interacting Boson Model Hamiltonian derived from the Gogny Energy Density Functional
• The tensor part of the Skyrme energy density functional. III. Time-odd terms at high spin
• Unveiling the origin of shape coexistence in lead isotopes
• Shape Coexistence in the Relativistic Hartree-Bogoliubov approach
• Shape evolution and the role of intruder configurations in Hg isotopes within the interacting boson model based on a Gogny energy density functional
• Signatures of shape transition in odd-A neutron-rich Rubidium isotopes
• Shape evolution and shape coexistence in Pt isotopes: comparing interacting boson model configuration mixing and Gogny mean-field energy surfaces
• The Pt isotopes: comparing the Interacting Boson Model with Configuration Mixing and the Extended Consistent-Q formalism
• Shape evolution in Yttrium and Niobium neutron-rich isotopes
• The platinum nuclei: concealed configuration mixing and shape coexistence
• Stellar electron-capture rates in pf-shell nuclei from quasiparticle random-phase approximation calculations
• Gamow-Teller response in deformed even and odd neutron-rich Zr and Mo isotopes
• Stellar weak decay rates in neutron-deficient medium-mass nuclei
• Shape coexistence in neutron-deficient Hg isotopes studied via lifetime measurements in ${}^{184,186}$Hg and two-state mixing calculations
• Shape mixing and beta-decay properties of neutron-deficient Kr and Sr isotopes
• Gamow-Teller strength distributions in Fe and Ni stable isotopes
• Half-lives of rp-process waiting point nuclei
• Weak interaction rates for Kr and Sr waiting-point nuclei under rp-process conditions
• beta-decay in neutron-deficient Hg, Pb, and Po isotopes
• Nuclear shape dependence of Gamow-Teller distributions in neutron-deficient Pb isotopes

Cited by in corpus (17)

• Shape staggering of mid-shell mercury isotopes from in-source laser spectroscopy compared with Density Functional Theory and Monte Carlo Shell Model calculations
• Microscopic calculations of weak decays in superheavy nuclei
• Contribution of excited states to stellar weak-interaction rates in odd-A nuclei
• Beta-decay properties of neutron-rich rare-earth isotopes
• On the $\beta$-decay of ${}^{186}$Hg
• Beta-decay properties of neutron-rich Ca, Ti, and Cr isotopes
• Low-energy structure and $\beta$ decay properties of neutron-rich nuclei in the region of a shape phase transition
• Competition between weak and alpha-decay modes in superheavy nuclei
• Electron-capture decay in isotopic transfermium chains from self-consistent calculations
• Self-consistent calculations of electron-capture decays in Z=118, 119, and 120 superheavy isotopes
• Mean-field calculations of charge radii in ground and isomeric states of Cd isotopes
• Simultaneous description of $\beta$ decay and low-lying structure of neutron-rich even- and odd-mass Rh and Pd nuclei
• Ground state properties and shape evolution in Pt isotopes within the covariant density functional theory
• Parameter dependence of the $\beta$-decay properties of neutron-rich Zr isotopes within the interacting boson model
• Sensitivity analysis of $\beta$-decay half-life predictions for Ge, As, Zr and Mo nuclei within the mapped interacting boson model
• Bulk and decay properties of neutron-deficient odd-mass Hg isotopes around A = 185
• Investigation of Gamow-Teller strength of 186Hg within deformed pn-QRPA