Beta-decay properties of neutron-rich Ca, Ti, and Cr isotopes

Abstract

Beta-decay properties of neutron-rich Ca, Ti, and Cr isotopes are studied within a deformed proton-neutron quasiparticle random-phase approximation. The underlying mean field is described self-consistently from deformed Skyrme Hartree-Fock calculations with pairing correlations. Residual spin-isospin interactions in the particle-hole and particle-particle channels are also included in the formalism. The energy distributions of the Gamow-Teller strength, the beta-decay feedings, the beta-decay half-lives, and the beta-delayed neutron emission probabilities are discussed and compared with other theoretical results, as well as with the available experimental information. The evolution of these nuclear beta-decay properties is investigated in isotopic chains in a search for structural changes. A reliable estimate of the beta-decay properties in this mass region is a valuable information for evaluating decay rates in astrophysical scenarios.

arXiv comment11 pages, 12 figures

References in corpus (34)

• Nuclear weak-interaction processes in stars
• Unexpectedly large charge radii of neutron-rich calcium isotopes
• Systematic study of deformed nuclei at the drip lines and beyond
• Large scale evaluation of beta-decay rates of r-process nuclei with the inclusion of first-forbidden transitions
• Beta decay of r-process waiting-point nuclei in a self-consistent approach
• Half Life of the Doubly-magic r-Process Nucleus 78Ni
• Strong neutrino cooling by cycles of electron capture and ${\beta }^{-}$ decay in neutron star crusts
• Beta-decay half-lives and beta-delayed neutron emission probabilities of nuclei in the region below A=110, relevant for the r-process
• Deformation of the N=Z nucleus 76Sr using beta-decay studies
• Global description of beta-minus decay in even-even nuclei with the axially-deformed Skyrme finite amplitude method
• Beta decay and shape isomerism in 74Kr
• Spin-isospin excitations and beta+/EC half-lives of medium-mass deformed nuclei
• Beta-decay rates of r-process nuclei in the relativistic quasiparticle random phase approximation
• Collectivity-induced quenching of signatures for shell closures
• Neutron-gamma competition for $\beta$-delayed neutron emission
• Beta-decay properties of Zr and Mo neutron-rich isotopes
• First measurement of several $\beta$-delayed neutron emitting isotopes beyond N=126
• Gamow-Teller strength in deformed nuclei within the self-consistent charge-exchange quasi-particle random-phase approximation with the Gogny force
• Beta-decay properties of neutron-rich Ge, Se, Kr, Sr, Ru, and Pd isotopes from deformed quasiparticle random-phase approximation
• $\beta$ Decay and Isomeric Properties of Neutron-Rich Ca and Sc Isotopes
• Total Absorption Gamma-Ray Spectroscopy of 87Br, 88Br and 94Rb Beta-Delayed Neutron Emitters
• Gamow-Teller response in deformed even and odd neutron-rich Zr and Mo isotopes
• Stellar weak decay rates in neutron-deficient medium-mass nuclei
• Nuclear Structure Towards N=40 60Ca: In-beam gamma-ray Spectroscopy of 58,60Ti
• Conceptual design of the BRIKEN detector: A hybrid neutron-gamma detection system for nuclear physics at the RIB facility of RIKEN
• Shape mixing and beta-decay properties of neutron-deficient Kr and Sr isotopes
• Spin-isospin response of deformed neutron-rich nuclei in a self-consistent Skyrme energy-density-functional approach
• Half-lives of rp-process waiting point nuclei
• Weak interaction rates for Kr and Sr waiting-point nuclei under rp-process conditions
• Effects of deformation on the beta-decay patterns of light even-even and odd-mass Hg and Pt isotopes
• Beta decay of Neutron-Rich 53-56Ca
• $\beta$-decay properties for neutron-rich Kr-Tc isotopes from deformed pn-QRPA calculations with realistic forces
• Shapes of the ${}^{192,190}$Pb ground states from beta decay studies using the total absorption technique
• Beta-decay properties of neutron-rich rare-earth isotopes

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• Shell model results for nuclear ${\beta }^{-}$-decay properties of $sd$ shell 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
• Decay properties of undetected superheavy nuclei with Z>110
• $\beta$-decay properties of some astrophysically important Sc-isotopes
• Recent applications of the subtracted second RPA method