Two-proton radioactivity within Coulomb and proximity potential model

Abstract

Considering the preformation probability of the two emitted protons in the parent nucleus, we extend the Coulomb and proximity potential model (CPPM) to systematically study two-proton (2p) radioactivity half-lives of the nuclei close to proton drip line. The proximity potential chosen is Prox. 81 proposed by Blocki et al. in 1981. Furthermore, we apply this model to predict the half-lives of possible 2p radioactive candidates whose 2p radioactivity is energetically allowed or observed but not yet quantified in the evaluated nuclear properties table NUBASE2016. The predicted results are in good agreement with those from other theoretical models and empirical formulas, namely the effective liquid drop model (ELDM), generalized liquid drop model (GLDM), Gamow-like model, Sreeja formula and Liu formula.

References in corpus (31)

• Radioactive decays at limits of nuclear stability
• Comparison of different proximity potentials for asymmetric colliding nuclei
• First observation of 54Zn and its decay by two-proton emission
• Two-proton radioactivity
• A systematic study of the fusion barriers using different proximity type potentials for $N=Z$ colliding nuclei : New extensions
• Proton radioactivity within a generalized liquid drop model
• On the discovery of doubly-magic ${}^{48}$Ni
• Theory of the two-proton radioactivity in the continuum shell model
• Three-body continuum states on a Lagrange mesh
• Proton spectroscopy of 48Ni, 46Fe, and 44Cr
• Cluster decay half lives of trans-lead nuclei within the Coulomb and proximity potential model
• Gamow and R-matrix Approach to Proton Emitting Nuclei
• Two-proton radioactivity and three-body decay. III. Integral formulae for decay widths in a simplified semianalytical approach
• The landscape of two-proton radioactivity
• Systematic study of $\alpha$ decay of nuclei around $\mathbf{Z}=82$, $\mathbf{N}=126$ shell closure within the cluster-formation model and proximity potential 1977 formalism
• Two-proton radioactivity within a generalized liquid drop model
• New Geiger-Nuttall law for proton radioactivity
• Algebraic Model for scattering of three-s-cluster systems. II. Resonances in the three-cluster continuum of 6He and 6Be
• Heavy particle radioactivity from superheavy nuclei leading to ${}^{298}$114 daughter nuclei
• Momentum distributions of $\alpha$-particles from decaying low-lying ${}^{12}$C-resonances
• Proton radioactivity described by covariant density functional theory with Similarity Renormalization Group method
• Systematic study of α decay using different versions of proximity formalism
• Systematic study of heavy cluster emission from {210-226}^Ra isotopes
• Systematic study of proton radioactivity of spherical proton emitters within various versions of proximity potential formalisms
• Structure and three-body decay of ${}^9$Be resonances
• The competition between alpha decay and spontaneous fission in odd-even and odd-odd nuclei in the range 99 \leg Z \leg 129
• α-accompanied cold ternary fission of ${}^{238-244}$Pu isotopes in equatorial and collinear configuration
• Heavy-ion fusion cross sections of weakly bound ${}^9$Be on ${}^{27}$Al, ${}^{64}$Zn and tightly bound ${}^{16}$O on ${}^{64}$Zn target using Coulomb and proximity potential
• The emission probabilities of long range alpha particles from even-even 244-252Cm isotopes
• Necessary conditions for accurate computations of three-body partial decay widths
• The effect of single-particle space-momentum angle distribution on two-pion HBT correlation in relativistic heavy-ion collisions by using a multiphase transport model

Cited by in corpus (1)

• Deformation dependence of 2p-radioactivity half-lives: Probe with a new formula across the mass region with Z<82