Electron-capture decay in isotopic transfermium chains from self-consistent calculations

Abstract

Weak decays in heavy nuclei with charge numbers Z=101-109 are studied within a microscopic formalism based on deformed self-consistent Skyrme Hartree-Fock mean-field calculations with pairing correlations. The half-lives of beta+ decay and electron capture are compared with alpha-decay half-lives obtained from phenomenological formulas. Transfermium isotopes of Md, No, Lr, Rf, Db, Sg, Bh, Hs, and Mt that can be produced in the frontier of cold and hot fusion-evaporation channels are considered. Several isotopes are identified whose beta+/EC- and alpha-decay half-lives are comparable. The competition between these decay modes opens the possibility of new pathways towards the islands of stability.

arXiv comment14 pages, 10 figures, accepted for publication in Journal of Physics G

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Cited by in corpus (5)

• Finite-nuclear-size effect in hydrogen-like ions with relativistic nuclear structure
• Self-consistent calculations of electron-capture decays in Z=118, 119, and 120 superheavy isotopes
• Competition between weak and alpha-decay modes in superheavy nuclei
• Decay properties of undetected superheavy nuclei with Z>110
• Finite-nuclear-size effect for hydrogenlike ions under high external pressure