α Decay of High-K Isomers in 270Ds and 266Hs in a Superfluid Tunneling Model

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

Abstract

We use the superfluid tunneling model (STM) to calculate the half-lives of ground-state α decays of even-even superheavy nuclei (SHN) with Z≥100. The experimental data are reproduced to accuracies comparable to other contemporary models of α decay of SHN. We apply the STM to the case of the α decaying high-K isomers identified in the decay chains of 270Ds. By accounting for the α-decay Q values, Qα, the angular momentum difference between initial and final states, L, and a reduction in the pairing gap, Δ, we are able to reproduce the observed α decay of the isomers, including the unusual competition between L≈10 and L≈0 α branches seen for the K isomer in 270Ds (Z=110).

Detaljer

Författare
Enheter & grupper
Externa organisationer
  • Lawrence Berkeley National Laboratory
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Subatomär fysik

Nyckelord

Originalspråkengelska
Artikelnummer024333
Antal sidor6
TidskriftPhysical Review C
Volym97
Utgåva nummer2
StatusPublished - 2018 feb 26
PublikationskategoriForskning
Peer review utfördJa

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Clark, R. M., Crawford, H. L., Macchiavelli, A. O., D. Rudolph, A. Såmark-Roth, Campbell, C. M., Cromaz, M., Fallon, P., Morse, C. & Santamaria, C., 2019 feb 28, I : Physical Review C. 99, 2, 6 s., 024325.

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

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