https://doi.org/10.1140/epja/i2005-10142-y
Original Article
New calculations of α-decay half-lives by the Viola-Seaborg formula
1
Department of Physics, Nanjing University, 210008, Nanjing, PRC
2
Center of Theoretical Nuclear Physics, National Laboratory of Heavy-Ion Accelerator, 730000, Lanzhou, PRC
Received:
26
April
2005
Accepted:
11
August
2005
Published online:
21
September
2005
The Viola-Seaborg formula is a well-known formula for α-decay half-lives of heavy nuclei. In this work we obtain new parameters of this formula through a least-square fit to even-even nuclei between Z = 84 and Z = 110 with N greater than 126. On average, the formula can reproduce the half-lives of heavy even-even nuclei within a factor of 1.3. The formula with new parameters works well for the superheavy region which is a hot topic of nuclear physics. The numerical results from the formula are compared with those from the cluster model.
PACS: 27.90.+b A ≥ 220 – / 23.60.+e Alpha decay – / 21.10.Tg Lifetimes –
© Società Italiana di Fisica and Springer-Verlag, 2005
