Skip to Main content Skip to Navigation
Journal articles

Assault frequency and preformation probability of the alpha emission process

Abstract : A study of the assault frequency and preformation factor of the α-decay description is performed from the experimental α-decay constant and the penetration probabilities calculated from the generalized liquid-drop model (GLDM) potential barriers. To determine the assault frequency a quantum-mechanical method using a harmonic oscillator is introduced and leads to values of around 1021 s−1, similar to the ones calculated within the classical method. The preformation probability is around 10−1-10−2. The results for even-even Po isotopes are discussed for illustration. While the assault frequency presents only a shallow minimum in the vicinity of the magic neutron number 126, the preformation factor and mainly the penetrability probability diminish strongly around N=126.
Document type :
Journal articles
Complete list of metadatas

Cited literature [13 references]  Display  Hide  Download
Contributor : Dominique Girod <>
Submitted on : Thursday, November 3, 2011 - 1:58:53 PM
Last modification on : Tuesday, February 11, 2020 - 10:26:05 AM
Long-term archiving on: : Sunday, December 4, 2016 - 9:19:38 AM


Files produced by the author(s)



H.F. Zhang, G. Royer, J.Q. Li. Assault frequency and preformation probability of the alpha emission process. Physical Review C, American Physical Society, 2011, 84, pp.027303. ⟨10.1103/PhysRevC.84.027303⟩. ⟨in2p3-00637971⟩



Record views


Files downloads