EPJ Web Conf.
Volume 227, 202010th European Summer School on Experimental Nuclear Astrophysics
|Number of page(s)||8|
|Section||Session 1: Lectures|
|Published online||14 January 2020|
Post-formation in alpha emission from nuclei
1 Institut für Kernphysik, Technische Universität Darmstadt, Darmstadt 64289, Germany
2 Department of Physics and Astronomy, Texas A & M University-Commerce, Commerce Texas, 75429, USA
3 GSI Helmholtz Center for Heavy Ion Research GmbH, Darmstadt 64291, Germany
Published online: 14 January 2020
We propose a novel mechanism to explain nuclear decay by emission of an alpha particle. We show that the famous Geiger-Nuttall law can be explained by post-forming an alpha particle outside the range of the nuclear interaction with the daughter nucleus. This contrasts with the commonly ac- cepted mechanism of first alpha particle pre-formation followed by emission through barrier penetration. We predict that the post-formation mechanism is more likely to occur for a-particles with higher energy.
© The Authors, published by EDP Sciences, 2020
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