Open AccessDecaimento Alpha: Uma Abordagem Por Tunelamento Quântico
Author(s) -
Daniel Borges Silva,
Francisco Florêncio Batista Júnior
Publication year - 2019
Publication title -
principia/revista principia
Language(s) - English
Resource type - Journals
eISSN - 2447-9187
pISSN - 1517-0306
DOI - 10.18265/1517-03062015v1n46p99-110
Subject(s) - wkb approximation , physics , alpha decay , quantum tunnelling , coulomb , quantum mechanics , quantum , alpha particle , atomic nucleus , alpha (finance) , electron , mathematics , statistics , construct validity , psychometrics
The present work sought to deduce the alpha decay theory based on quantum tunneling and using approximations in the resolution of the Schrödinger equation for Coulomb potential. It was possible to find the alpha decay constant analytically. One of the approaches used was the WKB method for solving differential equations, by which the Gamow factor was reached. From this point on, it was possible to identify the dependence of the decay rate with the energy of the radiation, as well as the atomic number. Besides that, we could understand the behavior of the tunneling probability with respect to some variables such as emitted particle energy and atomic number of the nucleus that decays. With this research we can help researchers in general in the study of alpha radiation.