33 research outputs found
On the Numerical Solution of the Time-Dependent Schroedinger Equation
An algorithm for the numerical solution of the Schr\"odinger equation in the
case of a time dependent potential is proposed. Our simple modification
upgrades the well known method of Koonin while negligibly increasing the
computing time. In the presented test the accuracy is enhanced by up to an
order of magnitude.Comment: 4 pages, Revtex, Published in J. Comp. Physics 119, (1995) p. 206-20
Alpha-nucleus potential for alpha-decay and sub-barrier fusion
The set of parameters for alpha-nucleus potential is derived by using the
data for both the alpha-decay half-lives and the fusion cross-sections around
the barrier for reactions alpha+40Ca, alpha+59Co, alpha+208Pb. The alpha-decay
half-lives are obtained in the framework of a cluster model using the WKB
approximation. The evaluated alpha-decay half-lives and the fusion
cross-sections agreed well with the data. Fusion reactions between
alpha-particle and heavy nuclei can be used for both the formation of very
heavy nuclei and spectroscopic studies of the formed compound nuclei.Comment: 10 pages, 5 figure