In:
International Journal of Modern Physics E, World Scientific Pub Co Pte Ltd, Vol. 13, No. 03 ( 2004-06), p. 585-595
Abstract:
Excitation functions for the reactions (α,2n), (α,αn), (α,α2n), (α,α3n) and (α,2pn) have been measured using 57 Co as a target up to 50 MeV α-particle energy. The stacked foil activation technique and γ-ray spectroscopy method has been employed. Measured excitation functions are compared with the geometry dependent hybrid (GDH) model. A comparison shows that the pure equilibrium (EQ) compound reaction mechanism is incapable of reproducing the experimental data while the pre-equilibrium (PE) reaction mechanism along with equilibrium (EQ) decay, where it is considered that pre-equilibrium emission of particles take place prior to the establishment of the thermodynamical equilibrium of the system, is able to reproduce the experimental data. The GDH model code ALICE-91 has been used for theoretical calculations. A value of initial exciton number n 0 =4 with configuration (2 neutron + 2 proton + 0 hole) has been found to give the satisfactory reproduction of experimental excitation functions.
Type of Medium:
Online Resource
ISSN:
0218-3013
,
1793-6608
DOI:
10.1142/S0218301304002405
Language:
English
Publisher:
World Scientific Pub Co Pte Ltd
Publication Date:
2004
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