Open Access
ND 2007
Article Number 041
Number of page(s) 4
Section Theoritical studies
Published online 17 June 2008
International Conference on Nuclear Data for Science and Technology 2007
DOI: 10.1051/ndata:07455

Effects of direct reaction coupling in compound reactions

T. Kawano1, L. Bonneau1 and A.K. Kerman2

1  Los Alamos National Laboratory, Los Alamos, NM 87545, USA
2  Massachusetts Institute of Technology, Cambridge, MA 02139, USA

Published online: 21 May 2008

The Hauser-Feshbach (HF) model with width fluctuation correction needs to be modified when strongly coupled direct reaction channels exist. We perform cross section calculations for compound reactions which include strongly coupled channels (direct), based on the Kawai-Kerman-McVoy (KKM) theory. In KKM the cross sections are expressed in terms of channel matrix, which is given by the coupled-channels method. Numerical calculations are given for the 238U elastic scattering cross sections, and the elastic enhancement factor. It is shown that the compound elastic cross sections are affected by the direct channels when the coupling is strong.

© CEA 2008