Optical Model And Cross Section Uncertainties

Free access article

Issue		EPJ Web of Conferences Volume 2, 2010 CNR*09 - Second International Workshop on Compound Nuclear Reactions and Related Topics


Article Number		01005
Number of page(s)		4
Section		Optical Model Calculations
DOI		10.1051/epjconf/20100201005
Published online		09 March 2010

EPJ Web of Conferences 2, 01005 (2010)

Optical Model And Cross Section Uncertainties

M. Herman¹^a, M. T. Pigni¹, F. S. Dietrich² and P. Obložinský¹

¹ National Nuclear Data Center, Brookhaven National Laboratory, Upton, NY 11973-5000, U.S.A.
² Nuclear Theory & Modeling Group, Lawrence Livermore National Laboratory, Livermore, CA 94551, U.S.A.

^a e-mail: mwherman@bnl.gov

Abstract

Distinct minima and maxima in the neutron total cross section uncertainties were observed in model calculations using spherical optical potential. We found this oscillating structure to be a general feature of quantum mechanical wave scattering. Specifically, we analyzed neutron interaction with ⁵⁶Fe from 1 keV up to 65 MeV, and investigated physical origin of the minima. We discuss their potential importance for practical applications as well as the implications for the uncertainties in total and absorption cross sections.

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