Eur. Phys. J. A (2009) 42: 179-184
https://doi.org/10.1140/epja/i2009-10873-7

Regular Article - Experimental Physics

Elastic scattering of neutrons on ^natPb at forward angles

¹ Instituto de Física, Universidad Nacional Autónoma de México, Ap. Po. 20-364, Del A. Obregón D. F., Mexico
² Instituto Nacional de Investigaciones Nucleares, Departamento de Aceleradores, CP 52045, Salazar, Edo. Méx., Mexico

^* e-mail: chavez@fisica.unam.mx

Received: 10 June 2009
Revised: 31 August 2009
Accepted: 10 September 2009
Published online: 16 October 2009

Abstract

Angular distributions were measured for neutron elastically scattered by ^natPb at 2.9, 3.0, 3.1, 3.2 and 3.4MeV at very forward angles. The mono-energetic neutron flux was produced at the tandem accelerator facility of the National Institute of Nuclear Research (ININ), Mexico, using the Associated Particle Technique (APT) in the D(d, n)³He reaction. Optical model predictions with best potential systematic show a fairly good agreement with our data, and also the need for a better understanding of the neutron scattering process at very small angles from the theoretical point of view.