DOI: 10.1140/epja/i2001-10213-1
Shrinking
as a recipe for revealing classical-like
properties of optical-potential cross-sections
R. Anni Dipartimento di Fisica, Università di Lecce and Istituto Nazionale di Fisica Nucleare, Sezione di Lecce, I-73100 Lecce, Italy anni@le.infn.it
(Received: 4 September 2001 / Revised version: 25 February 2002 / Published online: 26 November 2002)
Abstract
A simple recipe for revealing classical-like properties of optical-potential cross-sections is proposed.
The recipe is based on the fact that the classical properties are
not expected to depend on the actual value of
.
This allows us to identify the classical-like characteristics of an
optical-potential cross-section by simply repeating the calculation with
different values of
, and observing which properties of the cross-section are invariant.
The method is applied to the cross-sections of a few optical
potentials used to describe the recent data of light heavy-ion elastic
scattering. An improved near-side/far-side decomposition is used to separate
the near-side and far-side components of the optical-potential cross-sections.
24.10.Ht - Optical and diffraction models.
25.70.Bc - Elastic and quasielastic scattering.
03.65.Sq - Semiclassical theories and applications.
© Società Italiana di Fisica, Springer-Verlag 2002
