A NEW APPROACH TO A MODEL-INDEPENDENT OPTICAL-POTENTIAL AND ITS APPLICATION TO PROTON ELASTIC-SCATTERING NEAR THE (P,N) THRESHOLD ENERGY REGION

Authors
AOKI Y HIROTA K KISHITA H KOYAMA K MASAKI M MIURA K MUKOUHARA Y NAKAGAWA S OKUMURA N TAGISHI Y
Citation
Y. Aoki et al., A NEW APPROACH TO A MODEL-INDEPENDENT OPTICAL-POTENTIAL AND ITS APPLICATION TO PROTON ELASTIC-SCATTERING NEAR THE (P,N) THRESHOLD ENERGY REGION, Nuclear physics. A, 599(3-4), 1996, pp. 417-434
Citations number
21
Categorie Soggetti
Physics, Nuclear
Journal title
Nuclear physics. A → ACNP
ISSN journal
03759474
Volume
599
Issue
3-4
Year of publication
1996
Pages
417 - 434
Database
ISI
SICI code
0375-9474(1996)599:3-4<417:ANATAM>2.0.ZU;2-C
Abstract
A new approach to a ''model-independent'' optical potential is propose d, which features the adaptive improvement of expansion base and pract ical estimation of the errors of the derived potential. The energy dep endence of differential cross sections and analyzing powers were measu red for proton elastic scattering from Si-28 and Ca-40 near the (p,n) reaction threshold energy. The method is applied to analyze these data . Absorption of incident flux is discussed and the absorption radius i s defined. A resonance-like energy dependence of the absorption radius is found near the (p,n) reaction threshold.