Advanced search
Start date
Betweenand
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Role of inelastic couplings in He-4+Pb-208 elastic scattering in a wide energy range

Full text
Author(s):
Chamon, L. C. [1] ; Gasques, L. R. [1] ; Zamora, J. C. [1]
Total Authors: 3
Affiliation:
[1] Univ Sao Paulo, Inst Fis, Rua Matao 1371, BR-05508090 Sao Paulo, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS; v. 49, n. 3 MAR 1 2022.
Web of Science Citations: 0
Abstract

The phenomenological strengths of the real part of the optical potential, obtained from elastic scattering data analyses within the optical model (OM) approach, present significant energy-dependence. This behavior has been associated with the intrinsic energy-dependence of the effective nucleon-nucleon interaction. However, in earlier works, we proposed that at least part of this dependence can arise from the effect of couplings to inelastic states of the nuclei. In order to deepen this study, in this paper we present extensive data analyses for the elastic scattering and inelastic excitation of 111 states of Pb-208, for the He-4 + Pb-208 system in a wide energy range. For the purpose of comparison, the theoretical cross sections are obtained using different approaches for the imaginary part of the potential, and within both contexts: OM (distorted wave Born approximation) and coupled-channel calculations. (AU)

FAPESP's process: 18/04965-4 - Study of structure and nuclear reactions induced by exotic nuclei using active targets
Grantee:Juan Carlos Zamora Cardona
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 19/05769-7 - Implantation of a new acquisition system for exclusive measurements of nuclear physics with weakly bound nuclei
Grantee:Valdir Brunetti Scarduelli
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 18/09998-8 - Towards a modern array of particle detectors: a versatile tool for nuclear reaction studies
Grantee:Leandro Romero Gasques
Support type: Regular Research Grants
FAPESP's process: 19/07767-1 - Nuclear reactions with weakly-bound or cluster-structured radioactive and stable nuclei
Grantee:Alinka Lépine
Support type: Research Projects - Thematic Grants