Evidence of the effect of strong stripping channels on the dynamics of the Li8+Ni58 reaction

O. C. B. Santos, R. Lichtenthäler, K. C. C. Pires, U. Umbelino, E. O. N. Zevallos, A. L. de Lara, A. S. Serra, V. Scarduelli, J. Alcántara-Núñez, V. Guimarães, A. Lépine-Szily, J. C. Zamora, A. M. Moro, S. Appannababu, M. Assunção, A. Barioni, R. Linares, V. A. B. Zagatto, P. N. de Faria, M. C. Morais, V. Morcelle, J. M. B. Shorto, and Jin Lei
Phys. Rev. C 103, 064601 – Published 1 June 2021

Abstract

The Li8+Ni58 collision is investigated at 23.9, 26.1, 28.7, and 30 MeV bombarding energies. Quasielastic angular distributions and the singles Li7 angular and energy distributions are presented. Coupled-reaction channels (CRC) calculations, which include the coupling of the elastic channel to Ni59=Ni58+n states above and below the neutron threshold, provide a simultaneous description of the quasielastic and transfer distributions and evidence the strong effect of the one-neutron transfer/breakup channels on the quasielastic scattering. The Li7 angular and energy distributions have been also successfully analyzed combining the continuum discretized coupled channels (CDCC) method, for the elastic breakup, and the IAV model of Ichimura, Austern, and Vincent [Phys. Rev. C 32, 431 (1985)], for the nonelastic breakup. These calculations indicate that most of the Li7 yields are due to nonelastic breakup contributions (transfer), whereas elastic breakup plays a minor role.

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  • Received 30 December 2020
  • Revised 4 March 2021
  • Accepted 6 May 2021

DOI:https://doi.org/10.1103/PhysRevC.103.064601

©2021 American Physical Society

Physics Subject Headings (PhySH)

Accelerators & BeamsNuclear Physics

Authors & Affiliations

O. C. B. Santos*, R. Lichtenthäler, K. C. C. Pires, U. Umbelino, E. O. N. Zevallos, A. L. de Lara, A. S. Serra, V. Scarduelli, J. Alcántara-Núñez, V. Guimarães, A. Lépine-Szily, and J. C. Zamora

  • Departamento de Física Nuclear, Instituto de Física, Universidade de São Paulo, 05508-090 São Paulo, Brazil

A. M. Moro

  • Departamento de Física Atómica, Molecular y Nuclear, Facultad de Física, Universidad de Sevilla, Apartado 1065, E-41080 Sevilla, Spain and Instituto Interuniversitario Carlos I de Física Teórica y Computacional (iC1), Apartado 1065, E-41080 Sevilla, Spain

S. Appannababu

  • Department of Nuclear Physics, Andhra University, Visakhapatnam 530 003, India

M. Assunção

  • Departamento de Física, Universidade Federal de São Paulo, UNIFESP, 09913-030 Diadema, Brazil

A. Barioni

  • Departamento de Ciências do Mar, Universidade Federal de São Paulo, UNIFESP, 11070-100 São Paulo, Brazil

R. Linares, V. A. B. Zagatto, and P. N. de Faria

  • Departamento de Física, Universidade Federal Fluminense do Rio de Janeiro, 24210-340 Rio de Janeiro, Brazil

M. C. Morais

  • INFES, Universidade Federal Fluminense, Santo Antônio de Pádua, 28470-000 Rio de Janeiro, Brazil

V. Morcelle

  • Universidade Federal Rural do Rio de Janeiro, Seropédica, 23890-000 Rio de Janeiro, Brazil

J. M. B. Shorto

  • Instituto de Pesquisas Energéticas e Nucleares, IPEN-CNEN/SP, 05508-000 São Paulo, Brazil

Jin Lei

  • Istituto Nazionale di Fisica Nucleare, Sezione di Pisa, Largo Pontecorvo 3, 56127 Pisa, Italy

  • *osvaldo.santos@usp.br
  • rubens@if.usp.br

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Issue

Vol. 103, Iss. 6 — June 2021

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