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Reaction mechanism for 8B+ natZr at the sub-Coulomb energy of 26.5 MeV

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Published: Feb 24, 2026
DOI: https://doi.org/10.12681/hnpsanp.8668
Keywords:
exotic nuclei total reaction cross section Elastic scattering breakup
Konstantina Palli
Department of Physics, The University of Ioannina, 45110 Ioannina, Greece / Department of Chemistry, National and Kapodistrian University of Athens, 15771 Athens, Greece
https://orcid.org/0000-0002-3906-0292
Athina Pakou
Department of Physics, The University of Ioannina, 45110 Ioannina, Greece
Antonio Moro
Departamento de Física Atómica, Molecular y Nuclear, Universidad de Sevilla, Apartado 1065, E-41080 Sevilla, Spain / Instituto Interuniversitario Carlos I de Física Teórica y Computational (iC1), Apartado. 1065, E-41080 Sevilla, Spain
Patrick O'Malley
Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556, USA
Luis Acosta
Instituto de Física, Universidad Nacional Autónoma de México, A.P. 20-364, México City 01000, México
Angel Sánchez-Bénitez
Departamento de Ciencias Integradas y Centro de Estudios Avanzados en Física, Matemáticas y Computatión, Universidad de Huelva, 21071 Huelva, Spain
George Souliotis
Department of Chemistry, National and Kapodistrian University of Athens, 15771 Athens, Greece
Eli Aguilera
Departamento de Aceleradores y Estudio de Materiales, Instituto Nacional de Investigaciones Nucleares, Apartado Postal 18-1027, Codigo Postal 11801, Mexico City, Distrito Federal, Mexico
Eduardo Andrade
Departamento de Aceleradores y Estudio de Materiales, Instituto Nacional de Investigaciones Nucleares, Apartado Postal 18-1027, Codigo Postal 11801, Mexico City, Distrito Federal, Mexico
David Godos
Instituto de Física, Universidad Nacional Autónoma de México, A.P. 20-364, México City 01000, México
Onoufrios Sgouros
INFN Laboratori Nazionali del Sud, via Santa Sofia 62, 95125 Catania, Italy / Dipartimento di Fisica e Astronomia “Ettore Majorana”, Universita di Catania, via Santa Sofia 64, 95125 Catania, Italy
Vasileios Soukeras
INFN Laboratori Nazionali del Sud, via Santa Sofia 62, 95125 Catania, Italy / Dipartimento di Fisica e Astronomia “Ettore Majorana”, Universita di Catania, via Santa Sofia 64, 95125 Catania, Italy
Clementina Agodi
INFN Laboratori Nazionali del Sud, via Santa Sofia 62, 95125 Catania, Italy
Thomas Bailey
Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556, USA
Dan Bardayan
Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556, USA
Chevelle Boomershine
Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556, USA
Maxime Brodeur
Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556, USA
Francesco Cappuzello
INFN Laboratori Nazionali del Sud, via Santa Sofia 62, 95125 Catania, Italy / Dipartimento di Fisica e Astronomia “Ettore Majorana”, Universita di Catania, via Santa Sofia 64, 95125 Catania, Italy
Scott Caramichael
Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556, USA
Manuela Cavallaro
INFN Laboratori Nazionali del Sud, via Santa Sofia 62, 95125 Catania, Italy
Stefania Dede
Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556, USA / Cyclotron Institute, Texas A&M University, College Station, Texas 77843, USA
Jose Duenas
Centro de Estudios Avanzados en Física, Matemáticas y Computatión, Universidad de Huelva, 21071 Huelva,Spain
Joseph Henning
Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556, USA
Kevin Lee
Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556, USA
William Porter
Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556, USA
Fabio Rivero
Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556, USA
William von Seeger
Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556, USA
Abstract

The reaction mechanism of 8B + natZr below the Coulomb barrier, was studied via elastic scattering and breakup measurements at 26.5 MeV (90% of the Coulomb barrier), at the TriSol radioactive beam facility of the University of Notre Dame. From these measurements, total reaction and breakup cross sections were extracted, and the direct-to-total ratio revealed the dominance of the breakup channel. To further probe the mechanism, critical interaction distances were determined and compared with existing results for weakly and well-bound projectiles on various targets as a function of ZpZt . Finally, reduced total and breakup cross sections were obtained and compared among themselves.

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