O-18-induced single-nucleon transfer reactions on Ca-40 at 15.3A MeV within a multichannel analysis

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Calabrese, S. ^{[1, 2]} ; Cavallaro, M. ^[1] ; Carbone, D. ^[1] ; Cappuzzello, F. ^{[1, 2]} ; Agodi, C. ^[1] ; Burrello, S. ^{[3, 4]} ; De Gregorio, G. ^{[5, 6]} ; Ferreira, J. L. ^[7] ; Gargano, A. ^[5] ; Sgouros, O. ^[1] ; Acosta, L. ^{[8, 9]} ; Amador-Valenzuela, P. ^[10] ; Bellone, J. I. ^[1] ; Borello-Lewin, T. ^[11] ; Brischetto, G. A. ^{[1, 2]} ; Calvo, D. ^[12] ; Capirossi, V. ^{[12, 13]} ; Lomeli, E. R. Chavez ^[9] ; Ciraldo, I. ^{[1, 2]} ; Colonna, M. ^[1] ; Delaunay, F. ^{[1, 2, 14]} ; Djapo, H. ^[15] ; Eke, C. ^[16] ; Finocchiaro, P. ^[1] ; Firat, S. ^[17] ; Fisichella, M. ^[1] ; Foti, A. ^[8] ; Guazzelli, M. A. ^[18] ; Hacisalihoglu, A. ^[19] ; Iazzi, F. ^{[12, 13]} ; La Fauci, L. ^{[1, 2]} ; Lay, J. A. ^{[4, 20]} ; Linares, R. ^[7] ; Lubian, J. ^[7] ; Medina, N. H. ^[11] ; Moralles, M. ^[21] ; Oliveira, J. R. B. ^[11] ; Pakou, A. ^{[22, 23]} ; Pandola, L. ^[1] ; Petrascu, H. ^[24] ; Pinna, F. ^{[12, 13]} ; Russo, G. ^[8] ; Solakci, S. O. ; Soukeras, V. ^{[1, 2]} ; Souliotis, G. ^{[25, 26]} ; Spatafora, A. ^{[1, 2]} ; Torresi, D. ^[1] ; Tudisco, S. ^[1] ; Yildirim, A. ^[17] ; Zagatto, V. A. B. ^[7] ; Collaboration, NUMEN

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^[1] Ist Nazl Fis Nucl, Lab Nazl Sud, Catania - Italy

^[2] Univ Catania, Dipartimento Fis & Astron Ettore Majorana, Catania - Italy

^[3] Tech Univ Darmstadt, Inst Kernphys, Darmstadt - Germany

^[4] Univ Seville, Dept Fis Atom Mol & Nucl, Seville - Spain

^[5] Ist Nazl Fis Nucl, Sez Napoli, Naples - Italy

^[6] Univ Campania Luigi Vanvitelli, Dipartimento Matemat & Fis, Caserta - Italy

^[7] Univ Fed Fluminense, Inst Fis, Niteroi, RJ - Brazil

^[8] Ist Nazl Fis Nucl, Sez Catania, Catania - Italy

^[9] Univ Nacl Autonoma Mexico, Inst Fis, Mexico City, DF - Mexico

^[10] Inst Nacl Invest Nucl, Dept Aceleradores & Estudio Mat, Ocoyoacac - Mexico

^[11] Univ Sao Paulo, Inst Fis, Sao Paulo - Brazil

^[12] Ist Nazl Fis Nucl, Sez Torino, Turin - Italy

^[13] Politecn Torino, DISAT, Turin - Italy

^[14] Normandie Univ, CNRS, IN2P3, LPC Caen, ENSICAEN, UNICAEN, Caen - France

^[15] Ankara Univ, Inst Accelerator Technol, Ankara - Turkey

^[16] Akdeniz Univ, Dept Math & Sci Educ, Antalya - Turkey

^[17] Akdeniz Univ, Dept Phys, Antalya - Turkey

^[18] Ctr Univ FEI, Sao Bernardo Do Campo - Brazil

^[19] Karadeniz Tech Univ, Inst Nat Sci, Trabzon - Turkey

^[20] Inst Interuniv Carlos I Fis Teor & Computac iC1, Seville - Spain

^[21] Inst Pesquisas Energet & Nucl IPEN, CNEN, Sao Paulo - Brazil

^[22] Univ Ioannina, Dept Phys, Ioannina - Greece

^[23] Hellen Inst Nucl Phys, Ioannina - Greece

^[24] Inst Natl Pentru Fiz Ingn Nucl Horia Hulubei, Bucharest - Romania

^[25] Univ Athens, Dept Chem, Athens - Greece

^[26] Hellen Inst Nucl Phys, Athens - Greece

• Tipo de documento: Artigo Científico
• Fonte: Physical Review C; v. 104, n. 6 DEC 10 2021.
• Citações Web of Science: 0

Resumo

Background: Nucleon transfer reactions are selective tools for nuclear physics investigations. The theoretical and computational limits affecting in the past their data analysis could be nowadays surmounted thanks to the advent of methods with refined approximations and constraints, even when heavy-ion collisions are considered. Purpose: Modern microscopic calculations of heavy-ion-induced transfer reactions combined with precise experimental data offer the chance for accurately testing different reaction models as well as the nuclear structure description of the involved nuclear states. Method: Single proton and neutron transfer reactions were measured with the MAGNEX magnetic spectrometer for the O-18 + Ca-40 system at 15.3A MeV. Excitation energy spectra and angular differential cross section distributions were extracted. The experimental results are compared with theoretical calculations performed in distorted wave and coupled channel Born approximation. The use of a coupled channel equivalent polarization potential to effectively describe the coupling effects affecting the initial state interaction is also considered. Spectroscopic amplitudes derived from a large-scale shell model with appropriate interactions adapted for the involved nuclei are employed. Results: Our theoretical calculations are in good agreement with experimental data, without the need for any scaling factor, validating the adopted reaction and nuclear structure parameters. Moreover, under the present experimental conditions, a weak dependence of the obtained results on the choice of the reaction models was observed. Conclusions: The good agreement between experimental and theoretical results validates the reliability of the parameter sets entering the calculations. They are extracted from or tested in complementary analyses of other reaction channels under the same experimental conditions. Such a multichannel approach represents the best option to pursue a solid, comprehensive, and model-independent description of the single-nucleon transfer reactions. The successful description of the present one-nucleon transfer data is also propaedeutic to the accurate assessment, under the same theoretical description, of higher-order transfer processes, like the sequential nucleon transfer mechanisms which are in competition with the direct charge exchange reactions. (AU)

• Processo FAPESP: 19/07767-1 - Reações nucleares com núcleos fracamente ligados ou com estrutura de cluster, radioativos e estáveis
• Beneficiário: Leandro Romero Gasques
• Modalidade de apoio: Auxílio à Pesquisa - Temático