Reactions of weakly bound projectiles 2H, 9Be and 10B with 197Au targets studied at the Tandem Accelerator of Argentina

D. ABRIOLA; M. ÁLVAREZ; A. ARAZI; M. AVERSA; M.A. CARDONA,; L. CHAMON; E. DE BARBARÁ; J. DE JESÚS; J. FERNÁNDEZ GARCÍA; L. GASQUES; T. GIUDICE,; F. GOLLAN; J. GÓMEZ; D. HOJMAN; R. ID BETAN; M.S. KOHEN,; A. LÉPINE-SZILY; N. LLANEZA; J. LUBIAN; G.V. MARTÍ; B. PAES; A. PACHECO; M. RODRÍGUEZ GALLARDO; V. SCARDUELLI; D. SCHNEIDER; H. SOLER; V. ZAGATTO

Niteroi (Rio de Janeiro)

Simposio; INCT-FNA Symposium 2022; 2022

Universidad Federal Fluminense

Understanding how the breakup process affects the fusion cross section is crucial to know the reaction rate of radioactive nuclei in stellar environments. Even if experiments with radioactive beam are being done since many years ago, systematic studies with stable weakly bound projectiles can also shed light on the effect of the breakup process on other reaction channels. Here, we will present a series of experiments performed at the 20 UD TANDAR Accelerator with stable weakly bound projectiles aiming to understand how the breakup process affects their elastic scattering, transfer and fusion cross sections. These experiments include online detection of (in)elastically scattered products, offline detection of beta-delayed gamma rays after transfer and (in)complete fusion-evaporation processes, and detection in kinematic coincidence of breakup fragments. In particular, we will focus on the 10B + 197Au system [1,2], recently studied in collaboration with the universities of Sao Paulo (Brazil) and Seville (Spain), and on 9Be [3,4] and 2H [5] + 197Au, in collaboration with the universities Federal Fluminense (Brazil) and Rosario (Argentina). Planed studies for the 6,7Li + 196Pt will be also commented. References[1] Aversa, Martín et al. “Investigation of the fusion process for 10B + 197Au at near-barrier energies”, Phys. Rev. C101 (2020) 064601, https://doi.org/10.1103/PhysRevC.101.044601.[2] Gasques, Leandro R. et al. , “Investigation of the reaction mechanisms for 10B + 197Au at near-barrier energies”, Phys. Rev. C101 (2020) 044604, https://doi.org/ 10.1103/PhysRevC.101.044604. [3] Gollan, Fernando et al. “Energy dependence of the optical potential of the weakly bound 9Be projectile on the 197Au target”, Nucl. Phys. A1000 (2020) 121789, https://doi.org/10.1016/j.nuclphysa.2020.121789.[4] Gollan, Fernando et al. “One-neutron transfer,complete fusion, and incomplete fusion from the 9Be + 197Au”, Phys. Rev. C104 (2021) 024609, https://doi.org/10.1103/PhysRevC.104.024609.[5] Giudice, Tomás et al. “Study of the threshold anomaly in the elastic scattering of d + 197Au” submitted to Nucl. Phys. A.