Direct fusion measurement of the 8B proton-halo nucleus at near-barrier energies

Autor: J.C. Zamora, V. Guimaraes, G.V. Rogachev, S. Ahn, J. Lubian, E.N. Cardozo, E. Aboud, M. Assuncao, M. Barbui, J. Bishop, A. Bosh, J. Hooker, C. Hunt, H. Jayatissa, E. Koshchiy, S. Lukyanov, R. O'Dwyer, Y. Penionzhkevich, B.T. Roeder, A. Saastamoinen, S. Upadhyayula
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Physics Letters B, Vol 816, Iss , Pp 136256- (2021)
Druh dokumentu: article
ISSN: 0370-2693
DOI: 10.1016/j.physletb.2021.136256
Popis: Direct measurements of the total fusion cross section for B8+40Ar were achieved with the active target technique. The fusion excitation function was extracted at energies near the Coulomb barrier. The cross section is well described by a coupled reaction channels calculation. The data were compared with previous B8 fusion experiments on Si28 and Ni58 targets. No evidence of striking enhancement of the total fusion cross section at near the Coulomb barrier, that was previously reported for the B8+58Ni system, was observed in these direct measurements. The present data are systematically consistent with the results for B8+28Si at higher energies and with other weakly-bound systems at near-barrier energies.
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