Study of the interaction of mass A=8 nuclei with carbon target and of the capture reaction 8Li(p,y)9Be of astrophysical interest / Estudo da interação de núcleos de massa A=8 com alvo de carbono e da reação de captura 8Li(p,)9Be de interesse astrofísico

AUTOR(ES)
DATA DE PUBLICAÇÃO

2009

RESUMO

The measurements of the angular distributions for the elastic scatterings 12C(Li,Li) and 12C(8B,8B) reported in this work have been done in two laboratories. Those corresponding to the angular distributions for the elastic scattering 12C(8Li,8Li) were performed at two ene&ies, 20.6 MeV and 23.9 MeV, at the Pelletron Laboratory of the University of São Paulo. The *Li beam used in this laboratory had been produced in the RIBRASsystem. The measurements of angular distribution for the elastic scattering 12C(B,B) were performed at the Nuclear Structure Laboratory, at the University of Notre Dame, in the United States of America. The B beam was produced by the Twinsol system, at 25.8 MeV. The results obtained for total reaction cross section were included in a systematicstogether with other stable and exotic weakly bound nuclei and also with tightly bound ones, elastically scattered by 12C target. The data obtained from the literature were re-analised on the same framework of the data of this work. The reaction cross sections were obtained by fitting to the data, the cross sections calculated with the São Paulo potential. From the analysis one could conclude that no increase was observed in the total reaction cross section for the studied systems, indicating that effects, such as breakup, are not important for this system.

ASSUNTO(S)

taxa de reação reaction rate espalhamento nuclear physics astrophysics feixes radioativos reações nucleares astrofísica nuclear reactions radioactive beams física nuclear scattering

ACESSO AO ARTIGO

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