Study of the He3(He4,gamma)Be7 and H3(He4,gamma)Li7 reactions in an extended two-cluster model

Details Study of the He3(He4,gamma)Be7 and H3(He4,gamma)Li7 reactions in an extended two-cluster model Study of the He3(He4,gamma)Be7 and H3(He4,gamma)Li7 reactions in an extended two-cluster model

1999-06-17

arxiv.org/abs/nucl-th/9906053v2

Few Body Syst. 29 (2000) 121-130

Physics

Nuclear Physics

Nuclear Theory

11 pages with 4 figures. The postscript file and more information are available at http://nova.elte.hu/~csoto

Scientific paper

10.1007/s006010070012

The He3(He4,gamma)Be7 and H3(He4,gamma)Li7 reactions are studied in an extended two-cluster model which contains alpha+h/t and Li6+p/n clusterizations. We show that the inclusion of the Li6+p/n channels can significantly change the zero-energy reaction cross sections, S(0), and other properties of the Be7 and Li7 nuclei, like the quadrupole moments Q. However, the results agree with the known correlation trend between S(0) and Q. Moreover, we demonstrate that the value of the zero-energy derivatives of the astrophysical S-factors are more uncertain than currently believed.

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