The Be7(p,gamma)B8 cross section and the properties of Be7

Details The Be7(p,gamma)B8 cross section and the properties of Be7 The Be7(p,gamma)B8 cross section and the properties of Be7

1994-08-02

arxiv.org/abs/nucl-th/9408001v1

Phys.Rev.C52:1130-1133,1995

Physics

Nuclear Physics

Nuclear Theory

REVTEX, 8 pages and 2 postscript figures. MAP-94

Scientific paper

10.1103/PhysRevC.52.1130

We study the nonresonant part of the $^7$Be($p,\gamma$)$^8$B reaction using a three-cluster resonating group model that is variationally converged and virtually complete in the $^4$He+$^3$He+$p$ model space. The importance of using adequate nucleon-nucleon interaction is demonstrated. We find that the low-energy astrophysical $S$-factor is linearly correlated with the quadrupole moment of $^7$Be. A range of parameters is found where the most important $^7$Be and $^7$Li properties are reproduced simultaneously; the corresponding $S$-factor at $E_{\rm cm}=20$ keV is $24.6-26.1$ eV$\cdot$b.

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