%0 Journal Article %T S_eff(E) and the 7Be(p,gamma)8B reaction %A B. K. Jennings %A S. Karataglidis %J Physics %D 1998 %I arXiv %R 10.1103/PhysRevC.58.3002 %X We explore approximations to the effective $S$ factor for the $^7Be(p,\gamma)^8B$ reaction using different approximation for the integral over the Gamov peak. In the temperature range of interest for solar neutrino production, $S_{eff}(E)$ may be determined to within 0.5% from S(20) with no direct information on the derivatives of S(E). %U http://arxiv.org/abs/nucl-th/9807007v1