A 2− level of 8B and the 7Be(p,γ)8B S factor Original Research Article

A 2− level at 3.0 MeV in 8B has been suggested from View the MathML source elastic scattering measurements. The effect of such a level on the low-energy View the MathML source factor is discussed, using R-matrix formulae with parameter values chosen to fit View the MathML source data. It is concluded that the level must be broad (Γ0≥4 MeV).