New result for the [formula omitted]Bγ astrophysical S-factor from 10 keV to 5 MeV and reaction rate from 0.01 to 10 T9

Abstract

The astrophysical S-factor for the process p7Be→8Bγ of radiative capture by the 8B ground state is described up to 5 MeV, within the modified potential cluster model. The signatures of the S-factor resonances at 0.632, 2.18 and 3.36 MeV due to M1 and E2 transitions from the scattering of resonance P13, F33 and D23 waves to the ground P23 state are illuminated using total cross sections, astrophysical S-factors and reaction rates at temperatures from 0.01 to 10.0 T9. Experimental data on the S-factor are reproduced well in the range 100 keV to 3 MeV. The importance of the input of the 0.632 MeV resonance to the reaction rate is proved. Our calculations (performed in advance) confirm the latest data for the S-factor at 19 keV.