Precision calculation of ${}^3$He$(\alpha ,\gamma {)}^7$Be for solar physics

Ratna Khadka, Ling Gan, Renato Higa +1

We calculate the cross section for radiative capture ${}^3$He$(\alpha ,\gamma {)}^7$Be at next-to-next-to-leading order (NNLO). At this order of perturbation, momentum dependent two-body currents…