Reaction rate of p14N →15Oγ capture to all bound states in potential cluster model

Abstract

Review of calculation results for astrophysical [Formula: see text]-factor of the [Formula: see text]N[Formula: see text]O capture reaction in the [Formula: see text]N channel of [Formula: see text]O was presented. It was carried out in the frame of the modified potential cluster model (MPCM) taking into account resonances in the [Formula: see text]O spectrum up to 3.2[Formula: see text]MeV at energy of incident protons varying of 30[Formula: see text]keV to 5[Formula: see text]MeV. It is possible to describe experimental data for the astrophysical [Formula: see text]-factors of the radiative proton capture on [Formula: see text]N to five excited states of [Formula: see text]O at excitation energies of 5.18[Formula: see text]MeV to 6.86[Formula: see text]MeV, only under assumption, that all five resonances are [Formula: see text] scattering waves. Quality new physical interpretation of the capture mechanism is discussed in this channel to the ground state of [Formula: see text]O. We assumed that the ground state of [Formula: see text]O is determined by the [Formula: see text]N[Formula: see text] channel with excited [Formula: see text]N[Formula: see text] cluster, which immediately allowed us to correctly describe order of values of the experimental [Formula: see text]-factor for capture to this state. Taking into account these results, the total [Formula: see text]-factor of the proton capture on [Formula: see text]N and the reaction rates to the ground and five excited states of [Formula: see text]O were determined at temperatures of 0.01[Formula: see text][Formula: see text] to 10[Formula: see text][Formula: see text]. The parametrization of the total reaction rate with a simple form is performed, which allows as to obtain [Formula: see text] equal to 0.06 with 5% errors of the calculated rate.