Reanalysis of the N13(p,γ)O14 reaction and its role in the stellar CNO cycle

Astrophysical S-factor and reaction rate for 15N(p,γ)16O within the modified potential cluster model*

“…[27], the value of 29.8(1.1) keV•b was obtained in the effective field theory framework. However, [27] )…”

“…In the framework of the selective resonant tunneling model [24], the 15 N( ) 16 O cross section and S-factor have been studied [25]. Most recently, the astrophysical -factor for the radiative proton capture process on the 15 N nucleus at stellar energies are studied within the framework of the cluster effective field theory [26,27]. The authors performed the single channel calculations considering only the contribution of the first resonance into a cross section [26] and then reported the results by including two low-energy resonances [27].…”

The Influence of Production and Destruction of O Isotopes in Red Giant Stars

“…64, No. 5, pp: 2614-2626 temperature threshold starting at about 1.5x10 6 K [1]. Such stars can vary in their properties to include many types, including red giants.…”

“…At narrow resonances, the calculation becomes difficult since many peaks will interfere due to the minor but many contributions of Coulomb energies, thus the total estimation of theoretical values deviates from experimental ones [9], [10]. Instead, in such regions, other precise methods are followed, such as Hauser-Feshbach model [11] or the recent modified potential cluster model [1]. All such models are tested against experimentally established reaction rates, and such comparisons with experimental data were sought since the famous beginning of theoretical calculation by Fowler et al [12].…”

Comparative role of the 7Li(n, γ ) reaction in Big Bang nucleosynthesis

“…Besides σ therm EFT calculations have been oriented on data [56], where the 8 Li Coulomb dissociation in n + 7 Li channel has been applied to extract neutron capture cross sections of 7 Li(n, γ) 8 Li. We are taking in consideration additional data on σ therm [8], and use both not as matching values, but as a control of accuracy of numerical calculations within the MPCM [57]. There are some methodical limitations on the reconstruction cross section procedure at low energies, as well accurate accounting of (n, γ 1 ) channel [56].…”