12B(n,γ)13B reaction as an alternative path to astrophysical synthesis of 13C isotope
Dubovichenko S.B. Burkova N.A. Dzhazairov-Kakhramanov A.V. Yertaiuly A.
July 2021Elsevier B.V.
Nuclear Physics A
2021#1011
The total cross sections of the neutron radiative capture on 12B at astrophysical energies to the ground state of 13B, have been calculated in the energy range of 10−8 to 10 MeV within the framework of a modified potential cluster model with the classification of orbital states according to Young diagrams. Reaction rates in the temperature range of 0.01 to 10 T9, and their analytical parameterizations were obtained. The calculated rates of 12B(n,γ)13B excess the previous results obtained by other approaches by approximately to one order of magnitude. Cross sections and reaction rates of 12C(n,γ0+1+2+3)13C are calculated and compared to the n10B, n11B, n12B, and p12C reaction rates. It is proposed that the obtained rates of the 12B(n,γ)13B reaction may be suggested for the discussion of novel scenarios of stable isotope 13C synthesis when p-captures on 12C are not present.
n12B cluster system , Nuclear astrophysics , Primordial nucleosynthesis , Radiative capture , Thermal and astrophysical energies , Total cross section
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Fesenkov Astrophysical Institute “NCSRT” ASA MDASI RK, Almaty, 050020, Kazakhstan
al-Farabi Kazakh National University, RK, Almaty, 050040, Kazakhstan
Fesenkov Astrophysical Institute “NCSRT” ASA MDASI RK
al-Farabi Kazakh National University
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