12B(n,gamma)13B reaction as alternative path to astrophysical synthesis of 13C isotope

Abstract

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 10E-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 parameterization were obtained. The calculated rates of 12B(n,gamma)13B excess the previous results by approximately to one order. Cross sections and reaction rates of 12C(n,gamma)13C are calculated and compared to the n10B, n11B, n12B, and p12C reaction rates. It is proposed that obtained rates of the 12B(n,gamma)13B reaction should be taken into account in novel scenarios of stable isotope 13C synthesis without of 12C hydrogen burning.

arXiv comment18p., 5 fig., 4 tabl., 48 ref

References in corpus (14)

• NACRE II: an update of the NACRE compilation of charged-particle-induced thermonuclear reaction rates for nuclei with mass number $A<16$
• New Nuclear Reaction Flow during r-Process Nucleosynthesis in Supernovae: Critical Role of Light Neutron-Rich Nuclei
• Spectroscopy of 13,14B via the one-neutron knockout reaction
• First observation of 20B and 21B
• Non-resonant direct p- and d-wave neutron capture by 12C
• Thermonuclear Processes for Three Body System in the Potential Cluster Model
• The radiative neutron capture on 2H, 6Li, 7Li, 12C and 13C at astrophysical energies
• Light radioactive nuclei capture reactions with phenomenological potential models
• Influence of resonances on the 11B(n,gamma)12B capture reaction rate. Capture to the ground state of 12B
• Influence of low-lying resonances on reaction rates for n10B capture
• New Results for Neutron Radiative Capture on 10be at Energies from 25.3 meV to 10.0 meV
• Influence of resonances on the 11B(n,g)12B capture reaction rate. II. Capture to the first excited state of 12B
• Influence of resonances on the ${}^{11}$B(n,gamma)${}^{12}$B capture reaction rate. III. Capture to the 2nd, 3rd and 4th excited state of ${}^{12}$B
• Abundance Anomaly of the ${}^{13}$C Isotopic Species of c-C${}_3$H${}_2$ in the Low-Mass Star Formation Region L1527