ELEMENTARY PARTICLE PHYSICS AND FIELD THEORY INFLUENCE OF RESONANCES ON THE B-11 (n, ?(1))B-12 REACTION RATE

S. B. Dubovichenko,N. A. Burkova, A. V. Dzhazairov-Kahramanov,T. A. Shmygaleva,A. S. Tkachenko, A. Samratova, R. Shamitova

RUSSIAN PHYSICS JOURNAL(2022)

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Abstract
Within the framework of the modified potential cluster model with a classification of orbital states according to Young's diagrams, the possibility of predicting the missing experimental data for the total cross sections of radiative n(11)B capture on the first excited state of the B-12 nucleus at 0.95 MeV (2(+)) for the reaction energies from 10 meV (1 meV = 10(-3) eV) to 7 MeV is considered. Based on the obtained total cross sections that take into account resonances up to 5 eV, the reaction rate is calculated at temperatures from 0.01 to 10.0 T-9. It is shown that low-lying resonances have a significant effect on the capture reaction rate.
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Key words
nuclear astrophysics,light atomic nuclei,thermal and astrophysical energies,elastic scattering,n(11)B system,excited states,potential description,radiative capture,total cross sections,thermonuclear reactions,potential cluster model,forbidden states,classification of orbital states according to Young's diagrams
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