Experimental study of the energy dependence of the total cross section for the 6He + natSi and 9Li + natSi reactions

Autor: D. Aznabaev, E. V. Zemlyanaya, R. S. Slepnev, K. Mendibayev, D. A. Testov, N. K. Skobelev, Yu. E. Penionzhkevich, A. Kugler, V. V. Smirnov, V. A. Maslov, M. P. Ivanov, N. A. Lashmanov, A. G. Knyazev, K. V. Lukyanov, A. M. Kabyshev, Yu. G. Sobolev, G. D. Kabdrakhimova, A. Maj
Rok vydání: 2017
Předmět:
Zdroj: Physics of Particles and Nuclei. 48:922-926
ISSN: 1531-8559
1063-7796
Popis: New experimental measurements of the total reaction cross sections for the 6He + natSi and 9Li + natSi processes in the energy range of 5 to 40 A MeV are presented. A modified transmission method based on high-efficiency detection of prompt n–γ radiation has been used in the experiment. A bump is observed for the first time in the energy dependence σR(E) at E ∼ 10–30 A MeV for the 9Li + natSi reaction, and existence of the bump in σR(E) at E ∼ 10–20 A MeV first observed in the standard transmission experiments is experimentally confirmed for the 6He + natSi reaction. Theoretical analysis of the measured 6He + natSi and 9Li + natSi reaction cross sections is performed within the microscopic double folding model. Disagreement is observed between the experimental and theoretical cross sections in the region of the bump at the energies of 10 to 20 A MeV, which requires further study.
Databáze: OpenAIRE
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