Experimental study of the energy dependence of the total cross section for the {sup 6}He + {sup nat}Si and {sup 9}Li + {sup nat}Si reactions

Journal Article · Wed Nov 15 04:00:00 EST 2017 · Physics of Particles and Nuclei

DOI:https://doi.org/10.1134/S1063779617060545· OSTI ID:22979483

Penionzhkevich, Yu. E. ^[1]; Aznabaev, D. ^[1]; Zemlyanaya, E. V.; Ivanov, M. P. ^[1]; others, and

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1. Joint Institute for Nuclear Research, Dubna (Russian Federation)

New experimental measurements of the total reaction cross sections for the {sup 6}He + {sup nat}Si and {sup 9}Li + {sup nat}Si 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 σ{sub R}(E) at E ∼ 10–30 A MeV for the {sup 9}Li + {sup nat}Si reaction, and existence of the bump in σ{sub R}(E) at E ∼ 10–20 A MeV first observed in the standard transmission experiments is experimentally confirmed for the {sup 6}He + {sup nat}Si reaction. Theoretical analysis of the measured {sup 6}He + {sup nat}Si and {sup 9}Li + {sup nat}Si 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.

• OSTI ID: 22979483
• Journal Information: Physics of Particles and Nuclei, Journal Name: Physics of Particles and Nuclei Journal Issue: 6 Vol. 48; ISSN 1063-7796
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ENERGY DEPENDENCE
FOLDING MODEL
HELIUM 6
LITHIUM 9
TOTAL CROSS SECTIONS