Investigation of reaction cross section for beam of 8Li, 8He on 28Si, 59Co, 181Ta targets

Oct 15, 2020, 11:00 AM
35m
Online

Online

Plenary report Section 2. Experimental and theoretical studies of nuclear reactions. Plenary

Speaker

Viacheslav Samarin (Joint Institute for Nuclear Research)

Description

Total reaction cross sections for interaction of ${}^8$Li and ${}^8$He secondary beam with ${}^{28}$Si, ${}^{59}$Co, ${}^{181}$Ta target nuclei in the energy range 25–45 A MeV were measured. Modified transmission method based on registration of prompt $n$, $\gamma$ radiation by a multi-detector $\gamma$-spectrometer [1, 2] was used. Energy dependences of total reaction cross sections were obtained. Theoretical analysis of experimental data was performed in the microscopic model based on numerical solution of the time-dependent Schrödinger equation for the outer weakly bound neutrons of the projectile nucleus [3]. Agreement with experimental data was obtained. The role of the cluster structure of projectile nuclei [4] in the reaction mechanisms was analyzed.

Referances
1. Yu.E. Penionzhkevich, Yu.G. Sobolev, V.V. Samarin, M.A. Naumenko // Phys. Rev. C. 2019. V.99. 014609.
2. Yu.G. Sobolev, Yu.E. Penionzhkevich, V.A. Maslov et al. // Bull. Russ. Acad. Sci.: Phys. 2019. V. 83. P. 402.
3. V.V. Samarin // Phys. At. Nucl. 2015. V. 78. P. 128.
4. V.V. Samarin, M.A. Naumenko // Bull. Russ. Acad. Sci.: Phys. 2019. V. 83. P. 411.

Primary author

Viacheslav Samarin (Joint Institute for Nuclear Research)

Co-authors

Presentation materials