# LXX International conference "NUCLEUS – 2020. Nuclear physics and elementary particle physics. Nuclear physics technologies"

Oct 11 – 17, 2020
Online
Europe/Moscow timezone

## 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.

### 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)

### Presentation materials

 Samarin_8Li8He_N2020.pdf Samarin_8Li8He_N2020.ppt