Perrotta, S. S. (2023) Issues in the experimental determination of electron screening effects in nuclear reactions of astrophysical interest. Il nuovo cimento C, 46 (3). pp. 1-11. ISSN 1826-9885
|
Text
ncc12627.pdf - Published Version Download (304kB) | Preview |
Abstract
In fixed-target experiments at collision energies of astrophysical interest (100 keV), the dynamics of nuclear reactions between charged particles is affected by electrons bound to the projectile and target. Some measurements involving atomic-like targets suggest deviations sensibly greater than theoretically expected for a screening effect due only to atomic electrons. This work aims to study more in depth the degree of compatibility of experimental data with standard atomic theory. Traditional methods to estimate screening effects from data are presented, discussing their strengths and limitations, and a different approach is proposed. It is underlined how empirical investigations on screening cannot be disentangled from the problem of modelling the low-energy bare cross-section. The study was applied to the 6Li + p → 3He + α reaction.
| Item Type: | Article |
|---|---|
| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 29 Jan 2024 12:03 |
| Last Modified: | 29 Jan 2024 12:03 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/22594 |
Actions (login required)
 |
View Item |
