Fragmentation of the 4He2 dimer with the emission of three or four electrons by fast highly charged projectiles
We investigate the fragmentation of the helium dimer, 4He2, into He2+ + He+ and He2+ + He2+ ions in collisions with fast highly charged projectiles. We discuss the main physical mechanisms driving these processes. We explore the energy and angular distributions of the ionic fragments produced during...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Frontiers Media S.A.
2023-03-01
|
| Series: | Frontiers in Physics |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fphy.2023.1145511/full |
| _version_ | 1797856399050407936 |
|---|---|
| author | B. Najjari S. F. Zhang X. Ma A. B. Voitkiv |
| author_facet | B. Najjari S. F. Zhang X. Ma A. B. Voitkiv |
| author_sort | B. Najjari |
| collection | DOAJ |
| description | We investigate the fragmentation of the helium dimer, 4He2, into He2+ + He+ and He2+ + He2+ ions in collisions with fast highly charged projectiles. We discuss the main physical mechanisms driving these processes. We explore the energy and angular distributions of the ionic fragments produced during collisions of the dimer with 1 GeV/u U92+ and 11.37 MeV/u S14+ projectiles and also present the total fragmentation cross-sections. According to our results, the fragmentation in these collisions is fully dominated by the direct removal of three or four electrons from the dimer by the projectile in a single collision. Our results also suggest that the total fragmentation cross-sections depend on the binding energy IHe2 of the dimer, being roughly proportional to IHe2. |
| first_indexed | 2024-04-09T20:39:47Z |
| format | Article |
| id | doaj.art-2489fbf31711405cbfa21028d4274997 |
| institution | Directory Open Access Journal |
| issn | 2296-424X |
| language | English |
| last_indexed | 2024-04-09T20:39:47Z |
| publishDate | 2023-03-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Physics |
| spelling | doaj.art-2489fbf31711405cbfa21028d42749972023-03-30T05:13:39ZengFrontiers Media S.A.Frontiers in Physics2296-424X2023-03-011110.3389/fphy.2023.11455111145511Fragmentation of the 4He2 dimer with the emission of three or four electrons by fast highly charged projectilesB. Najjari0S. F. Zhang1X. Ma2A. B. Voitkiv3Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, ChinaInstitute of Modern Physics, Chinese Academy of Sciences, Lanzhou, ChinaInstitute of Modern Physics, Chinese Academy of Sciences, Lanzhou, ChinaInstitute for Theoretical Physics I, Heinrich-Heine-Universität Düsseldorf, Universitätsstrasse 1, Düsseldorf, GermanyWe investigate the fragmentation of the helium dimer, 4He2, into He2+ + He+ and He2+ + He2+ ions in collisions with fast highly charged projectiles. We discuss the main physical mechanisms driving these processes. We explore the energy and angular distributions of the ionic fragments produced during collisions of the dimer with 1 GeV/u U92+ and 11.37 MeV/u S14+ projectiles and also present the total fragmentation cross-sections. According to our results, the fragmentation in these collisions is fully dominated by the direct removal of three or four electrons from the dimer by the projectile in a single collision. Our results also suggest that the total fragmentation cross-sections depend on the binding energy IHe2 of the dimer, being roughly proportional to IHe2.https://www.frontiersin.org/articles/10.3389/fphy.2023.1145511/fullhelium dimerfragmentationfast highly charged ionsthree-electron emissionfour electron emission(e, 2e) collisions |
| spellingShingle | B. Najjari S. F. Zhang X. Ma A. B. Voitkiv Fragmentation of the 4He2 dimer with the emission of three or four electrons by fast highly charged projectiles Frontiers in Physics helium dimer fragmentation fast highly charged ions three-electron emission four electron emission (e, 2e) collisions |
| title | Fragmentation of the 4He2 dimer with the emission of three or four electrons by fast highly charged projectiles |
| title_full | Fragmentation of the 4He2 dimer with the emission of three or four electrons by fast highly charged projectiles |
| title_fullStr | Fragmentation of the 4He2 dimer with the emission of three or four electrons by fast highly charged projectiles |
| title_full_unstemmed | Fragmentation of the 4He2 dimer with the emission of three or four electrons by fast highly charged projectiles |
| title_short | Fragmentation of the 4He2 dimer with the emission of three or four electrons by fast highly charged projectiles |
| title_sort | fragmentation of the 4he2 dimer with the emission of three or four electrons by fast highly charged projectiles |
| topic | helium dimer fragmentation fast highly charged ions three-electron emission four electron emission (e, 2e) collisions |
| url | https://www.frontiersin.org/articles/10.3389/fphy.2023.1145511/full |
| work_keys_str_mv | AT bnajjari fragmentationofthe4he2dimerwiththeemissionofthreeorfourelectronsbyfasthighlychargedprojectiles AT sfzhang fragmentationofthe4he2dimerwiththeemissionofthreeorfourelectronsbyfasthighlychargedprojectiles AT xma fragmentationofthe4he2dimerwiththeemissionofthreeorfourelectronsbyfasthighlychargedprojectiles AT abvoitkiv fragmentationofthe4he2dimerwiththeemissionofthreeorfourelectronsbyfasthighlychargedprojectiles |