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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2509.15853 |
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| _version_ | 1866915683162390528 |
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| author | Mathiak, Oliver Reichwein, Lars Pukhov, Alexander |
| author_facet | Mathiak, Oliver Reichwein, Lars Pukhov, Alexander |
| contents | We investigate the process of creating electron-positron pairs from laser-matter interaction in pre-ionised foam targets using particle-in-cell simulations. A high-intensity laser pulse drives electrons via direct laser acceleration up to a cone-shaped reflector. The high-energy electrons interact with the reflected laser pulse, generating abundant pairs. The effects of the plasma-channel shape on the propagation of the laser pulse and subsequent pair production is studied. The results show that the number of Compton emission and Breit-Wheeler pair creation events is highly sensitive to the diffraction of the laser due to its interaction with the foam. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_15853 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Electron-positron pair generation using a single kJ-class laser pulse in a foam-reflector setup Mathiak, Oliver Reichwein, Lars Pukhov, Alexander Plasma Physics We investigate the process of creating electron-positron pairs from laser-matter interaction in pre-ionised foam targets using particle-in-cell simulations. A high-intensity laser pulse drives electrons via direct laser acceleration up to a cone-shaped reflector. The high-energy electrons interact with the reflected laser pulse, generating abundant pairs. The effects of the plasma-channel shape on the propagation of the laser pulse and subsequent pair production is studied. The results show that the number of Compton emission and Breit-Wheeler pair creation events is highly sensitive to the diffraction of the laser due to its interaction with the foam. |
| title | Electron-positron pair generation using a single kJ-class laser pulse in a foam-reflector setup |
| topic | Plasma Physics |
| url | https://arxiv.org/abs/2509.15853 |