Charge-neutral, GeV-scale electron-positron pair beams produced using bremsstrahlung gamma rays
Abstract Matter-antimatter plasmas, such as electron-positron pair plasmas, are frequently observed in various astrophysical phenomena. In laboratory settings, electron-positron pairs have often been generated using high-Z converters irradiated by either direct laser pulses or laser-driven electron...
| Main Authors: | , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2024-01-01
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| Series: | Communications Physics |
| Online Access: | https://doi.org/10.1038/s42005-024-01527-7 |
| _version_ | 1797274405759352832 |
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| author | Youhwan Noh Jaehyun Song Mohammad Mirzaie Calin Ioan Hojbota Hyeong-il Kim Seongmin Lee Junho Won Hoon Song Chiwan Song Chang-Mo Ryu Chang Hee Nam Woosuk Bang |
| author_facet | Youhwan Noh Jaehyun Song Mohammad Mirzaie Calin Ioan Hojbota Hyeong-il Kim Seongmin Lee Junho Won Hoon Song Chiwan Song Chang-Mo Ryu Chang Hee Nam Woosuk Bang |
| author_sort | Youhwan Noh |
| collection | DOAJ |
| description | Abstract Matter-antimatter plasmas, such as electron-positron pair plasmas, are frequently observed in various astrophysical phenomena. In laboratory settings, electron-positron pairs have often been generated using high-Z converters irradiated by either direct laser pulses or laser-driven electron beams. Here we generate charge-neutral electron-positron beams with energies in the GeV range, utilizing bremsstrahlung gamma rays. Specifically, intense high-energy gamma rays produced electron-positron pair particles in a lead converter via the Bethe-Heitler process. The produced pair beams exhibited neutrality across all converter thicknesses throughout the energy spectrum spanning from 10 MeV to 1.8 GeV. Pairs with energies surpassing 1 GeV constituted up to 26% of the total kinetic energy within the spectrum. The experimental results were in good agreement with our Geant4 Monte Carlo simulations. These GeV-scale neutral pair particle beams have potential applications for understanding energetic astrophysical phenomena and high-energy particle physics. |
| first_indexed | 2024-03-07T14:57:52Z |
| format | Article |
| id | doaj.art-da54644c23574a7b9f4d04e19843590c |
| institution | Directory Open Access Journal |
| issn | 2399-3650 |
| language | English |
| last_indexed | 2024-03-07T14:57:52Z |
| publishDate | 2024-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Communications Physics |
| spelling | doaj.art-da54644c23574a7b9f4d04e19843590c2024-03-05T19:20:53ZengNature PortfolioCommunications Physics2399-36502024-01-017111010.1038/s42005-024-01527-7Charge-neutral, GeV-scale electron-positron pair beams produced using bremsstrahlung gamma raysYouhwan Noh0Jaehyun Song1Mohammad Mirzaie2Calin Ioan Hojbota3Hyeong-il Kim4Seongmin Lee5Junho Won6Hoon Song7Chiwan Song8Chang-Mo Ryu9Chang Hee Nam10Woosuk Bang11Department of Physics and Photon Science, GISTDepartment of Physics and Photon Science, GISTCenter for Relativistic Laser Science, Institute for Basic ScienceCenter for Relativistic Laser Science, Institute for Basic ScienceDepartment of Physics and Photon Science, GISTDepartment of Physics and Photon Science, GISTDepartment of Physics and Photon Science, GISTDepartment of Physics and Photon Science, GISTDepartment of Physics and Photon Science, GISTCenter for Relativistic Laser Science, Institute for Basic ScienceDepartment of Physics and Photon Science, GISTDepartment of Physics and Photon Science, GISTAbstract Matter-antimatter plasmas, such as electron-positron pair plasmas, are frequently observed in various astrophysical phenomena. In laboratory settings, electron-positron pairs have often been generated using high-Z converters irradiated by either direct laser pulses or laser-driven electron beams. Here we generate charge-neutral electron-positron beams with energies in the GeV range, utilizing bremsstrahlung gamma rays. Specifically, intense high-energy gamma rays produced electron-positron pair particles in a lead converter via the Bethe-Heitler process. The produced pair beams exhibited neutrality across all converter thicknesses throughout the energy spectrum spanning from 10 MeV to 1.8 GeV. Pairs with energies surpassing 1 GeV constituted up to 26% of the total kinetic energy within the spectrum. The experimental results were in good agreement with our Geant4 Monte Carlo simulations. These GeV-scale neutral pair particle beams have potential applications for understanding energetic astrophysical phenomena and high-energy particle physics.https://doi.org/10.1038/s42005-024-01527-7 |
| spellingShingle | Youhwan Noh Jaehyun Song Mohammad Mirzaie Calin Ioan Hojbota Hyeong-il Kim Seongmin Lee Junho Won Hoon Song Chiwan Song Chang-Mo Ryu Chang Hee Nam Woosuk Bang Charge-neutral, GeV-scale electron-positron pair beams produced using bremsstrahlung gamma rays Communications Physics |
| title | Charge-neutral, GeV-scale electron-positron pair beams produced using bremsstrahlung gamma rays |
| title_full | Charge-neutral, GeV-scale electron-positron pair beams produced using bremsstrahlung gamma rays |
| title_fullStr | Charge-neutral, GeV-scale electron-positron pair beams produced using bremsstrahlung gamma rays |
| title_full_unstemmed | Charge-neutral, GeV-scale electron-positron pair beams produced using bremsstrahlung gamma rays |
| title_short | Charge-neutral, GeV-scale electron-positron pair beams produced using bremsstrahlung gamma rays |
| title_sort | charge neutral gev scale electron positron pair beams produced using bremsstrahlung gamma rays |
| url | https://doi.org/10.1038/s42005-024-01527-7 |
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