Nonlinear Breit-Wheeler pair production using polarized photons from inverse Compton scattering
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| Format: | Preprint |
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2024
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| _version_ | 1866912117787983872 |
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| author | Seipt, Daniel Samuelsson, Mathias Blackburn, Tom |
| author_facet | Seipt, Daniel Samuelsson, Mathias Blackburn, Tom |
| contents | Observing multiphoton electron-positron pair production (the nonlinear Breit-Wheeler process) requires high-energy $γ$ rays to interact with strong electromagnetic fields. In order for these observations to be as precise as possible, the $γ$ rays would ideally be both mono-energetic and highly polarized. Here we perform Monte Carlo simulations of an experimental configuration that accomplishes this in two stages. First, a multi-GeV electron beam interacts with a moderately intense laser pulse to produce a bright, highly polarized beam of $γ$ rays by inverse Compton scattering. Second, after removing the primary electrons, these $γ$ rays collide with another, more intense, laser pulse in order to produce pairs. We show that it is possible to measure the $γ$-ray polarization dependence of the nonlinear Breit-Wheeler process in near-term experiments, using a 100-TW class laser and currently available electron beams. Furthermore, it would also be possible to observe harmonic structure and the perturbative-to-nonperturbative transition if such a laser were colocated with a future linear collider. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2411_08559 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Nonlinear Breit-Wheeler pair production using polarized photons from inverse Compton scattering Seipt, Daniel Samuelsson, Mathias Blackburn, Tom High Energy Physics - Phenomenology Plasma Physics Observing multiphoton electron-positron pair production (the nonlinear Breit-Wheeler process) requires high-energy $γ$ rays to interact with strong electromagnetic fields. In order for these observations to be as precise as possible, the $γ$ rays would ideally be both mono-energetic and highly polarized. Here we perform Monte Carlo simulations of an experimental configuration that accomplishes this in two stages. First, a multi-GeV electron beam interacts with a moderately intense laser pulse to produce a bright, highly polarized beam of $γ$ rays by inverse Compton scattering. Second, after removing the primary electrons, these $γ$ rays collide with another, more intense, laser pulse in order to produce pairs. We show that it is possible to measure the $γ$-ray polarization dependence of the nonlinear Breit-Wheeler process in near-term experiments, using a 100-TW class laser and currently available electron beams. Furthermore, it would also be possible to observe harmonic structure and the perturbative-to-nonperturbative transition if such a laser were colocated with a future linear collider. |
| title | Nonlinear Breit-Wheeler pair production using polarized photons from inverse Compton scattering |
| topic | High Energy Physics - Phenomenology Plasma Physics |
| url | https://arxiv.org/abs/2411.08559 |