Direct Accessibility of the Fundamental Constants Governing Light-by-Light Scattering
| العنوان: | Direct Accessibility of the Fundamental Constants Governing Light-by-Light Scattering |
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| المؤلفون: | Felix Karbstein, Daniel Ullmann, Elena A. Mosman, Matt Zepf |
| المصدر: | Physical review letters 129(6), 061802 (2022). doi:10.1103/PhysRevLett.129.061802 Physical Review Letters |
| بيانات النشر: | American Physical Society (APS), 2022. |
| سنة النشر: | 2022 |
| مصطلحات موضوعية: | High Energy Physics - Phenomenology, Quantum Physics, High Energy Physics - Phenomenology (hep-ph), FOS: Physical sciences, General Physics and Astronomy, ddc:530, Quantum Physics (quant-ph) |
| الوصف: | Quantum field theory predicts the vacuum to exhibit a non-linear response to strong electromagnetic fields. This fundamental tenet has remained experimentally challenging and is yet to be tested in the laboratory. We present proof of concept and detailed theoretical analysis of an experimental setup for precision measurements of the quantum vacuum signal generated by the collision of a brilliant x-ray probe with a high-intensity pump laser. The signal features components polarised parallel and perpendicularly to the incident x-ray probe. Our proof-of-concept measurements show that the background can be efficiently suppressed by many orders of magnitude which should not only facilitate a detection of the perpendicularly polarised component of non-linear vacuum response, but even make the parallel polarised component experimentally accessible for the first time. Remarkably, the angular separation of the signal from the intense x-ray probe enables precision measurements even in presence of pump fluctuations and alignment jitter. This provides direct access to the low-energy constants governing light-by-light scattering. 5 pages, 4 figures |
| تدمد: | 1079-7114 0031-9007 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::979863d9c8a87396fc2ed1f2dd549897 https://doi.org/10.1103/physrevlett.129.061802 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....979863d9c8a87396fc2ed1f2dd549897 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 10797114 00319007 |
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