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Bounds on photon scattering
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DOI：10.1007/JHEP10(2024)103.png)
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摘要
En 中文
We study 2-to-2 scattering amplitudes of massless spin one particles in d = 4 space-time dimensions, like real world photons. We define a set of non-perturbative observables (Wilson coefficients) which describe these amplitudes at low energies. We use full non-linear unitarity to construct various novel numerical bounds on these observables. For completeness, we also rederive some bounds using positivity only. We discover and explain why some of these Wilson coefficients cannot be bounded.
Keyword:
Effective Field Theories
Nonperturbative Effects
Scattering Amplitudes
期刊
IF:
5.5
论文数:
3.9W
被引数:
13.7W
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