Bounds on photon scattering

Kelian Häring; Aditya Hebbar; Denis Karateev; Marco Meineri; João Penedones

doi:10.1007/JHEP10(2024)103

Bounds on photon scattering

Kelian Häring
, Aditya Hebbar
, Denis Karateev
, Marco Meineri
, João Penedones

Research output: Contribution to journal › Article › peer-review

Abstract

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.

Original language	English
Article number	103
Journal	Journal of High Energy Physics
Volume	2024
Issue number	10
DOIs	https://doi.org/10.1007/JHEP10(2024)103
Publication status	Published - 1 Oct 2024

Keywords

Effective Field Theories
Nonperturbative Effects
Scattering Amplitudes

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10.1007/JHEP10(2024)103

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title = "Bounds on photon scattering",

abstract = "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.",

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AU - Häring, Kelian

AU - Hebbar, Aditya

AU - Karateev, Denis

AU - Meineri, Marco

AU - Penedones, João

N1 - Publisher Copyright: © The Author(s) 2024.

PY - 2024/10/1

Y1 - 2024/10/1

N2 - 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.

AB - 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.

KW - Effective Field Theories

KW - Nonperturbative Effects

KW - Scattering Amplitudes

UR - https://www.scopus.com/pages/publications/85206374700

U2 - 10.1007/JHEP10(2024)103

DO - 10.1007/JHEP10(2024)103

M3 - Article

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SN - 1126-6708

VL - 2024

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 10

M1 - 103

ER -

Bounds on photon scattering

Abstract

Keywords

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