Results 1 to 10 of about 125,563 (231)
Mathematics, 2022 The calculation of low frequency expansions for acoustic wave scattering has been under thorough investigation for many decades due to their utility in technological applications.
Foteini Kariotou +2 more
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Journal of High Energy Physics, 2021 We re-examine the constraints imposed by causality and unitarity on the low-energy effective field theory expansion of four-particle scattering amplitudes, exposing a hidden “totally positive” structure strikingly similar to the positive geometries ...
Nima Arkani-Hamed +2 more
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Generalized elastic positivity bounds on interacting massive spin-2 theories
Journal of High Energy Physics, 2021 We use generalized elastic positivity bounds to constrain the parameter space of multi-field spin-2 effective field theories. These generalized bounds involve inelastic scattering amplitudes between particles with different masses, which contain ...
Zi-Yue Wang, Cen Zhang, Shuang-Yong Zhou
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A three-dimensional variational data assimilation system for aerosol optical properties based on WRF-Chem v4.0: design, development, and application of assimilating Himawari-8 aerosol observations [PDF]
Geoscientific Model Development, 2022 This paper presents a three-dimensional variational (3DVAR) data assimilation (DA) system for aerosol optical properties, including aerosol optical thickness (AOT) retrievals and lidar-based aerosol profiles, developed for the Model for Simulating ...
D. Wang +6 more
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The bottom-up EFT: complete UV resonances of the SMEFT operators
Journal of High Energy Physics, 2022 The standard model effective field theory (SMEFT) provides systematic parameterization of all possible new physics above the electroweak scale. According to the amplitude-operator correspondence, an effective operator can be decomposed into a linear ...
Hao-Lin Li +3 more
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Leading nonlinear tidal effects and scattering amplitudes
Journal of High Energy Physics, 2021 We present the two-body Hamiltonian and associated eikonal phase, to leading post-Minkowskian order, for infinitely many tidal deformations described by operators with arbitrary powers of the curvature tensor.
Zvi Bern +4 more
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Direct detection of electroweak dark matter
European Physical Journal C: Particles and Fields, 2023 TeV-scale dark matter is well motivated by notions of naturalness as the new physics threshold is expected to emerge in the TeV regime. We generalise the Standard Model by including an arbitrary SU(2) multiplet of dark matter particles in non-chiral ...
Ramtin Amintaheri
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Journal of High Energy Physics, 2022 Celestial holography provides a promising avenue to studying bulk scattering in flat spacetime from the perspective of boundary celestial conformal field theory (CCFT).
Hongliang Jiang
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New relations for tree-level form factors and scattering amplitudes
Journal of High Energy Physics, 2023 We show that tree-level form factors with length-two operators in Yang-Mills-scalar (YMS) theory exhibit structures very similar to scattering amplitudes of gluons and scalars, which leads to new relations between them. Just like amplitudes, n-point Yang-
Jin Dong, Song He, Guanda Lin
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Soft constraints on KMOC formalism
Journal of High Energy Physics, 2022 In this note, we investigate the implications of classical soft theorems for the formalism developed by Kosower, Maybee and O’Connell (KMOC) to derive classical observables in gauge theory and gravity from scattering amplitudes.
Yilber Fabian Bautista, Alok Laddha
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