Results 11 to 20 of about 2,132,739 (345)
The SAGEX review on scattering amplitudes* [PDF]
Journal of Physics A: Mathematical and Theoretical, 2022 Abstract This is an introduction to, and invitation to read, a series of review articles on scattering amplitudes in gauge theory, gravity, and superstring theory. Our aim is to provide an overview of the field, from basic aspects to a selection of current (2022) research and developments.
Travaglini, G +37 more
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Geometry in scattering amplitudes [PDF]
Physical Review D, 2022 We formulate the field-space geometry for an effective field theory of scalars and gauge bosons. Geometric invariants such as the field-space curvature enter in both scattering amplitudes and the renormalization group equations, with the scalar and gauge results unified in a single expression.
Andreas Helset +2 more
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Positive moments for scattering amplitudes [PDF]
Physical Review D, 2021 We find the complete set of conditions satisfied by the forward $2\to2$ scattering amplitude in unitarity and causal theories. These are based on an infinite set of energy dependent quantities -- the arcs -- which are dispersively expressed as moments of a positive measure defined at (arbitrarily) higher energies.
Joan Elias Miró +6 more
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Scattering Amplitudes: Celestial and Carrollian [PDF]
Physical Review Letters, 2022 21 ...
Arjun Bagchi +3 more
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Measure for Chaotic Scattering Amplitudes [PDF]
Physical Review Letters, 2022 v2: small corrections, references added; v3: minor improvements to match published ...
Massimo Bianchi +3 more
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The sub-leading scattering waveform from amplitudes [PDF]
Journal of High Energy Physics, 2023 We compute the next-to-leading order term in the scattering waveform of uncharged black holes in classical general relativity and of half-BPS black holes in N $$ \mathcal{N} $$ = 8 supergravity.
Aidan Herderschee, Radu Roiban, Fei Teng
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The SAGEX review on scattering amplitudes Chapter 7: Positive geometry of scattering amplitudes [PDF]
Journal of Physics A: Mathematical and Theoretical, 2022 Abstract Scattering amplitudes are both a wonderful playground to discover novel ideas in quantum field theory and simultaneously of immense phenomenological importance to make precision predictions for e.g. particle collider observables and more recently also for gravitational wave signals. In this review chapter, we give an overview of
Enrico Herrmann, Jaroslav Trnka
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Numerical scattering amplitudes with pySecDec [PDF]
Computer Physics Communications, 2023 We present a major update of the program pySecDec, a toolbox for the evaluation of dimensionally regulated parameter integrals. The new version enables the evaluation of multi-loop integrals as well as amplitudes in a highly distributed and flexible way, optionally on GPUs. The program has been optimised and runs up to an order of magnitude faster than
G. Heinrich +5 more
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Soft radiation from scattering amplitudes revisited [PDF]
Journal of High Energy Physics, 2021 We apply the recently developed formalism by Kosower, Maybee and O’Connell (KMOC) [12] to analyse the soft electromagnetic and soft gravitational radiation emitted by particles without spin in D ≥ 4 dimensions.
A. Manu +3 more
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Post-Newtonian waveforms from spinning scattering amplitudes [PDF]
Journal of High Energy Physics, 2022 We derive the classical gravitational radiation from an aligned spin binary black hole on closed orbits, using a dictionary built from the 5-point QFT scattering amplitude of two massive particles exchanging and emitting a graviton.
Yilber Fabian Bautista, Nils Siemonsen
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