Results 21 to 30 of about 221,951 (285)
Three-loop helicity amplitudes for four-quark scattering in massless QCD
Journal of High Energy Physics, 2021 We compute the three-loop corrections to the helicity amplitudes for q q ¯ $$ \overline{q} $$ → Q Q ¯ $$ \overline{Q} $$ scattering in massless QCD. In the Lorentz decomposition of the scattering amplitude we avoid evanescent Lorentz structures and map ...
Fabrizio Caola +4 more
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Soft radiation from scattering amplitudes revisited
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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Tropical fans, scattering equations and amplitudes
Journal of High Energy Physics, 2021 We describe a family of tropical fans related to Grassmannian cluster algebras. These fans are related to the kinematic space of massless scattering processes in a number of ways.
James Drummond +3 more
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Scattering amplitudes of fermions on monopoles
Journal of High Energy Physics, 2023 We consider scattering processes involving massless fermions and ’t Hooft-Polyakov magnetic monopoles in a minimal SU(2) model and in the Grand Unified SU(5) theory.
Valentin V. Khoze
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Scatterings of Massive String States from D-brane and Their Linear Relations at High Energies [PDF]
, 2006 We study scatterings of bosonic massive closed string states at arbitrary mass levels from D-brane. We discover that all the scattering amplitudes can be expressed in terms of the generalized hypergeometric function with special arguments, which ...
Bachas +38 more
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ABJM flux-tube and scattering amplitudes
Journal of High Energy Physics, 2019 There is a number of indications that scattering amplitudes in the Aharony-Bergman-Jafferis-Maldacena theory might have a dual description in terms of a holonomy of a supergauge connection on a null polygonal contour in a way analogous to the four ...
Benjamin Basso, Andrei V. Belitsky
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Massive on-shell supersymmetric scattering amplitudes
Journal of High Energy Physics, 2019 We introduce a manifestly little group covariant on-shell superspace for massive particles in four dimensions using the massive spinor helicity formalism.
Aidan Herderschee +2 more
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Plahte diagrams for string scattering amplitudes
Journal of High Energy Physics, 2021 Plahte identities are monodromy relations between open string scattering amplitudes at tree level derived from the Koba-Nielsen formula. We represent these identities by polygons in the complex plane.
Pongwit Srisangyingcharoen +1 more
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Automating scattering amplitudes with chirality flow
European Physical Journal C: Particles and Fields, 2022 Recently we introduced the chirality-flow formalism, a method which builds on the spinor-helicity formalism and is inspired by the color-flow idea in QCD.
Andrew Lifson +2 more
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Notes on High Energy Limit of Bosonic Closed String Scattering Amplitudes
, 2006 We study bosonic closed string scattering amplitudes in the high-energy limit. We find that the methods of decoupling of high-energy zero-norm states and the high-energy Virasoro constraints, which were adopted in the previous works to calculate the ...
Chan +32 more
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