Results 21 to 30 of about 31,625 (303)

Colour-Kinematics Duality for One-Loop Rational Amplitudes [PDF]

, 2013
Colour-kinematics duality is the conjecture of a group theory-like structure for the kinematic dependence of scattering amplitudes in gauge theory and gravity.
H. Boels, Rutger, O'Connell, Donal; id_orcid, Boels, Rutger Herman, Sven Isermann, Reinke, Isermann, Reinke Sven, O'Connell, Donal Francis, Marmiroli, Daniele, Monteiro, Ricardo   +7 more
core   +1 more source

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, Amlan Chakraborty, Giulio Gambuti, Andreas von Manteuffel, Lorenzo Tancredi   +4 more
doaj   +1 more source

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, Debodirna Ghosh, Alok Laddha, P. V. Athira   +3 more
doaj   +1 more source

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
doaj   +1 more source

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, Jack Foster, Ömer Gürdoğan, Chrysostomos Kalousios   +3 more
doaj   +1 more source

Scattering of Skyrmions [PDF]

, 2015
In this paper, we present a detailed study of Skyrmion-Skyrmion scattering for two B=1 Skyrmions in the attractive channel where we observe two different scattering regimes. For large separation, the scattering can be approximated as interacting dipoles.
Foster, David, David Foster, Foster, David J, Steffen Krusch, Krusch, Steffen   +4 more
core   +1 more source

The SAGEX Review on Scattering Amplitudes, Chapter 14: Classical Gravity from Scattering Amplitudes

, 2022
Scattering amplitudes have their origin in quantum field theory, but have wide-ranging applications extending to classical physics. We review a formalism to connect certain classical observables to scattering amplitudes. An advantage of this formalism is
Donal O’Connell, O'Connell, Donal, Monteiro, Ricardo, David A Kosower, Kosower, David A., Ricardo Monteiro   +5 more
core   +1 more source

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
doaj   +1 more source

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, Seth Koren, Timothy Trott   +2 more
doaj   +1 more source

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, Paul Mansfield   +1 more
doaj   +1 more source