Results 11 to 20 of about 815,742 (291)

Learning the simplicity of scattering amplitudes

SciPost Physics
The simplification and reorganization of complex expressions lies at the core of scientific progress, particularly in theoretical high-energy physics.
Clifford Cheung, Aurélien Dersy, Matthew D. Schwartz
doaj   +4 more sources

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   +4 more sources

Resumming scattering amplitudes for waveforms

Journal of High Energy Physics
We develop a formalism to compute non-perturbative 5-point scattering amplitudes and apply it to gravitational waveforms in the two-body problem for arbitrary trajectories.
Katsuki Aoki, Andrea Cristofoli
doaj   +3 more sources

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, Brandhuber, A, Dorey, P, McLoughlin, T, Abreu, S, Bern, Z, Bjerrum-Bohr, NEJ, Blümlein, J, Britto, R, Carrasco, JJM, Chicherin, D, Chiodaroli, M, Damgaard, PH, Del Duca, V, Dixon, LJ, Dorigoni, D, Duhr, C, Geyer, Y, Green, MB, Herrmann, E, Heslop, P, Johansson, H, Korchemsky, GP, Kosower, DA, Mason, L, Monteiro, R, O’Connell, D, Papathanasiou, G, Planté, L, Plefka, J, Puhm, A, Raclariu, A-M, Roiban, R, Schneider, C, Trnka, J, Vanhove, P, Wen, C, White, CD   +37 more
openaire   +11 more sources

On perturbative scattering amplitudes in maximally supersymmetric theories [PDF]

, 2011
PhDThere has been substantial calculational progress in the last few years in maximally supersymmetric theories, revealing unexpected simplicity, new structures and symmetries. In this thesis, after reviewing some of the recent advances in N = 4 super
Katsaroumpas, Panagiotis
core   +4 more sources

Supergravity scattering amplitudes

Physical Review D, 2023
Supergravity theories with non-minimal Kähler potentials are characterized by a non-trivial field space manifold with corresponding non-trivial kinetic terms. The scattering amplitudes in these theories can be calculated at fixed background field values by making a field redefinition to Riemann normal coordinates.
Emilian Dudas, Tony Gherghetta, Keith A. Olive, Sarunas Verner   +3 more
openaire   +3 more sources

Measure for Chaotic Scattering Amplitudes

Physical Review Letters, 2022
v2: small corrections, references added; v3: minor improvements to match published ...
Massimo Bianchi, Maurizio Firrotta, Jacob Sonnenschein, Dorin Weissman   +3 more
openaire   +5 more sources

Novel approaches to perturbative scattering amplitudes in gauge theory and gravity [PDF]

, 2009
PhDScattering amplitudes of massless quanta play a crucial role in the calculation of cross sections for multi-jet production at hadron colliders. The framework provided by perturbative quantum field theory, based on Feynman diagrams, does not capture ...
Nasti, Adele
core   +4 more sources

Quantum MHV diagrams [PDF]

, 2016
Over the past two years, the use of on-shell techniques has deepened our understanding of the S-matrix of gauge theories and led to the calculation of many new scattering amplitudes.
Brandhuber, A, 7th Workshop on Continuous Advances in QCD, TRAVAGLINI, G   +2 more
core   +4 more sources

ANALYTIC SCATTERING AMPLITUDES FOR QCD [PDF]

Proceedings of the Conference in Honor of C N Yang's 85th Birthday, 2008
By analytically continuing QCD scattering amplitudes through specific complexified momenta, one can study and learn about the nature and the consequences of factorization and unitarity. In some cases, when coupled with the largest time equation and gauge invariance requirement, this approach leads to recursion relations, which greatly simplify the ...
Vaman, Diana, Yao, York-Peng
openaire   +2 more sources