Results 11 to 20 of about 31,625 (303)

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
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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
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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
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Likelihood equations and scattering amplitudes [PDF]

Algebraic Statistics, 2021
We relate scattering amplitudes in particle physics to maximum likelihood estimation for discrete models in algebraic statistics. The scattering potential plays the role of the log-likelihood function, and its critical points are solutions to rational function equations.
Sturmfels, B., Telen, S.
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Scattering Amplitudes with Open Loops [PDF]

Physical Review Letters, 2012
We introduce a new technique to generate scattering amplitudes at one loop. Traditional tree algorithms, which handle diagrams with fixed momenta, are promoted to generators of loop-momentum polynomials that we call open loops. Combining open loops with tensor-integral and Ossola-Papadopoulos-Pittau reduction results in a fully flexible, very fast, and
Cascioli, F, Maierhöfer, P, Pozzorini, S   +2 more
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Learning scattering amplitudes by heart

Physics Letters B, 2021
The canonical forms associated to scattering amplitudes of planar Feynman diagrams are interpreted in terms of masses of projectives, defined as the modulus of their central charges, in the hearts of certain t-structures of derived categories of quiver ...
Severin Barmeier, Koushik Ray
doaj   +1 more source

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
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Scattering amplitudes and electromagnetic horizons

Journal of High Energy Physics, 2023
We consider the scattering of charged particles on particular electromagnetic fields which have properties analogous to gravitational horizons. Classically, particles become causally excluded from regions of spacetime beyond a null surface which we ...
Anton Ilderton, William Lindved
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Scattering Amplitudes of Massive N=2 Gauge Theories in Three Dimensions [PDF]

, 2013
We study the scattering amplitudes of mass-deformed Chern-Simons theories and Yang-Mills-Chern-Simons theories with N=2 supersymmetry in three dimensions. In particular, we derive the on-shell supersymmetry algebras which underlie the scattering matrices
Agarwal, Abhishek, Agarwal, A, Young, Donovan, Young, Donovan,, Lipstein, AE, Young, D, Lipstein, Arthur E.   +6 more
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The SAGEX review on scattering amplitudes Chapter 7: Positive geometry of scattering amplitudes

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,
Enrico Herrmann, Jaroslav Trnka
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