Results 21 to 30 of about 815,742 (291)
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 +2 more
openaire +5 more sources
The SAGEX Review on Scattering Amplitudes, Chapter 14: Classical Gravity from Scattering Amplitudes [PDF]
, 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 +8 more
core +1 more source
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.
openaire +3 more sources
Scattering Amplitudes of Massive N=2 Gauge Theories in Three Dimensions [PDF]
, 2014 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 +6 more
core +1 more source
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
openaire +2 more sources
Infrared singularities in multi-leg scattering amplitudes [PDF]
, 2014 I discuss the state-of-the-art knowledge of long-distance singularities in multi-leg gauge-theory scattering amplitudes and report on an on-going calculation of the three-loop soft anomalous dimension through the renormalization of correlators of semi ...
Einan Gardi, Gardi, Einan; id_orcid
core +1 more source
AN INTEGRAL EQUATION FOR SCATTERING AMPLITUDES
Physical Review Letters, 1969 We outline a dynamical scheme for studying Regge behavior of scattering amplitudes. It is based on unitarity and the concept of short-range momentum-space correlations in high-energy processes.
Chew, G. F. +2 more
openaire +2 more sources
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 +7 more
core +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 +2 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