Results 81 to 90 of about 2,132,739 (345)
Scattering amplitudes and the double copy in topologically massive theories [PDF]
Journal of High Energy Physics, 2020 Using the principles of the modern scattering amplitudes programme, we develop a formalism for constructing the amplitudes of three-dimensional topologically massive gauge theories and gravity.
Nathan Moynihan
semanticscholar +1 more source
On scattering off the extreme Reissner-Nordstr\"om black hole in N=2 supergravity [PDF]
, 1997 The scattering amplitudes for the perturbed fields of the N=2 supergravity about the extreme Reissner-Nordstr\"om black hole is examined. Owing to the fact that the extreme hole is a BPS state of the theory and preserves an unbroken global supersymmetry ...
C. F. E. Holzhey +21 more
core +2 more sources
, 2013 The purpose of this review is to bridge the gap between a standard course in quantum field theory and recent fascinating developments in the studies of on-shell scattering amplitudes. We build up the subject from basic quantum field theory, starting with Feynman rules for simple processes in Yukawa theory and QED.
Elvang, Henriette, Huang, Yu-tin
openaire +2 more sources
Massive spin-2 scattering amplitudes in extra-dimensional theories [PDF]
Physical Review D, 2020 Author(s): Chivukula, R Sekhar; Foren, Dennis; Mohan, Kirtimaan A; Sengupta, Dipan; Simmons, Elizabeth H | Abstract: In this paper we describe in detail the computation of the scattering amplitudes of massive spin-2 Kaluza-Klein excitations in a ...
R. Chivukula +4 more
semanticscholar +1 more source
Gravitational partial-wave absorption from scattering amplitudes
Journal of High Energy Physics, 2023 We study gravitational absorption effects using effective on-shell scattering amplitudes. We develop an in-in probability-based framework involving plane- and partial-wave coherent states for the incoming wave to describe the interaction of the wave with
Rafael Aoude, Alexander Ochirov
doaj +1 more source
Automated computation of scattering amplitudes
, 2013 We review some of the recent advances in the computation of one-loop scattering amplitudes which led to the construction of efficient and automated computational tools for NLO predictions.
Ossola, Giovanni
core +1 more source
Scattering amplitudes and contour deformations [PDF]
Physical Review D, 2019 We employ a scalar model to exemplify the use of contour deformations when solving Lorentz-invariant integral equations for scattering amplitudes. In particular, we calculate the onshell 2 -> 2 scattering amplitude for the scalar system. The integrals produce branch cuts in the complex plane of the integrand which prohibit a naive Euclidean ...
Pedro Duarte +4 more
openaire +3 more sources
Two-Loop Four-Graviton Scattering Amplitudes. [PDF]
Physical Review Letters, 2020 We present the analytic form of the two-loop four-graviton scattering amplitudes in Einstein gravity. To remove ultraviolet divergences we include counterterms quadratic and cubic in the Riemann curvature tensor. The two-loop numerical unitarity approach
S. Abreu +6 more
semanticscholar +1 more source
From Scattering Amplitudes to Classical Potentials in the Post-Minkowskian Expansion. [PDF]
Physical Review Letters, 2018 We combine tools from effective field theory and generalized unitarity to construct a map between on-shell scattering amplitudes and the classical potential for interacting spinless particles.
C. Cheung, I. Rothstein, M. Solon
semanticscholar +1 more source
Diffusion‐based size determination of solute particles: a method adapted for postsynaptic proteins
FEBS Open Bio, EarlyView.We present a diffusion‐based approach for measuring the size of macromolecules and their complexes, and demonstrate its use on postsynaptic proteins. The method requires fluorescein‐labelled protein samples, a microfluidic device that maintains laminar flow for said samples, a microscope recording the emitted fluorescent signals, and an analytic ...
András László Szabó +7 more
wiley +1 more source