Results 61 to 70 of about 56,080 (199)
Bounds on scattering amplitudes [PDF]
Annals of Physics, 1971 Abstract The method of Lagrange multipliers, generalized to include inequality constraints, is used to derive bounds on scattering amplitudes based on unitarity and polynomial behavior. Various physical quantities associated with two-body scattering processes are treated, such as the total cross section, elastic cross section, absorptive part and ...
Richard Blankenbecler, Martin B. Einhorn
openaire +2 more sources
A NOTE ON COULOMB SCATTERING AMPLITUDE [PDF]
International Journal of Modern Physics A, 2007 The summation of the partial wave series for Coulomb scattering amplitude, fC(θ) is usually avoided because the series is oscillatorily and divergent. Instead, fC(θ) is generally obtained by solving the Schrödinger equation in parabolic cylindrical coordinates which is not a general method.
openaire +3 more sources
Helicity amplitudes without gauge cancellation for electroweak processes
European Physical Journal C: Particles and Fields, 2023 In the 5-component representation of weak bosons, the first four components make a Lorentz four vector, representing the transverse and longitudinal polarizations excluding the scalar component of the weak bosons, whereas its fifth component corresponds ...
Junmou Chen +3 more
doaj +1 more source
Y-system for scattering amplitudes [PDF]
Journal of Physics A: Mathematical and Theoretical, 2010 We compute N=4 Super Yang Mills planar amplitudes at strong coupling by considering minimal surfaces in AdS_5 space. The surfaces end on a null polygonal contour at the boundary of AdS. We show how to compute the area of the surfaces as a function of the conformal cross ratios characterizing the polygon at the boundary.
Alday, L +3 more
openaire +5 more sources
Photoacoustics, 2020 Time-domain Brillouin scattering is an opto-acousto-optical probe technique for the evaluation of transparent materials. Via optoacoustic conversion, ultrashort pump laser pulses launch coherent acoustic pulses in the sample.
Vitalyi E. Gusev
doaj
Low-frequency acoustic scattering by an infinitely stratified scatterer [PDF]
Rendiconti di Matematica e delle Sue Applicazioni, 1995 In this work we consider the problem of scattering of a plane acoustic wave by an infinitely stratified scatterer with a soft, a rigid or a resistive core. Firstly, we prove the existence and uniqueness of solutions of this problem.
C. ATHANASIADIS, I.G. STRATIS
doaj
Applied Sciences, 2018 Imaging an object hidden behind a highly scattering medium is difficult since the wave has gone through a round-trip distortion: On the way in for the illumination and on the way out for the detection.
Bin Zhuang +6 more
doaj +1 more source
Scattering on the supermembrane
Journal of High Energy PhysicsWe compute the one-loop 2 → 2 scattering amplitude of massless scalars on the world volume of an infinite D = 11 supermembrane quantized in the static gauge.
Fiona K. Seibold, Arkady A. Tseytlin
doaj +1 more source
Zero energy scattering calculation in Euclidean space
Physics Letters B, 2016 We show that the Bethe–Salpeter equation for the scattering amplitude in the limit of zero incident energy can be transformed into a purely Euclidean form, as it is the case for the bound states.
J. Carbonell, V.A. Karmanov
doaj +1 more source
Analyticity properties of scattering amplitude in theories with compactified space dimensions
Nuclear Physics B, 2019 We consider a massive scalar, neutral, field theory in a five dimensional flat spacetime. Subsequently, one spatial dimension is compactified on a circle, S1, of radius R.
Jnanadeva Maharana
doaj