Results 21 to 30 of about 56,080 (199)
Scattering amplitudes and toric geometry [PDF]
Journal of High Energy Physics, 2013 AbstractIn this paper we provide a first attempt towards a toric geometric interpretation of scattering amplitudes. In recent investigations it has indeed been proposed that the all-loop integrand of planar$ \mathcal{N} $= 4 SYM can be represented in terms of well defined finite objects called on-shell diagrams drawn on disks.
Amariti, Antonio, Forcella, Davide
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Protostring scattering amplitudes [PDF]
Physical Review D, 2016 We calculate some tree level scattering amplitudes for a generalization of the protostring, which is a novel string model implied by the simplest string bit models. These bit models produce a lightcone worldsheet which supports $s$ integer moded Grassmann fields.
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Syzygies probing scattering amplitudes [PDF]
Journal of High Energy Physics, 2016 33 pages, 10 ...
Yehao Zhou +5 more
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Wave-scattering from a gently curved surface
Physics Letters B, 2016 We study wave scattering from a gently curved surface. We show that the recursive relations, implied by shift invariance, among the coefficients of the perturbative series for the scattering amplitude allow to perform an infinite resummation of the ...
Giuseppe Bimonte
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On the Cuts of Scattering Amplitudes [PDF]
Nuclear Physics B - Proceedings Supplements, 2008 The use of complex analysis for computing one-loop scattering amplitudes is naturally induced by generalised unitarity-cut conditions, fulfilled by complex values of the loop variable. We report on two techniques: the cut-integration with spinor-variables as contour integrals of rational functions; and the use of the Discrete Fourier Transform to ...
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Complex forward scattering coefficient for signal characterisation
The Journal of Engineering, 2019 In this study, modelling and characteristics analysis of forward scattering coefficients and echoes are investigated. Traditional ground-target forward scattering signal model has not considered the impact of scattering phase; thus it is not accurate ...
Jing Chen +3 more
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Scattering of Electromagnetic Waveson Lattices of Rectangular Dielectric Resonators
Vìsnik Nacìonalʹnogo Tehnìčnogo Unìversitetu Ukraïni Kììvsʹkij Polìtehnìčnij Ìnstitut: Serìâ Radìotehnìka, Radìoaparatobuduvannâ, 2021 The c-functions that determine the degree of influence of an external exciting electromagnetic field on a rectangular dielectric resonator (DR) in open space are calculated and investigated.
О. О. Трубін
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Journal of High Energy Physics, 2019 Dual conformal symmetry and Yangian symmetry are symmetries of amplitudes that have aided the study of scattering amplitudes in highly supersymmetric theories like N $$ \mathcal{N} $$ = 4 SYM and ABJM.
Karthik Inbasekar +7 more
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A scattering amplitude for massive particles in AdS
Journal of High Energy Physics, 2022 In this paper, we propose a conformally covariant momentum space representation of CFT correlation functions. We call it the AdS S-matrix. This representation has the property that it reduces to the S-matrix in the flat space limit.
Abhijit Gadde, Trakshu Sharma
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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 ...
Diana Vaman, York-Peng Yao
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