Results 11 to 20 of about 423,687 (279)
Measure for Chaotic Scattering Amplitudes
Physical Review Letters, 2022 v2: small corrections, references added; v3: minor improvements to match published ...
Massimo Bianchi +3 more
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Syzygies probing scattering amplitudes [PDF]
Journal of High Energy Physics, 2016 33 pages, 10 ...
Chen, Gang +4 more
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Scattering Amplitudes with Open Loops [PDF]
Physical Review Letters, 2012 5 pages, 3 figures; v2: Comment on ordering added after eq. (6); typos in eqs. (14,16,17) corrected; various cosmetic changes; reference added.
Cascioli, F +2 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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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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Tidal effects for spinning particles
Journal of High Energy Physics, 2021 Expanding on the recent derivation of tidal actions for scalar particles, we present here the action for a tidally deformed spin-1/2 particle. Focusing on operators containing two powers of the Weyl tensor, we combine the Hilbert series with an on-shell ...
Rafael Aoude +2 more
doaj +1 more source
Quasiclassical Green function in an external field and small-angle scattering [PDF]
, 1999 The quasiclassical Green functions of the Dirac and Klein-Gordon equations in the external electric field are obtained with the first correction taken into account.
A. I. Akhiezer +21 more
core +2 more sources
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
doaj +1 more source
Positive moments for scattering amplitudes [PDF]
Physical Review D, 2021 We find the complete set of conditions satisfied by the forward $2\to2$ scattering amplitude in unitarity and causal theories. These are based on an infinite set of energy dependent quantities -- the arcs -- which are dispersively expressed as moments of a positive measure defined at (arbitrarily) higher energies.
Bellazzini, Brando +4 more
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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
doaj +1 more source