Scattering amplitude annihilators
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DOI: 10.1007/jhep02(2020)020
Abstract: Several second order differential operators are shown to annihilate the YM and GR tree scattering amplitudes. In particular we prove a conjecture of Loebbert, Mojaza and Plefka from their investigation of a hidden conformal symmetry… read more here.
Keywords: amplitude annihilators; scattering amplitude;
A scattering amplitude in Conformal Field Theory
Sign Up to like & getrecommendations! Published in 2020 at "Journal of High Energy Physics"
DOI: 10.1007/jhep11(2020)139
Abstract: Abstract We define form factors and scattering amplitudes in Conformal Field Theory as the coefficient of the singularity of the Fourier transform of time-ordered correlation functions, as p2 → 0. In particular, we study a… read more here.
Keywords: amplitude conformal; field theory; scattering amplitude; conformal field ... See more keywords
Analyticity Properties and Asymptotic Behavior of Scattering Amplitude in Higher Dimensional Theories
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Mathematical Physics"
DOI: 10.1063/1.4974265
Abstract: The properties of the high energy behavior of the scattering amplitude of massive, neutral, and spinless particles in higher dimensional field theories are investigated. The axiomatic formulation of Lehmann, Symanzik, and Zimmermann (LSZ) is adopted.… read more here.
Keywords: scattering amplitude; behavior scattering; analyticity properties; analyticity ... See more keywords
Elastic I=3 /2 p -wave nucleon-pion scattering amplitude and the Δ (1232) resonance from Nf=2+1 lattice QCD
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DOI: 10.1103/physrevd.97.014506
Abstract: We present the first direct determination of meson-baryon resonance parameters from a scattering amplitude calculated using lattice QCD. In particular, we calculate the elastic $I=3/2$, $p$-wave nucleon-pion amplitude on a single ensemble of $N_{\mathrm{f}}=2+1$ Wilson-clover… read more here.
Keywords: elastic wave; resonance; scattering amplitude; lattice qcd ... See more keywords
Reply to “Comment on ‘Relation between scattering amplitude and Bethe-Salpeter wave function in quantum field theory”’
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review D"
DOI: 10.1103/physrevd.98.038502
Abstract: We reemphasize the momentum dependence of the coefficients of the derivative expansion as already explained in our paper [1]. We also discuss how the momentum dependence plagues the time-dependent HALQCD method and what is a… read more here.
Keywords: scattering amplitude; relation scattering; reply comment; bethe salpeter ... See more keywords
I=3 Three-Pion Scattering Amplitude from Lattice QCD.
Sign Up to like & getrecommendations! Published in 2020 at "Physical review letters"
DOI: 10.1103/physrevlett.124.032001
Abstract: We analyze the spectrum of two- and three-pion states of maximal isospin obtained recently for isosymmetric QCD with pion mass M≈200 MeV in Hörz and Hanlon, [Phys. Rev. Lett. 123, 142002 (2019)PRLTAO0031-900710.1103/PhysRevLett.123.142002]. Using the relativistic three-particle… read more here.
Keywords: amplitude lattice; three pion; pion scattering; lattice qcd ... See more keywords
Holomorphic Extensions Associated with Fourier-Legendre Series and the Inverse Scattering Problem
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DOI: 10.3390/sym13061009
Abstract: In this paper, we consider the inverse scattering problem and, in particular, the problem of reconstructing the spectral density associated with the Yukawian potentials from the sequence of the partial-waves fℓ of the Fourier–Legendre expansion… read more here.
Keywords: fourier legendre; scattering amplitude; inverse scattering; scattering problem ... See more keywords