Results 31 to 40 of about 2,316,597 (371)
Research Paper: Simulated Calculation of Scattering Cross Section of Proton-Deuteron to Helium-Pion Chain Decay Using Chiral Perturbation Theory [PDF]
فیزیک کاربردی ایران, 2022 In this research, the chiral perturbation theory and the mechanism of three-body forces, which are of great importance, are employed through simulations to investigate the chain interaction.
Mojtaba Goodarzi
doaj +1 more source
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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Elastic I=3 /2 p -wave nucleon-pion scattering amplitude and the Δ (1232) resonance from Nf=2+1 lattice QCD [PDF]
, 2017 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 $N_{\mathrm ...
C. Andersen +3 more
semanticscholar +1 more source
Unifying relations for scattering amplitudes [PDF]
Journal of High Energy Physics, 2018 26 pages+refs, 1 figure for the unified web of theories, v2 matched JHEP ...
Clifford Cheung +3 more
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Scattering amplitudes and toric geometry [PDF]
Journal of High Energy Physics, 2013 AbstractIn this paper we provide a first attempt towards a toric geometric interpretation of scattering amplitudes. In recent investigations it has indeed been proposed that the all-loop integrand of planar$ \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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Amplitudes, observables, and classical scattering [PDF]
Journal of High Energy Physics, 2019 Abstract We present a formalism for computing classically measurable quantities directly from on-shell quantum scattering amplitudes. We discuss the ingredients needed for obtaining the classical result, and show how to set up the calculation to derive the result efficiently. We do this without specializing to a specific theory. We
Kosower, David A. +2 more
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Relation between scattering amplitude and Bethe-Salpeter wave function in quantum field theory [PDF]
, 2017 We discuss an exact relation between the two-particle scattering amplitude and the Bethe-Salpeter (BS) wave function inside the interaction range in quantum field theory.
T. Yamazaki, Y. Kuramashi
semanticscholar +1 more source
Compton black-hole scattering for s ≤ 5/2 [PDF]
Journal of High Energy Physics, 2021 Quantum scattering amplitudes for massive matter have received new attention in connection to classical calculations relevant to gravitational-wave physics.
M. Chiodaroli +2 more
semanticscholar +1 more source
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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Scattering amplitudes in affine gravity [PDF]
Physical Review D, 2021 Affine gravity is a connection-based formulation of gravity that does not involve a metric. After a review of basic properties of affine gravity, we compute the tree-level scattering amplitude of scalar particles interacting gravitationally via the connection in a curved spacetime.
Benjamin Knorr, Chris Ripken
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