Results 11 to 20 of about 420,119 (232)

Novel corrections to the momentum sum rule for nuclear structure functions

open access: yesPhysics Letters B, 2022
We address novel features of deep inelastic lepton scattering on nuclei at small Bjorken variable xBj. In this regime the lepton-nuclear cross section involves the interference between the standard lepton-quark scattering amplitude for the deep inelastic
Stanley J. Brodsky   +2 more
doaj   +1 more source

Determination of the scattering amplitude [PDF]

open access: yesCommunications in Mathematical Physics, 1984
Within the range of elastic scattering of two particles the unitarity equation can be formulated as an integral equation for the phase of the analytic scattering amplitude if the cross-section is given. Since the publications of \textit{R. G. Newton} [Determination of the amplitude from the differential cross-section by unitarity, J. Math. Phys.
Gangal, A. D., Kupsch, J.
openaire   +3 more sources

Learning scattering amplitudes by heart [PDF]

open access: yesPhysics Letters B, 2021
18 pages, 6 figures, LaTeX2e, final ...
Severin Barmeier, Koushik Ray
openaire   +4 more sources

Unifying relations for scattering amplitudes [PDF]

open access: yesJournal of High Energy Physics, 2018
26 pages+refs, 1 figure for the unified web of theories, v2 matched JHEP ...
Clifford Cheung   +3 more
openaire   +7 more sources

Scattering Amplitudes with Open Loops [PDF]

open access: yesPhysical 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
openaire   +5 more sources

The amplitude for classical gravitational scattering at third Post-Minkowskian order

open access: yesJournal of High Energy Physics, 2021
We compute the scattering amplitude for classical black-hole scattering to third order in the Post-Minkowskian expansion, keeping all terms needed to derive the scattering angle to that order from the eikonal formalism.
N. Emil J. Bjerrum-Bohr   +3 more
doaj   +1 more source

Amplitudes, observables, and classical scattering [PDF]

open access: yesJournal 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
openaire   +6 more sources

Measure for Chaotic Scattering Amplitudes

open access: yesPhysical Review Letters, 2022
v2: small corrections, references added; v3: minor improvements to match published ...
Massimo Bianchi   +3 more
openaire   +5 more sources

Scattering amplitudes and toric geometry [PDF]

open access: yesJournal 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
openaire   +5 more sources

ANALYTIC SCATTERING AMPLITUDES FOR QCD [PDF]

open access: yesProceedings 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
openaire   +4 more sources

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