Results 1 to 10 of about 390,827 (180)

Scattering amplitude annihilators

open access: yesJournal of High Energy Physics, 2020
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 in GR.
Andrea Nützi, Michael Reiterer
doaj   +2 more sources

Wave-scattering from a gently curved surface [PDF]

open access: yesPhysics 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   +4 more sources

Dual superconformal symmetry of N $$ \mathcal{N} $$ = 2 Chern-Simons theory with fundamental matter at large N [PDF]

open access: yesJournal 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
doaj   +4 more sources

Research Paper: Simulated Calculation of Scattering Cross Section of Proton-Deuteron to Helium-Pion Chain Decay Using Chiral Perturbation Theory [PDF]

open access: yesفیزیک 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

Lévy α-Stable Model for the Non-Exponential Low-|t| Proton–Proton Differential Cross-Section

open access: yesUniverse, 2023
It is known that the Real Extended Bialas–Bzdak (ReBB) model describes the proton–proton (pp) and proton–antiproton (pp¯) differential cross-section data in a statistically non-excludible way, i.e., with a confidence level greater than or equal to 0.1 ...
Tamás Csörgő   +2 more
doaj   +1 more source

Eikonal amplitudes from curved backgrounds

open access: yesSciPost Physics, 2022
Eikonal exponentiation in QFT describes the emergence of classical physics at long distances in terms of a non-trivial resummation of infinitely many diagrams.
Tim Adamo, Andrea Cristofoli, Piotr Tourkine
doaj   +1 more source

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

The pion-pion scattering amplitude [PDF]

open access: yes, 2004
We obtain reliable $\pi\pi$ scattering amplitudes consistent with experimental data, both at low and high energies, and fulfilling appropriate analyticity properties. We do this by first fitting experimental low energy ($s^{1/2}\leq1.42 {\rm GeV}$) phase
B. R. Martin   +5 more
core   +3 more sources

Tidal effects for spinning particles

open access: yesJournal 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

Complex forward scattering coefficient for signal characterisation

open access: yesThe 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

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