Results 51 to 60 of about 50,464 (300)
Photons, neutrinos and large compact space dimensions [PDF]
, 2000 We compute the contribution of Kaluza-Klein graviton exchange to the cross section for photon-neutrino scattering. Unlike the usual situation where the virtual graviton exchange represents a small correction to a leading order electroweak or strong ...
A. Abbasabadi +16 more
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Graviton-photon scattering [PDF]
Physical Review D, 2015 LaTeX, 33 pages, 5 figures; v2 typos corrected, version to be published in ...
Bjerrum-Bohr, N. Emil J. +3 more
openaire +3 more sources
The graviton self-energy in thermal quantum gravity [PDF]
, 1993 We show generally that in thermal gravity, the one-particle irreducible 2-point function depends on the choice of the basic graviton fields. We derive the relevant properties of a physical graviton self-energy, which is independent of the parametrization
A. Rebhan +19 more
core +3 more sources
American Journal of Physics, 2006 The interactions of gravitons with matter are calculated in parallel with the familiar photon case. It is shown that graviton scattering amplitudes can be factorized into a product of familiar electromagnetic forms. The cross sections for various reactions are evaluated straightforwardly using helicity methods.
openaire +2 more sources
The European Physical Journal A, 2020 Both gravitons and pions are described by non-linear and non-renormalizable actions at low energies. These are most usefully treated by effective field theory, which is a full quantum field theoretic approach that relies only on the low energy degrees of freedom and their interactions.
openaire +2 more sources
Scalar-graviton amplitudes [PDF]
Journal of High Energy Physics, 2019 Abstract Using the CHY-formalism and its extension to a double cover we provide covariant expressions for tree-level amplitudes with two massive scalar legs and an arbitrary number of gravitons in D dimensions. Using unitarity methods, such amplitudes are needed inputs for the computation of post-Newtonian and post-Minkowskian ...
Bjerrum-Bohr, N. E. J. +3 more
openaire +6 more sources
On the motion of bodies based on changes in the kinetic moment
RUDN Journal of Engineering Research, 2019 The controlled motion of a body in a central gravitational field without mass flow is considered. The possibility of moving the body in the radial direction from the center of attraction due to changes in the kinetic moment relative to the center of mass
Yury N. Razoumny, Sergei A. Kupreev
doaj +1 more source
Giant gravitons on the Schrödinger pp-wave geometry
Journal of High Energy Physics, 2020 We construct a new giant graviton solution on the recently constructed pp-wave geometry of the non-supersymmetric Schrödinger background. That solution exhibits an intriguing behavior as the deformation parameter of the spacetime varies.
George Georgiou, Dimitrios Zoakos
doaj +1 more source
Emergent Gravity Simulations for Schwarzschild–de Sitter Scenarios
Foundations, 2023 Building on previous work that considered gravity to emerge from the collective behaviour of discrete, pre-geometric spacetime constituents, this work identifies these constituents with gravitons and rewrites their effective gravity-inducing interaction ...
Arno Keppens
doaj +1 more source
Graviton non-Gaussianities and parity violation in the EFT of inflation [PDF]
Journal of Cosmology and Astroparticle Physics, 2020 We study graviton non-Gaussianities in the EFT of Inflation. At leading (second) order in derivatives, the graviton bispectrum is fixed by Einstein gravity. There are only two contributions at third order. One of them breaks parity.
Lorenzo Bordin, G. Cabass
semanticscholar +1 more source