Results 11 to 20 of about 50,464 (300)
Unitarized one-loop graviton-graviton scattering [PDF]
EPJ Web of Conferences, 2022 In this work we interpret the Einstein-Hilbert (EH) Lagrangian of gravitation as the first term of a low-energy effective theory similar to those considered in the chiral Lagrangian approach to low-energy hadron physics or the electroweak chiral ...
Delgado Rafael L. +2 more
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Infrared behavior of graviton-graviton scattering [PDF]
Physical Review D, 1999 The quantum effective theory of general relativity, independent of the eventual full theory at high energy, expresses graviton-graviton scattering at one loop order O(E^4) with only one parameter, Newton's constant.
B.S. DeWitt +11 more
core +5 more sources
Graviton-Graviton Scattering, Bel-Robinson and Energy (Pseudo)-Tensors [PDF]
Classical and Quantum Gravity, 1999 Motivated by recent work involving the graviton-graviton tree scattering amplitude, and its twin descriptions as the square of the Bel-Robinson tensor, $B_{\m\n\a\b}$, and as the "current-current interaction" square of gravitational energy pseudo-tensors
Bel L +18 more
core +8 more sources
Hidden simplicity of the gravity action [PDF]
Journal of High Energy Physics, 2017 We derive new representations of the Einstein-Hilbert action in which graviton perturbation theory is immensely simplified. To accomplish this, we recast the Einstein-Hilbert action as a theory of purely cubic interactions among gravitons and a single ...
Clifford Cheung, Grant N. Remmen
doaj +4 more sources
The giant graviton expansion [PDF]
Journal of High Energy Physics, 2021 We propose and test a novel conjectural relation satisfied by the superconformal index of maximally supersymmetric U(N) gauge theory in four dimensions.
D. Gaiotto, Ji Hoon Lee
semanticscholar +5 more sources
Bounds on graviton mass using weak lensing and SZ effect in galaxy clusters
Physics Letters B, 2018 In General Relativity (GR), the graviton is massless. However, a common feature in several theoretical alternatives of GR is a non-zero mass for the graviton. These theories can be described as massive gravity theories.
Akshay Rana +3 more
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Note on scalar–graviton and scalar–photon–graviton amplitudes [PDF]
European Physical Journal C: Particles and Fields, 2020 In this short note, we propose an algorithm based on the expansions of amplitudes, the dimensional reduction technique and the approach by differential operators, to calculate the tree level scalar–graviton amplitudes with two massive scalars and the ...
Kang Zhou, Guo-Jun Zhou
doaj +3 more sources
On the Scattering of Gravitons on Two Parallel D-Branes [PDF]
, 1997 I discuss the scattering of a graviton (or a dilaton, or an anti-symmetric tensor) on two parallel static Dp-branes.
Andrea Pasquinucci
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IR finite graviton propagators in de Sitter spacetime [PDF]
, 2016 Graviton propagator diverges in certain gauges in de Sitter spacetime. We address this problem in this work by generalizing the infinitesimal BRST transformations in de Sitter spacetime to finite field-dependent BRST (FFBRST) transformations.
Mir Faizal +2 more
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Probing reheating with graviton bremsstrahlung [PDF]
Journal of Cosmology and Astroparticle Physics, 2023 We investigate the stochastic gravitational wave (GW) spectrum resulting from graviton bremsstrahlung during inflationary reheating. We focus on an inflaton ϕ oscillating around a generic monomial potential V(ϕ) ∝ ϕn , considering two different reheating
Nicolás Bernal +3 more
semanticscholar +1 more source