Results 1 to 10 of about 2,267,436 (238)
Massive color-kinematics duality and double-copy for Kaluza-Klein scattering amplitudes [PDF]
Journal of High Energy Physics, 2023 We study the structure of scattering amplitudes of massive Kaluza-Klein (KK) states under toroidal compactification. We present a shifting method to quantitatively derive the scattering amplitudes of massive KK gauge bosons and KK gravitons from the ...
Yao Li, Yan-Feng Hang, Hong-Jian He
doaj +2 more sources
Faddeev-type equations for three-body symmetry violating scattering amplitudes [PDF]
Phys.Rev.C82:028502,2010, 2010 The equations which relate three-body and two-body symmetry violating scattering amplitudes are derived in the first order of symmetry violating interactions. They can be used to obtain three-body symmetry violating scattering amplitudes from two-body symmetry violating scattering amplitudes calculated in low energy effective field theory.
L. D. Faddeev +3 more
arxiv +5 more sources
Full one-loop amplitudes from tree amplitudes [PDF]
JHEP 0804:049,2008, 2008 We establish an efficient polynomial-complexity algorithm for one-loop calculations, based on generalized $D$-dimensional unitarity. It allows automated computations of both cut-constructible {\it and} rational parts of one-loop scattering amplitudes from on-shell tree amplitudes.
+21 more
arxiv +5 more sources
Δ-algebra and scattering amplitudes
Journal of High Energy Physics, 2019 In this paper we study an algebra that naturally combines two familiar operations in scattering amplitudes: computations of volumes of polytopes using triangulations and constructions of canonical forms from products of smaller ones.
Freddy Cachazo +3 more
doaj +3 more sources
Soft radiation from scattering amplitudes revisited [PDF]
Journal of High Energy Physics, 2021 We apply the recently developed formalism by Kosower, Maybee and O’Connell (KMOC) [12] to analyse the soft electromagnetic and soft gravitational radiation emitted by particles without spin in D ≥ 4 dimensions.
A. Manu +3 more
doaj +2 more sources
String scattering amplitudes and deformed cubic string field theory
Physics Letters B, 2018 We study string scattering amplitudes by using the deformed cubic string field theory which is equivalent to the string field theory in the proper-time gauge.
Sheng-Hong Lai +3 more
doaj +4 more sources
Post-Newtonian waveforms from spinning scattering amplitudes [PDF]
Journal of High Energy Physics, 2022 We derive the classical gravitational radiation from an aligned spin binary black hole on closed orbits, using a dictionary built from the 5-point QFT scattering amplitude of two massive particles exchanging and emitting a graviton.
Yilber Fabian Bautista, Nils Siemonsen
doaj +2 more sources
Gravitational shock waves and scattering amplitudes [PDF]
Journal of High Energy Physics, 2020 We study gravitational shock waves using scattering amplitude techniques. After first reviewing the derivation in General Relativity as an ultrarelativistic boost of a Schwarzschild solution, we provide an alternative derivation by exploiting a novel ...
Andrea Cristofoli
doaj +2 more sources
Entropy bound and unitarity of scattering amplitudes [PDF]
Journal of High Energy Physics, 2021 We establish that unitarity of scattering amplitudes imposes universal entropy bounds. The maximal entropy of a self-sustained quantum field object of radius R is equal to its surface area and at the same time to the inverse running coupling α evaluated ...
Gia Dvali
doaj +2 more sources
Splitting CEGM amplitudes [PDF]
Journal of High Energy PhysicsThe CEGM formalism offers a general framework for scattering amplitudes, which rests on Grassmannians, moduli spaces and tropical geometry. The physical implications of this generalization are still to be understood.
Bruno Giménez Umbert, Bernd Sturmfels
doaj +2 more sources