Classical gravitational scattering from a gauge-invariant double copy

A bstract We propose a method to compute the scattering angle for classical black hole scattering directly from two massive particle irreducible diagrams in a heavy-mass effective field theory approach to general relativity, without the need of subtracting iteration terms. The amplitudes in this eff...

Celý popis

Uloženo v:

Podrobná bibliografie
Vydáno v:	The journal of high energy physics Ročník 2021; číslo 10; s. 1 - 51
Hlavní autoři:	Brandhuber, Andreas, Chen, Gang, Travaglini, Gabriele, Wen, Congkao
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	Berlin/Heidelberg Springer Berlin Heidelberg 15.10.2021 Springer Nature B.V SpringerOpen
Témata:	Amplitudes Black Holes Classical and Quantum Gravitation Classical Theories of Gravity Elementary Particles Field theory Gravitons Gravity High energy physics Integrals Invariants Iterative methods Kinematics Physics Physics and Astronomy Quantum Field Theories Quantum Field Theory Quantum Physics Radiation Regular Article - Theoretical Physics Relativity Relativity Theory Scattering Amplitudes Scattering angle String Theory Theory of relativity Classical Theories of Gravity Scattering Amplitudes Black Holes
ISSN:	1029-8479, 1029-8479
On-line přístup:	Získat plný text
Tagy:	Přidat tag Žádné tagy, Buďte první, kdo vytvoří štítek k tomuto záznamu!

Popis
Shrnutí:	A bstract We propose a method to compute the scattering angle for classical black hole scattering directly from two massive particle irreducible diagrams in a heavy-mass effective field theory approach to general relativity, without the need of subtracting iteration terms. The amplitudes in this effective theory are constructed using a recently proposed novel colour-kinematic/double copy for tree-level two-scalar, multi-graviton amplitudes, where the BCJ numerators are gauge invariant and local with respect to the massless gravitons. These tree amplitudes, together with graviton tree amplitudes, enter the construction of the required D -dimensional loop integrands and allow for a direct extraction of contributions relevant for classical physics. In particular the soft/heavy-mass expansions of full integrands is circumvented, and all iterating contributions can be dropped from the get go. We use this method to compute the scattering angle up to third post-Minkowskian order in four dimensions, including radiation reaction contributions, also providing the expression of the corresponding integrand in D dimensions.
Bibliografie:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 14
ISSN:	1029-8479 1029-8479
DOI:	10.1007/JHEP10(2021)118