Scalar-graviton amplitudes

Autor: N. E. J. Bjerrum-Bohr, Andrea Cristofoli, Poul H. Damgaard, Humberto Gomez
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Journal of High Energy Physics, Vol 2019, Iss 11, Pp 1-20 (2019)
Druh dokumentu: article
ISSN: 1029-8479
DOI: 10.1007/JHEP11(2019)148
Popis: 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 expansions in classical general relativity.
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