Modified celestial amplitude in Einstein gravity

A bstract In this paper we evaluate the modified celestial amplitude for gravitons and gluons, as defined in [ 4 ]. We find that the modified (tree) amplitude is finite for gravitons in Einstein gravity. The modified amplitude behaves like correlation function of operators inserted at various points...

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Bibliographic Details
Published inThe journal of high energy physics Vol. 2020; no. 3; pp. 1 - 19
Main Authors Banerjee, Shamik, Ghosh, Sudip, Pandey, Pranjal, Saha, Arnab Priya
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer Berlin Heidelberg 01.03.2020
Springer Nature B.V
SpringerOpen
Subjects
Amplitudes
Classical and Quantum Gravitation
Conformal Field Theory
Elementary Particles
Gluons
Gravitation
Gravitons
Gravity
High energy physics
Minkowski space
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Quantum Physics
Regular Article - Theoretical Physics
Relativity Theory
Scattering Amplitudes
Space-Time Symmetries
Spacetime
String Theory
Scattering Amplitudes
Conformal Field Theory
Space-Time Symmetries
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Summary:A bstract In this paper we evaluate the modified celestial amplitude for gravitons and gluons, as defined in [ 4 ]. We find that the modified (tree) amplitude is finite for gravitons in Einstein gravity. The modified amplitude behaves like correlation function of operators inserted at various points of null-infinity in the Minkowski space-time. Therefore, unlike the standard celestial amplitudes, these are three dimensional objects. We also show that this amplitude admits conformal soft factorization recently studied in the literature.
ISSN:1029-8479
1029-8479
DOI:10.1007/JHEP03(2020)125