On an exponential representation of the gravitational S-matrix
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On an exponential representation of the gravitational S-matrix. / Damgaard, Poul H.; Plante, Ludovic; Vanhove, Pierre.
In: Journal of High Energy Physics, Vol. 2021, No. 11, 213, 29.11.2021.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - On an exponential representation of the gravitational S-matrix
AU - Damgaard, Poul H.
AU - Plante, Ludovic
AU - Vanhove, Pierre
PY - 2021/11/29
Y1 - 2021/11/29
N2 - An exponential representation of the S-matrix provides a natural framework for understanding the semi-classical limit of scattering amplitudes. While sharing some similarities with the eikonal formalism it differs from it in details. Computationally, rules are simple because pieces that must be subtracted are given by combinations of unitarity cuts. Analyzing classical gravitational scattering to third Post-Minkowskian order in both maximal supergravity and Einstein gravity we find agreement with other approaches, including the contributions from radiation reaction terms. The kinematical relation for the two-body problem in isotropic coordinates follows immediately from this procedure, again with the inclusion of radiation reaction pieces up to third Post-Minkowskian order.
AB - An exponential representation of the S-matrix provides a natural framework for understanding the semi-classical limit of scattering amplitudes. While sharing some similarities with the eikonal formalism it differs from it in details. Computationally, rules are simple because pieces that must be subtracted are given by combinations of unitarity cuts. Analyzing classical gravitational scattering to third Post-Minkowskian order in both maximal supergravity and Einstein gravity we find agreement with other approaches, including the contributions from radiation reaction terms. The kinematical relation for the two-body problem in isotropic coordinates follows immediately from this procedure, again with the inclusion of radiation reaction pieces up to third Post-Minkowskian order.
KW - Scattering Amplitudes
KW - Classical Theories of Gravity
KW - Effective Field Theories
KW - QUANTUM-GRAVITY
KW - SCATTERING
U2 - 10.1007/JHEP11(2021)213
DO - 10.1007/JHEP11(2021)213
M3 - Journal article
VL - 2021
JO - Journal of High Energy Physics (Online)
JF - Journal of High Energy Physics (Online)
SN - 1126-6708
IS - 11
M1 - 213
ER -
ID: 286311069