Imperial College London
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Claudia de Rham

Faculty of Natural Sciences, Department of Physics

Professor of Theoretical Physics
 
 
 
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Contact

 

c.de-rham CV

 
 
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Location

 

H506Huxley BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Gonzalez:2021:10.1007/JHEP11(2021)087,
author = {Gonzalez, MC and de, Rham C and Tolley, AJ},
doi = {10.1007/JHEP11(2021)087},
journal = {The Journal of High Energy Physics},
pages = {1--36},
title = {Scattering amplitudes for binary systems beyond GR},
url = {http://dx.doi.org/10.1007/JHEP11(2021)087},
volume = {87},
year = {2021}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Amplitude methods have proven to be a promising technique to perform Post-Minkowskian calculations used as inputs to construct gravitational waveforms. In this paper, we show how these methods can be extended beyond the standard calculations in General Relativity with a minimal coupling to matter. As proof of principle, we consider spinless particles conformally coupled to a gravitational helicity-0 mode. We clarify the subtleties in the matching procedure that lead to the potential for conformally coupled matter. We show that in the probe particle limit, we can reproduce well known results for the field profile. With the scattering amplitudes at hand, we compute the conservative potential and scattering angle for the binary system. We find that the result is a non trivial expansion that involves not only the coupling strengths, but also a non trivial dependence on the energy/momentum of the scattered particles.
AU  - Gonzalez,MC
AU  - de,Rham C
AU  - Tolley,AJ
DO  - 10.1007/JHEP11(2021)087
EP  - 36
PY  - 2021///
SN  - 1029-8479
SP  - 1
TI  - Scattering amplitudes for binary systems beyond GR
T2  - The Journal of High Energy Physics
UR  - http://dx.doi.org/10.1007/JHEP11(2021)087
UR  - https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000718091700004&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - https://link.springer.com/article/10.1007/JHEP11(2021)087
UR  - http://hdl.handle.net/10044/1/106022
VL  - 87
ER  -
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