| Texto completo | |
| Autor(es): |
Foffa, Stefano
;
Sturani, Riccardo
Número total de Autores: 2
|
| Tipo de documento: | Artigo Científico |
| Fonte: | PHYSICAL REVIEW D; v. 100, n. 2, p. 16-pg., 2019-07-24. |
| Resumo | |
Within the framework of the effective field theory approach to the post-Newtonian approximation to general relativity, we report the so-far missing G(3) and G(4) sectors of the conservative two-body dynamics at fourth perturbative order for nonspinning compact objects. Following the standard procedure, the gravitational interaction is integrated out to obtain a systematic expansion in terms of Feynman graphs. Building on this result and on previously obtained ones, we are able to write the local-in-time regularized Lagrangian at fourth post-Newtonian order, which is in agreement with results previously computed with other methods. (AU) | |
| Processo FAPESP: | 16/01343-7 - ICTP Instituto Sul-Americano para Física Fundamental: um centro regional para física teórica |
| Beneficiário: | Nathan Jacob Berkovits |
| Modalidade de apoio: | Auxílio à Pesquisa - Projetos Especiais |
| Processo FAPESP: | 12/14132-3 - Análise das ondas gravitacionais |
| Beneficiário: | Riccardo Sturani |
| Modalidade de apoio: | Auxílio à Pesquisa - Jovens Pesquisadores |