Unitarized one-loop graviton-graviton scattering
In this work we interpret the Einstein-Hilbert (EH) Lagrangian of gravitation as the first term of a low-energy effective theory similar to those considered in the chiral Lagrangian approach to low-energy hadron physics or the electroweak chiral Lagragians describing the symmetry breaking sector of...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2022-01-01
|
| Series: | EPJ Web of Conferences |
| Online Access: | https://www.epj-conferences.org/articles/epjconf/pdf/2022/18/epjconf_confxv2022_08010.pdf |
| _version_ | 1828062296420646912 |
|---|---|
| author | Delgado Rafael L. Dobado Antonio Espriu Domènec |
| author_facet | Delgado Rafael L. Dobado Antonio Espriu Domènec |
| author_sort | Delgado Rafael L. |
| collection | DOAJ |
| description | In this work we interpret the Einstein-Hilbert (EH) Lagrangian of gravitation as the first term of a low-energy effective theory similar to those considered in the chiral Lagrangian approach to low-energy hadron physics or the electroweak chiral Lagragians describing the symmetry breaking sector of the Standard Model (SM). Starting from the one-loop computation of the elastic gravitongraviton scattering amplitude by Dunbar and Norridge, we unitarize the IR regularized partial waves by using the Inverse Amplitude Method (IAM). This method enlarges the regime of applicability of the perturbative results to higher energies of the order of the Plank scale MP and allows for the possibility of poles in the second Riemann which have the natural interpretation of dynamical resonances. In this work we look for these possible resonances for the ++++ and −−−− helicity channels and the J = 0, 2 and 4 partial waves. |
| first_indexed | 2024-04-10T22:26:13Z |
| format | Article |
| id | doaj.art-69367a6401bd495096e3705e0780cc11 |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-04-10T22:26:13Z |
| publishDate | 2022-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-69367a6401bd495096e3705e0780cc112023-01-17T09:14:37ZengEDP SciencesEPJ Web of Conferences2100-014X2022-01-012740801010.1051/epjconf/202227408010epjconf_confxv2022_08010Unitarized one-loop graviton-graviton scatteringDelgado Rafael L.0Dobado Antonio1Espriu Domènec2Matemática Aplicada a las TIC, ETSIS de Telecomunicación, Universidad Politécnica de Madrid (Campus Sur)Departamento de Física Teórica and IPARCOS, Universidad Complutense de MadridDepartament de Física Quàntica i Astrofísica and Institut de Ciències del Cosmos (ICCUB), Universitat de BarcelonaIn this work we interpret the Einstein-Hilbert (EH) Lagrangian of gravitation as the first term of a low-energy effective theory similar to those considered in the chiral Lagrangian approach to low-energy hadron physics or the electroweak chiral Lagragians describing the symmetry breaking sector of the Standard Model (SM). Starting from the one-loop computation of the elastic gravitongraviton scattering amplitude by Dunbar and Norridge, we unitarize the IR regularized partial waves by using the Inverse Amplitude Method (IAM). This method enlarges the regime of applicability of the perturbative results to higher energies of the order of the Plank scale MP and allows for the possibility of poles in the second Riemann which have the natural interpretation of dynamical resonances. In this work we look for these possible resonances for the ++++ and −−−− helicity channels and the J = 0, 2 and 4 partial waves.https://www.epj-conferences.org/articles/epjconf/pdf/2022/18/epjconf_confxv2022_08010.pdf |
| spellingShingle | Delgado Rafael L. Dobado Antonio Espriu Domènec Unitarized one-loop graviton-graviton scattering EPJ Web of Conferences |
| title | Unitarized one-loop graviton-graviton scattering |
| title_full | Unitarized one-loop graviton-graviton scattering |
| title_fullStr | Unitarized one-loop graviton-graviton scattering |
| title_full_unstemmed | Unitarized one-loop graviton-graviton scattering |
| title_short | Unitarized one-loop graviton-graviton scattering |
| title_sort | unitarized one loop graviton graviton scattering |
| url | https://www.epj-conferences.org/articles/epjconf/pdf/2022/18/epjconf_confxv2022_08010.pdf |
| work_keys_str_mv | AT delgadorafaell unitarizedoneloopgravitongravitonscattering AT dobadoantonio unitarizedoneloopgravitongravitonscattering AT espriudomenec unitarizedoneloopgravitongravitonscattering |