Effective field theories and cosmological scattering equations
Abstract We propose worldsheet formulae for wavefunction coefficients of the massive non-linear sigma model (NLSM), scalar Dirac-Born-Infeld (DBI), and special Galileon (sGal) theories in de Sitter momentum space in terms of the recently proposed cosmological scattering equations constructed from co...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2022-08-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP08(2022)054 |
| _version_ | 1798038039930339328 |
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| author | C. Armstrong H. Gomez R. Lipinski Jusinskas A. Lipstein J. Mei |
| author_facet | C. Armstrong H. Gomez R. Lipinski Jusinskas A. Lipstein J. Mei |
| author_sort | C. Armstrong |
| collection | DOAJ |
| description | Abstract We propose worldsheet formulae for wavefunction coefficients of the massive non-linear sigma model (NLSM), scalar Dirac-Born-Infeld (DBI), and special Galileon (sGal) theories in de Sitter momentum space in terms of the recently proposed cosmological scattering equations constructed from conformal generators in the future boundary. The four-point integrands are assembled from simple building blocks and we identify a double copy prescription mapping the NLSM wavefunction coefficient to the DBI and sGal wavefunction coefficients, including mass deformations and curvature corrections. Finally, we compute the soft limits of these wavefunction coefficients and find that they can be written in terms of boundary conformal generators acting on contact diagrams. |
| first_indexed | 2024-04-11T21:34:47Z |
| format | Article |
| id | doaj.art-3ecdd912af164c7eab37c05c311ff7b0 |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-04-11T21:34:47Z |
| publishDate | 2022-08-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-3ecdd912af164c7eab37c05c311ff7b02022-12-22T04:01:48ZengSpringerOpenJournal of High Energy Physics1029-84792022-08-012022813510.1007/JHEP08(2022)054Effective field theories and cosmological scattering equationsC. Armstrong0H. Gomez1R. Lipinski Jusinskas2A. Lipstein3J. Mei4Department of Mathematical Sciences, Durham UniversityDepartment of Mathematical Sciences, Durham UniversityInstitute of Physics of the Czech Academy of Sciences & CEICODepartment of Mathematical Sciences, Durham UniversityDepartment of Mathematical Sciences, Durham UniversityAbstract We propose worldsheet formulae for wavefunction coefficients of the massive non-linear sigma model (NLSM), scalar Dirac-Born-Infeld (DBI), and special Galileon (sGal) theories in de Sitter momentum space in terms of the recently proposed cosmological scattering equations constructed from conformal generators in the future boundary. The four-point integrands are assembled from simple building blocks and we identify a double copy prescription mapping the NLSM wavefunction coefficient to the DBI and sGal wavefunction coefficients, including mass deformations and curvature corrections. Finally, we compute the soft limits of these wavefunction coefficients and find that they can be written in terms of boundary conformal generators acting on contact diagrams.https://doi.org/10.1007/JHEP08(2022)054AdS-CFT CorrespondenceScattering Amplitudes |
| spellingShingle | C. Armstrong H. Gomez R. Lipinski Jusinskas A. Lipstein J. Mei Effective field theories and cosmological scattering equations Journal of High Energy Physics AdS-CFT Correspondence Scattering Amplitudes |
| title | Effective field theories and cosmological scattering equations |
| title_full | Effective field theories and cosmological scattering equations |
| title_fullStr | Effective field theories and cosmological scattering equations |
| title_full_unstemmed | Effective field theories and cosmological scattering equations |
| title_short | Effective field theories and cosmological scattering equations |
| title_sort | effective field theories and cosmological scattering equations |
| topic | AdS-CFT Correspondence Scattering Amplitudes |
| url | https://doi.org/10.1007/JHEP08(2022)054 |
| work_keys_str_mv | AT carmstrong effectivefieldtheoriesandcosmologicalscatteringequations AT hgomez effectivefieldtheoriesandcosmologicalscatteringequations AT rlipinskijusinskas effectivefieldtheoriesandcosmologicalscatteringequations AT alipstein effectivefieldtheoriesandcosmologicalscatteringequations AT jmei effectivefieldtheoriesandcosmologicalscatteringequations |