Photon-photon scattering from a UV-complete gravity QFT
Abstract Quantum quadratic gravity (QQG) produces a tree-level differential cross section for γγ → γγ that is well-behaved at all energies. From this we can study how the corrections to low energy scattering amplitudes are related to the UV physics, in particular to the exchange of the massive gravi...
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2022-04-01
|
| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP04(2022)133 |
| _version_ | 1797865823039127552 |
|---|---|
| author | Bob Holdom |
| author_facet | Bob Holdom |
| author_sort | Bob Holdom |
| collection | DOAJ |
| description | Abstract Quantum quadratic gravity (QQG) produces a tree-level differential cross section for γγ → γγ that is well-behaved at all energies. From this we can study how the corrections to low energy scattering amplitudes are related to the UV physics, in particular to the exchange of the massive graviparticles. An effective forward scattering amplitude is obtained by separating out the effects of the t-channel graviton pole. This is possible due to the UV-completeness, and even though the Froissart bound is not satisfied. We then consider photon-photon scattering to two graviparticles and a further imaginary contribution to the γγ → γγ forward scattering amplitude. Unitarity without positivity is a key property of QQG and it impacts all our results. |
| first_indexed | 2024-04-09T23:13:59Z |
| format | Article |
| id | doaj.art-46b0fe7d18ec42a6a20758e53039f7b3 |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-04-09T23:13:59Z |
| publishDate | 2022-04-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-46b0fe7d18ec42a6a20758e53039f7b32023-03-22T10:10:15ZengSpringerOpenJournal of High Energy Physics1029-84792022-04-012022411410.1007/JHEP04(2022)133Photon-photon scattering from a UV-complete gravity QFTBob Holdom0Department of Physics, University of TorontoAbstract Quantum quadratic gravity (QQG) produces a tree-level differential cross section for γγ → γγ that is well-behaved at all energies. From this we can study how the corrections to low energy scattering amplitudes are related to the UV physics, in particular to the exchange of the massive graviparticles. An effective forward scattering amplitude is obtained by separating out the effects of the t-channel graviton pole. This is possible due to the UV-completeness, and even though the Froissart bound is not satisfied. We then consider photon-photon scattering to two graviparticles and a further imaginary contribution to the γγ → γγ forward scattering amplitude. Unitarity without positivity is a key property of QQG and it impacts all our results.https://doi.org/10.1007/JHEP04(2022)133Models of Quantum GravityScattering Amplitudes |
| spellingShingle | Bob Holdom Photon-photon scattering from a UV-complete gravity QFT Journal of High Energy Physics Models of Quantum Gravity Scattering Amplitudes |
| title | Photon-photon scattering from a UV-complete gravity QFT |
| title_full | Photon-photon scattering from a UV-complete gravity QFT |
| title_fullStr | Photon-photon scattering from a UV-complete gravity QFT |
| title_full_unstemmed | Photon-photon scattering from a UV-complete gravity QFT |
| title_short | Photon-photon scattering from a UV-complete gravity QFT |
| title_sort | photon photon scattering from a uv complete gravity qft |
| topic | Models of Quantum Gravity Scattering Amplitudes |
| url | https://doi.org/10.1007/JHEP04(2022)133 |
| work_keys_str_mv | AT bobholdom photonphotonscatteringfromauvcompletegravityqft |