Soft gravitational radiation from multi-body collisions
Abstract We derive a universal expression for the gravitational radiation energy spectrum dE GW /dω at sub-leading order emitted from a generic gravitational hard scattering of multi-particles or multi-bodies. Our result includes all O $$ \mathcal{O} $$ (ω) corrections to the gravitational radiation...
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SpringerOpen
2021
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oai:doaj.org-article:487d4c17d8254cd0bf17ee93c76d42422021-11-28T12:40:33ZSoft gravitational radiation from multi-body collisions10.1007/JHEP11(2021)1931029-8479https://doaj.org/article/487d4c17d8254cd0bf17ee93c76d42422021-11-01T00:00:00Zhttps://doi.org/10.1007/JHEP11(2021)193https://doaj.org/toc/1029-8479Abstract We derive a universal expression for the gravitational radiation energy spectrum dE GW /dω at sub-leading order emitted from a generic gravitational hard scattering of multi-particles or multi-bodies. Our result includes all O $$ \mathcal{O} $$ (ω) corrections to the gravitational radiation flux from a generic 2 → N collision, in both the cases of massless and massive particles/bodies. We also show the dependence of the radiation energy flux by the quantum spin in case of particle collisions. Then, we consider the specific case of a gravitational elastic scattering of two massive bodies, i.e. m + M → m + M with m, M the masses of the two bodies respectively. We demonstrate that in this case all O $$ \mathcal{O} $$ (ω) contributions to the energy flux exactly cancel each others. Nevertheless, we also show that, for a 2 → 2 inelastic scattering, the inclusion of sub-leading soft gravitons leads to a not zero radiation flux, having a simple expression in certain asymptotic regimes. Our results can be applied to the case of Black Hole collisions with possible testable implications in gravitational waves physics.Andrea AddaziKaiqiang Alan ZengSpringerOpenarticleBlack HolesClassical Theories of GravityModels of Quantum GravityNuclear and particle physics. Atomic energy. RadioactivityQC770-798ENJournal of High Energy Physics, Vol 2021, Iss 11, Pp 1-25 (2021) |
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DOAJ |
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DOAJ |
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EN |
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Black Holes Classical Theories of Gravity Models of Quantum Gravity Nuclear and particle physics. Atomic energy. Radioactivity QC770-798 |
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Black Holes Classical Theories of Gravity Models of Quantum Gravity Nuclear and particle physics. Atomic energy. Radioactivity QC770-798 Andrea Addazi Kaiqiang Alan Zeng Soft gravitational radiation from multi-body collisions |
| description |
Abstract We derive a universal expression for the gravitational radiation energy spectrum dE GW /dω at sub-leading order emitted from a generic gravitational hard scattering of multi-particles or multi-bodies. Our result includes all O $$ \mathcal{O} $$ (ω) corrections to the gravitational radiation flux from a generic 2 → N collision, in both the cases of massless and massive particles/bodies. We also show the dependence of the radiation energy flux by the quantum spin in case of particle collisions. Then, we consider the specific case of a gravitational elastic scattering of two massive bodies, i.e. m + M → m + M with m, M the masses of the two bodies respectively. We demonstrate that in this case all O $$ \mathcal{O} $$ (ω) contributions to the energy flux exactly cancel each others. Nevertheless, we also show that, for a 2 → 2 inelastic scattering, the inclusion of sub-leading soft gravitons leads to a not zero radiation flux, having a simple expression in certain asymptotic regimes. Our results can be applied to the case of Black Hole collisions with possible testable implications in gravitational waves physics. |
| format |
article |
| author |
Andrea Addazi Kaiqiang Alan Zeng |
| author_facet |
Andrea Addazi Kaiqiang Alan Zeng |
| author_sort |
Andrea Addazi |
| title |
Soft gravitational radiation from multi-body collisions |
| title_short |
Soft gravitational radiation from multi-body collisions |
| title_full |
Soft gravitational radiation from multi-body collisions |
| title_fullStr |
Soft gravitational radiation from multi-body collisions |
| title_full_unstemmed |
Soft gravitational radiation from multi-body collisions |
| title_sort |
soft gravitational radiation from multi-body collisions |
| publisher |
SpringerOpen |
| publishDate |
2021 |
| url |
https://doaj.org/article/487d4c17d8254cd0bf17ee93c76d4242 |
| work_keys_str_mv |
AT andreaaddazi softgravitationalradiationfrommultibodycollisions AT kaiqiangalanzeng softgravitationalradiationfrommultibodycollisions |
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1718407829957640192 |