Emerging Hawking-Like Radiation from Gravitational Bremsstrahlung Beyond the Planck Scale

We argue that, as a consequence of the graviton's spin-2, its bremsstrahlung in trans-planckian-energy ($E\gg M_P$) gravitational scattering at small deflection angle can be nicely expressed in terms of helicity-transformation phases and their transfer within the scattering process. The resulti...

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Detalles Bibliográficos
Autores principales: Ciafaloni, Marcello, Colferai, Dimitri, Veneziano, Gabriele
Lenguaje:eng
Publicado: 2015
Materias:
Particle Physics - Theory
Acceso en línea:https://dx.doi.org/10.1103/PhysRevLett.115.171301
http://cds.cern.ch/record/2018343
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author Ciafaloni, Marcello
Colferai, Dimitri
Veneziano, Gabriele
author_facet Ciafaloni, Marcello
Colferai, Dimitri
Veneziano, Gabriele
author_sort Ciafaloni, Marcello
collection CERN
description We argue that, as a consequence of the graviton's spin-2, its bremsstrahlung in trans-planckian-energy ($E\gg M_P$) gravitational scattering at small deflection angle can be nicely expressed in terms of helicity-transformation phases and their transfer within the scattering process. The resulting spectrum exhibits deeply sub-planckian characteristic energies of order $M_P^2/E \ll M_P$ (reminiscent of Hawking radiation), a suppressed fragmentation region, and a reduced rapidity plateau, in broad agreement with recent classical estimates.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2015
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spelling cern-20183432023-03-14T18:27:29Zdoi:10.1103/PhysRevLett.115.171301http://cds.cern.ch/record/2018343engCiafaloni, MarcelloColferai, DimitriVeneziano, GabrieleEmerging Hawking-Like Radiation from Gravitational Bremsstrahlung Beyond the Planck ScaleParticle Physics - TheoryWe argue that, as a consequence of the graviton's spin-2, its bremsstrahlung in trans-planckian-energy ($E\gg M_P$) gravitational scattering at small deflection angle can be nicely expressed in terms of helicity-transformation phases and their transfer within the scattering process. The resulting spectrum exhibits deeply sub-planckian characteristic energies of order $M_P^2/E \ll M_P$ (reminiscent of Hawking radiation), a suppressed fragmentation region, and a reduced rapidity plateau, in broad agreement with recent classical estimates.We argue that, as a consequence of the graviton’s spin-2, its bremsstrahlung in trans-Planckian-energy (E≫MP) gravitational scattering at small deflection angle can be nicely expressed in terms of helicity-transformation phases and their transfer within the scattering process. The resulting spectrum exhibits deeply sub-Planckian characteristic energies of order MP2/E≪MP (reminiscent of Hawking radiation), a suppressed fragmentation region, and a reduced rapidity plateau, in broad agreement with recent classical estimates.We argue that, as a consequence of the graviton's spin-2, its bremsstrahlung in trans-planckian-energy ($E\gg M_P$) gravitational scattering at small deflection angle can be nicely expressed in terms of helicity-transformation phases and their transfer within the scattering process. The resulting spectrum exhibits deeply sub-planckian characteristic energies of order $M_P^2/E \ll M_P$ (reminiscent of Hawking radiation), a suppressed fragmentation region, and a reduced rapidity plateau, in broad agreement with recent classical estimates.arXiv:1505.06619CERN-PH-TH-2015-131CERN-PH-TH-2015-131oai:cds.cern.ch:20183432015-05-25
spellingShingle Particle Physics - Theory
Ciafaloni, Marcello
Colferai, Dimitri
Veneziano, Gabriele
Emerging Hawking-Like Radiation from Gravitational Bremsstrahlung Beyond the Planck Scale
title Emerging Hawking-Like Radiation from Gravitational Bremsstrahlung Beyond the Planck Scale
title_full Emerging Hawking-Like Radiation from Gravitational Bremsstrahlung Beyond the Planck Scale
title_fullStr Emerging Hawking-Like Radiation from Gravitational Bremsstrahlung Beyond the Planck Scale
title_full_unstemmed Emerging Hawking-Like Radiation from Gravitational Bremsstrahlung Beyond the Planck Scale
title_short Emerging Hawking-Like Radiation from Gravitational Bremsstrahlung Beyond the Planck Scale
title_sort emerging hawking-like radiation from gravitational bremsstrahlung beyond the planck scale
topic Particle Physics - Theory
url https://dx.doi.org/10.1103/PhysRevLett.115.171301
http://cds.cern.ch/record/2018343
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AT colferaidimitri emerginghawkinglikeradiationfromgravitationalbremsstrahlungbeyondtheplanckscale
AT venezianogabriele emerginghawkinglikeradiationfromgravitationalbremsstrahlungbeyondtheplanckscale

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