Rotationally non-invariant aspects of scattering amplitudes with graviton exchange
| dc.creator | Datta, Anindya | |
| dc.creator | Gabrielli, Emidio | |
| dc.creator | Mele, Barbara | |
| dc.date | 2004-06-14 | |
| dc.date | 2007-04-18 | |
| dc.date.accessioned | 2026-07-07T07:56:55Z | |
| dc.date.available | 2026-07-07T07:56:55Z | |
| dc.description | We consider the s-channel scattering of massive fermion or vector-boson pairs with equal helicities, mediated by a graviton in the linearized Einstein theory. We show that, although in general both spin-2 and spin-0 components are present in the exchanged graviton, there is a special set of reference frames where the spin-0 graviton component vanishes. This is connected to the dependence of the trace of the graviton propagator on the effective dimension of the space-time spanned by the sources. On the other hand, one finds a non-vanishing (Lorentz-invariant) interference of the graviton amplitude with the scalar-exchange amplitude, that in principle could give measurable effects. | |
| dc.description | Latex 13 pages, 1 eps figure, improved text | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0406149 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0406149 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/127493 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.subject | High Energy Physics - Theory | |
| dc.title | Rotationally non-invariant aspects of scattering amplitudes with graviton exchange | |
| dc.type | text |